TOF/AliTOFReconstructioner.cxx

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   3  *                                                                        *
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  15
  16 //_________________________________________________________________________
  17 // Manager class for TOF reconstruction.
  18 //
  19 //
  20 //-- Authors: Bologna-ITEP-Salerno Group
  21 //
  22 // Description: Manager class for TOF reconstruction (derived from TTask)
  23 // Summary of the main methods:
  24 // - extraction of the TPC (assumed to be) reconstructed tracks
  25 //   comment: it has to me moved as soon as possible into a separate
  26 //   class AliTOFTrackReader (K. Safarik suggestion)
  27 // - geometrical propagation of the above tracks till TOF detector
  28 // - matching of the tracks with the TOF signals
  29 //
  30 // Remark: the GEANT3.21 geometry is used during the geometrical propagation
  31 // of the tracks in order to know the current volume reached by the track.
  32 //
  33 //////////////////////////////////////////////////////////////////////////////
  34
  35
  36 #include "AliConst.h"
  37 #include "AliRun.h"
  38 #include "AliTOFConstants.h"
  39 #include "AliTOFHitMap.h"
  40 #include "AliTOFSDigit.h"
  41 #include "AliTOFhit.h"
  42 #include "AliTOFRecHit.h"
  43 #include "AliTOFPad.h"
  44 #include "AliTOFTrack.h"
  45 #include "AliTOF.h"
  46 #include "AliTOFv1.h"
  47 #include "AliTOFv2.h"
  48 #include "AliTOFv2FHoles.h"
  49 #include "AliTOFv3.h"
  50 #include "AliTOFv4.h"
  51 #include "AliTOFv4T0.h"
  52 #include "AliTOFReconstructioner.h"
  53 // this line has to be commented till TPC will provide fPx fPy fPz and fL in
  54 // AliTPChit class or somewhere
  55 // #include "../TPC/AliTPC.h"
  56 #include "AliRun.h"
  57 #include "AliDetector.h"
  58 #include "AliMC.h"
  59
  60 #include "TTask.h"
  61 #include "TBenchmark.h"
  62 #include "TTree.h"
  63 #include "TSystem.h"
  64 #include "TFile.h"
  65 #include "TParticle.h"
  66 #include <TClonesArray.h>
  67 #include "TGeant3.h"
  68 #include "TVirtualMC.h"
  69 #include <TF1.h>
  70 #include <TF2.h>
  71 #include "TROOT.h"
  72 #include "TFolder.h"
  73 #include "TNtuple.h"
  74 #include <stdlib.h>
  75 #include <iostream.h>
  76 #include <fstream.h>
  77
  78 ClassImp(AliTOFReconstructioner)
  79
  80 //____________________________________________________________________________
  81   AliTOFReconstructioner::AliTOFReconstructioner():TTask("AliTOFReconstructioner","")
  82 {
  83   // default ctor
  84   fNevents = 0 ;
  85   foutputfile  = 0;
  86   foutputntuple= 0;
  87   fZnoise  = 0;
  88   ftail    = 0;
  89 }
  90
  91 //____________________________________________________________________________
  92   AliTOFReconstructioner::AliTOFReconstructioner(char* headerFile, Option_t* opt, char *RecFile ):TTask("AliTOFReconstructioner","")
  93 {
  94   //
  95   // ctor
  96   //
  97   fNevents = 0 ;     // Number of events to reconstruct, 0 means all evens in current file
  98   foutputfile  = 0;
  99   foutputntuple= 0;
 100   fZnoise  = 0;
 101   ftail    = 0;
 102
 103   Init(opt);
 104
 105   // create output file
 106   if (RecFile){
 107     foutputfile= new TFile(RecFile,"RECREATE","root file for matching");
 108   } else {
 109     char outFileName[100];
 110     strcpy(outFileName,"match");
 111     strcat(outFileName,headerFile);
 112     foutputfile= new TFile(outFileName,"RECREATE","root file for matching");
 113   }
 114
 115   // initialize the ALIROOT geometry
 116   gAlice->Init();
 117   gAlice->Print();
 118
 119   CreateNTuple();
 120
 121   // add Task to //root/Tasks folder
 122   TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
 123   roottasks->Add(this) ;
 124 }
 125 //____________________________________________________________________________
 126 void AliTOFReconstructioner::Init(Option_t* opt)
 127 {
 128   // Initialize the AliTOFReconstructioner setting parameters for
 129   // reconstruction.
 130   // Option values: Pb-Pb for Pb-Pb events
 131   //                pp    for pp    events
 132
 133   // set common parameters
 134   fdbg=1;
 135   fNevents    = 1;
 136   fFirstEvent = 1;
 137   fLastEvent  = 1;
 138   fTimeResolution =0.120;
 139   fpadefficiency  =0.99 ;
 140   fEdgeEffect     = 2   ;
 141   fEdgeTails      = 0   ;
 142   fHparameter     = 0.4 ;
 143   fH2parameter    = 0.15;
 144   fKparameter     = 0.5 ;
 145   fK2parameter    = 0.35;
 146   fEffCenter      = fpadefficiency;
 147   fEffBoundary    = 0.65;
 148   fEff2Boundary   = 0.90;
 149   fEff3Boundary   = 0.08;
 150   fResCenter      = 50. ;
 151   fResBoundary    = 70. ;
 152   fResSlope       = 40. ;
 153   fTimeWalkCenter = 0.  ;
 154   fTimeWalkBoundary=0.  ;
 155   fTimeWalkSlope  = 0.  ;
 156   fTimeDelayFlag  = 1   ;
 157   fPulseHeightSlope=2.0 ;
 158   fTimeDelaySlope =0.060;
 159   // was fMinimumCharge = TMath::Exp(fPulseHeightSlope*fKparameter/2.);
 160   fMinimumCharge = TMath::Exp(-fPulseHeightSlope*fHparameter);
 161   fChargeSmearing=0.0   ;
 162   fLogChargeSmearing=0.13;
 163   fTimeSmearing   =0.022;
 164   fAverageTimeFlag=0    ;
 165   fChargeFactorForMatching=1;
 166   fTrackingEfficiency=1.0; // 100% TPC tracking efficiency assumed
 167   fSigmavsp = 1.        ;
 168   fSigmaZ   = 0.        ;
 169   fSigmarphi= 0.        ;
 170   fSigmap   = 0.        ;
 171   fSigmaPhi = 0.        ;
 172   fSigmaTheta=0.        ;
 173   fField    = 0.2       ;
 174   // fRadLenTPC : 0.2 includes TRD / 0.03 TPC only
 175   fRadLenTPC=0.06        ; // last value
 176   fCorrectionTRD=0.     ;
 177   fLastTPCRow=111       ;
 178   fRadiusvtxBound=50.   ; // expressed in [cm]
 179   fStep     = 0.1       ; // expressed in [cm] step during propagation of the
 180                           // track inside TOF volumes
 181   fMatchingStyle=2      ;
 182   /* previous values default
 183   fMaxPixels=70000      ;
 184   fMaxAllTracks=70000   ;
 185   fMaxTracks=15000      ;
 186   */
 187   fMaxPixels=165000      ;
 188   fMaxAllTracks=500000   ;
 189   fMaxTracks=15000      ;
 190
 191   fMaxTOFHits=35000     ;
 192   fPBound      =0.0     ; // bending effect: P_t=0.3*z*B*R , z particle charge
 193   fNoiseSlope=20.       ;
 194   // set parameters as specified in opt
 195   //pp case
 196   if(strstr(opt,"pp")){
 197   fMaxTestTracks=500    ;
 198   fNoise    = 26.       ;
 199   fNoiseMeanTof= 26.4       ; // to check
 200   }
 201   //Pb-Pb case
 202   if(strstr(opt,"Pb-Pb")){
 203   fMaxTestTracks=20     ;
 204   fNoise    = 9400.     ;
 205   fNoiseMeanTof= 26.4       ;
 206   }
 207 }
 208
 209 //____________________________________________________________________________
 210   AliTOFReconstructioner::~AliTOFReconstructioner()
 211 {
 212   //
 213   // dtor
 214   //
 215
 216   if (foutputfile)
 217     {
 218       delete foutputfile;
 219       foutputfile = 0;
 220     }
 221   if (foutputntuple)
 222     {
 223       delete foutputntuple;
 224       foutputntuple = 0;
 225     }
 226
 227   if (fZnoise)
 228     {
 229       delete fZnoise;
 230       fZnoise = 0;
 231     }
 232
 233   if (ftail)
 234     {
 235       delete ftail;
 236       ftail = 0;
 237     }
 238 }
 239
 240 //____________________________________________________________________________
 241 void AliTOFReconstructioner::CreateNTuple()
 242 {
 243   //
 244   // Create a Ntuple where information about reconstructed charged particles
 245   // (both primaries and secondaries) are stored
 246   // Variables: event ipart imam xvtx yvtx zvtx pxvtx pyvtx pzvtx time leng matc text mext
 247   // Meaning:
 248   // event - event number (0, 1, ...)
 249   // ipart - PDG code of particles
 250   // imam  - PDG code for the parent
 251   // =0 for primary particle
 252   // xvtx  - x-coordinate of the vertex (cm)
 253   // yvtx  - y-coordinate of the vertex (cm)
 254   // zvtx  - z-coordinate of the vertex (cm)
 255   // pxvtx - x-coordinate of the momentum in the vertex (GeV)
 256   // pyvtx - y-coordinate of the momentum in the vertex (GeV)
 257   // pzvtx - z-coordinate of the momentum in the vertex (GeV)
 258   // time  - time of flight from TOF for given track (ps) - TOF time for the
 259   //         first TOF hit of the track
 260   // leng  - track length to the TOF pixel (cm), evaluate as a sum of the
 261   // track length from the track vertex to TPC and the average
 262   // length of the extrapolated track from TPC to TOF.
 263   // for the track without TOF hits leng=-abs(leng)
 264   // matc  - index of the (TPC track) - (TOF pixel) matching
 265   // =0 for tracks which are not tracks for matching, i.e.
 266   // there is not hit on the TPC or Rvxt>200 cm
 267   // >0 for tracks with positive matching procedure:
 268   //   =1 or 2 for non-identified tracks:
 269   //     =1, if the corresponding pixel is not fired,
 270   //     =2, if the corresponding pixel is also matched to the
 271   //         other track,
 272   //   =3 or 4 for identified tracks:
 273   //     =3, if identified with true time,
 274   //     =4, if identified with wrong time.
 275   // <0 for tracks with negative mathing procedure:
 276   //   =-1, if track do not reach the pixel plate (curved in the
 277   //        magnetic field),
 278   //   =-2, if track is out of z-size of the TOF,
 279   //   =-3, if track is or into the RICH hole, or into the PHOS hole, or in the space between the plates,
 280   //   =-4, if track is into the dead space of the TOF.
 281   // text  - time of fligth from the matching procedure = time of the
 282   //         pixel corresponding to the track (ps)
 283   //         =0 for the tracks with matc<=1
 284   // mext  - mass of the track from the matching procedure
 285   //           =p*sqrt(900*(text/leng)**2-1), if 900*(text/leng)**2-1>=0
 286   //           =-p*sqrt(abs(900*(text/leng)**2-1)), if 900*(text/leng)**2-1<0
 287
 288   foutputntuple= new TNtuple("Ntuple","matching","event:ipart:imam:xvtx:yvtx:zvtx:pxvtx:pyvtx:pzvtx:time:leng:matc:text:mext",2000000); // buffersize set for 25 Pb-Pb events
 289 }
 290
 291 //__________________________________________________________________
 292 Double_t TimeWithTailR(Double_t* x, Double_t* par)
 293 {
 294   // sigma - par[0], alpha - par[1], part - par[2]
 295   //  at x<part*sigma - gauss
 296   //  at x>part*sigma - TMath::Exp(-x/alpha)
 297   Float_t xx =x[0];
 298   Double_t f;
 299   if(xx<par[0]*par[2]) {
 300     f = TMath::Exp(-xx*xx/(2*par[0]*par[0]));
 301   } else {
 302     f = TMath::Exp(-(xx-par[0]*par[2])/par[1]-0.5*par[2]*par[2]);
 303   }
 304   return f;
 305 }
 306
 307 //____________________________________________________________________________
 308 void AliTOFReconstructioner::Exec(const char* datafile, Option_t *option)
 309 {
 310   //
 311   // Performs reconstruction for TOF detector
 312   //
 313   gBenchmark->Start("TOFReconstruction");
 314
 315   TFile *file = TFile::Open(datafile);
 316
 317   // Get AliRun object from file or create it if not on file
 318   gAlice = (AliRun*)file->Get("gAlice");
 319
 320   AliTOF* TOF = (AliTOF *) gAlice->GetDetector ("TOF");
 321   AliDetector* TPC = gAlice->GetDetector("TPC");
 322
 323   if (!TOF) {
 324     Error("AliTOFReconstructioner","TOF not found");
 325     return;
 326   }
 327   if (!TPC) {
 328     Error("AliTOFReconstructioner","TPC Detector not found");
 329     return;
 330   }
 331
 332   if (fEdgeTails) ftail = new TF1("tail",TimeWithTailR,-2,2,3);
 333
 334   if (fNevents == 0) fNevents = (Int_t) gAlice->TreeE()->GetEntries();
 335   // You have to set the number of event with the ad hoc setter
 336   // see testrecon.C
 337
 338   for (Int_t ievent = 0; ievent < fNevents; ievent++) { // start loop on events
 339
 340     Int_t nparticles=gAlice->GetEvent(ievent);
 341     if (nparticles <= 0) return;
 342
 343     TClonesArray* tofhits=0;
 344     TClonesArray* tpchits=0;
 345
 346     if (TOF) tofhits = TOF->Hits();
 347     if (TPC) tpchits = TPC->Hits();
 348
 349     TTree *TH = gAlice->TreeH();
 350     if (!TH) return;
 351     Int_t ntracks    = (Int_t) (TH->GetEntries()); // primary tracks
 352     cout << "number of primary tracked tracks in current event " << ntracks << endl; // number of primary tracked tracks
 353     // array declaration and initialization
 354     // TOF arrays
 355     //    Int_t mapPixels[AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates][AliTOFConstants::fgkNStripC][AliTOFConstants::fgkNpadZ*AliTOFConstants::fgkNpadX];
 356
 357     Int_t *** mapPixels = new Int_t**[AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates];
 358     for (Int_t i=0; i<AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates; i++) mapPixels[i] = new Int_t*[AliTOFConstants::fgkNStripC];
 359     for (Int_t i=0; i<AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates; i++) {
 360       for (Int_t j=0; j<AliTOFConstants::fgkNStripC; j++) {
 361         mapPixels[i][j]= new Int_t[AliTOFConstants::fgkNpadZ*AliTOFConstants::fgkNpadX];
 362       }
 363     }
 364
 365
 366     // initializing the previous array
 367     for (Int_t i=0;i<AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates;i++) {
 368       for (Int_t j=0;j<AliTOFConstants::fgkNStripC;j++) {
 369         for (Int_t l=0;l<AliTOFConstants::fgkNpadZ*AliTOFConstants::fgkNpadX;l++) {
 370           mapPixels[i][j][l]=0;
 371         }
 372       }
 373     }
 374
 375     Float_t * toftime = new Float_t[fMaxAllTracks];
 376     InitArray(toftime, fMaxAllTracks);
 377     AliTOFPad* pixelArray = new AliTOFPad[fMaxPixels];
 378     Int_t* iTOFpixel        = new Int_t[fMaxAllTracks];
 379     InitArray(iTOFpixel   , fMaxAllTracks);
 380     Int_t* kTOFhitFirst     = new Int_t[fMaxAllTracks];
 381     InitArray(kTOFhitFirst, fMaxAllTracks);
 382     AliTOFRecHit* hitArray  = new AliTOFRecHit[fMaxTOFHits];
 383     Int_t isHitOnFiredPad=0; // index used to fill hitArray (array used to store informations
 384                              // about pads that contains an hit)
 385     Int_t ntotFiredPads=0;   // index used to fill array -> total number of fired pads (at least one time)
 386
 387     // TPC arrays
 388     AliTOFTrack* trackArray = new AliTOFTrack[fMaxTracks];
 389     Int_t * iparticle = new Int_t[fMaxAllTracks];
 390     InitArray(iparticle,fMaxAllTracks);
 391     Int_t * iTrackPt  = new Int_t[fMaxTracks];
 392     InitArray(iTrackPt, fMaxTracks);  // array
 393     Float_t * ptTrack = new Float_t[fMaxTracks];
 394     InitArray( ptTrack, fMaxTracks);  // array for selected track pt
 395     Int_t   ntotTPCtracks=0; // total number of selected TPC tracks
 396
 397
 398     // reading TOF hits
 399     if(TOF) ReadTOFHits(ntracks, TH, tofhits, mapPixels, kTOFhitFirst, pixelArray, iTOFpixel, toftime, hitArray,isHitOnFiredPad,ntotFiredPads);
 400     cout << "isHitOnFiredPad " << isHitOnFiredPad << " for event " << ievent << endl;
 401
 402     // start debug for adding noise
 403     // adding noise
 404     Int_t nHitsNoNoise=isHitOnFiredPad;
 405
 406
 407     if(fNoise) AddNoiseFromOuter(option,mapPixels,pixelArray,hitArray,isHitOnFiredPad,ntotFiredPads);
 408     cout << "ntotFiredPads after adding noise  " << ntotFiredPads   << " for event " << ievent << endl;
 409     // set the hitArray distance to nearest hit
 410     SetMinDistance(hitArray,nHitsNoNoise);
 411
 412     // these lines has to be commented till TPC will provide fPx fPy fPz
 413     // and fL in AliTPChit class
 414     // reading TPC hits
 415     /*
 416     if(TPC) ReadTPCHits(ntracks, TH, tpchits, iTrackPt, iparticle, ptTrack, trackArray,ntotTPCtracks);
 417     */
 418
 419     // geometrical matching
 420     if(TOF && TPC) Matching(trackArray,hitArray,mapPixels,pixelArray,kTOFhitFirst,ntotFiredPads,iTrackPt,iTOFpixel,ntotTPCtracks);
 421
 422     // fill ntuple with reconstructed particles from current event
 423     FillNtuple(ntracks,trackArray,hitArray,pixelArray,iTOFpixel,iparticle,toftime,ntotFiredPads,ntotTPCtracks);
 424
 425
 426     // free used memory
 427     delete [] toftime;
 428     delete [] pixelArray;
 429     delete [] iTOFpixel;
 430     delete [] kTOFhitFirst;
 431     delete [] hitArray;
 432     delete [] trackArray;
 433     delete [] iparticle;
 434     delete [] iTrackPt;
 435     delete [] ptTrack;
 436
 437    for (Int_t i=0; i<AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates; i++) {
 438       for (Int_t j=0; j<AliTOFConstants::fgkNStripC; j++) {
 439         delete [] mapPixels[i][j];
 440       }
 441     }
 442     for (Int_t i=0; i<AliTOFConstants::fgkNSectors*AliTOFConstants::fgkNPlates; i++) delete [] mapPixels[i];
 443
 444     delete [] mapPixels;
 445
 446   }//event loop
 447
 448   // free used memory for ftail
 449   if (ftail)
 450     {
 451       delete ftail;
 452       ftail = 0;
 453     }
 454
 455   // writing ntuple on output file
 456   foutputfile->cd();
 457   //foutputntuple->Write(0,TObject::kOverwrite);
 458   foutputntuple->Write();
 459   foutputfile->Write();
 460   foutputfile->Close();
 461
 462   gBenchmark->Stop("TOFReconstruction");
 463   cout << "AliTOFReconstructioner:" << endl ;
 464   cout << "   took " << gBenchmark->GetCpuTime("TOFReconstruction") << " seconds in order to make the reconstruction for " <<  fNevents << " events " << endl;
 465   cout <<  gBenchmark->GetCpuTime("TOFReconstruction")/fNevents << " seconds per event " << endl ;
 466   cout << endl ;
 467
 468 }
 469
 470 //__________________________________________________________________
 471 void AliTOFReconstructioner::SetRecFile(char * file )
 472 {
 473   //
 474   // Set the file name for reconstruction output
 475   //
 476   if(!fRecFile.IsNull())
 477     cout << "Changing destination file for TOF reconstruction from " <<(char *)fRecFile.Data() << " to " << file << endl ;
 478   fRecFile=file ;
 479 }
 480 //__________________________________________________________________
 481 void AliTOFReconstructioner::Print(Option_t* option)const
 482 {
 483   //
 484   // Print reconstruction output file name
 485   //
 486   cout << "------------------- "<< GetName() << " -------------" << endl ;
 487   if(fRecFile.IsNull())
 488     cout << " Writing reconstructed particles to file galice.root "<< endl ;
 489   else
 490     cout << "    Writing reconstructed particle to file  " << (char*) fRecFile.Data() << endl ;
 491
 492 }
 493
 494 //__________________________________________________________________
 495 void AliTOFReconstructioner::PrintParameters()const
 496 {
 497   //
 498   // Print parameters used for reconstruction
 499   //
 500   cout << " ------------------- "<< GetName() << " -------------" << endl ;
 501   cout << " Parameters used for TOF reconstruction " << endl ;
 502   //  Printing the parameters
 503
 504   cout << " Number of events:                        " << fNevents << endl;
 505   cout << " Recostruction from event                 "<< fFirstEvent << "  to event "<< fLastEvent << endl;
 506   cout << " TOF geometry parameters                  " << endl;
 507   cout << " Min. radius of the TOF (cm)              "<< AliTOFConstants::fgkrmin << endl;
 508   cout << " Max. radius of the TOF (cm)              "<< AliTOFConstants::fgkrmax << endl;
 509   cout << " Number of TOF geom. levels               "<< AliTOFConstants::fgkmaxtoftree<< endl;
 510   cout << " Number of TOF sectors                    "<< AliTOFConstants::fgkNSectors << endl;
 511   cout << " Number of TOF modules                    "<< AliTOFConstants::fgkNPlates << endl;
 512   cout << " Max. Number of strips in a module        "<< AliTOFConstants::fgkNStripC << endl;
 513   cout << " Number of pads per strip                 "<< AliTOFConstants::fgkNpadX*AliTOFConstants::fgkNpadZ << endl;
 514   cout << " Number of strips in central module       "<< AliTOFConstants::fgkNStripA << endl;
 515   cout << " Number of strips in intermediate modules "<< AliTOFConstants::fgkNStripB << endl;
 516   cout << " Number of strips in outer modules        "<< AliTOFConstants::fgkNStripC << endl;
 517   cout << " Number of MRPC in x strip direction      "<< AliTOFConstants::fgkNpadX<< endl;
 518   cout << " Size of MRPC (cm) along X                "<< AliTOFConstants::fgkXPad<< endl;
 519   cout << " Number of MRPC in z strip direction      "<< AliTOFConstants::fgkNpadZ<<endl;
 520   cout << " Size of MRPC (cm) along Z                "<< AliTOFConstants::fgkZPad<<endl;
 521   cout << " Module Lengths (cm)" << endl;
 522   cout << " A Module: "<< AliTOFConstants::fgkzlenA<< "  B Modules: "<< AliTOFConstants::fgkzlenB<< "  C Modules: "<< AliTOFConstants::fgkzlenC<< endl;
 523   cout << " Inner radius of the TOF detector (cm): "<<AliTOFConstants::fgkrmin << endl;
 524   cout << " Outer radius of the TOF detector (cm): "<<AliTOFConstants::fgkrmax << endl;
 525   cout << " Max. half z-size of TOF (cm)         : "<<AliTOFConstants::fgkMaxhZtof << endl;
 526   cout << " TOF Pad parameters   " << endl;
 527   cout << " Time Resolution (ns) "<< fTimeResolution <<" Pad Efficiency: "<< fpadefficiency << endl;
 528   cout << " Edge Effect option:  "<<  fEdgeEffect<< endl;
 529
 530   cout << " Boundary Effect Simulation Parameters " << endl;
 531   cout << " Hparameter: "<< fHparameter<<"  H2parameter:"<< fH2parameter <<"  Kparameter:"<< fKparameter<<"  K2parameter: "<< fK2parameter << endl;
 532   cout << " Efficiency in the central region of the pad: "<< fEffCenter << endl;
 533   cout << " Efficiency at the boundary region of the pad: "<< fEffBoundary << endl;
 534   cout << " Efficiency value at H2parameter "<< fEff2Boundary << endl;
 535   cout << " Efficiency value at K2parameter "<< fEff3Boundary << endl;
 536   cout << " Resolution (ps) in the central region of the pad: "<< fResCenter << endl;
 537   cout << " Resolution (ps) at the boundary of the pad      : "<< fResBoundary << endl;
 538   cout << " Slope (ps/K) for neighbouring pad               : "<< fResSlope <<endl;
 539   cout << " Time walk (ps) in the central region of the pad : "<< fTimeWalkCenter << endl;
 540   cout << " Time walk (ps) at the boundary of the pad       : "<< fTimeWalkBoundary<< endl;
 541   cout << " Slope (ps/K) for neighbouring pad               : "<< fTimeWalkSlope<<endl;
 542   cout << " Pulse Heigth Simulation Parameters " << endl;
 543   cout << " Flag for delay due to the PulseHeightEffect: "<< fTimeDelayFlag <<endl;
 544   cout << " Pulse Height Slope                           : "<< fPulseHeightSlope<<endl;
 545   cout << " Time Delay Slope                             : "<< fTimeDelaySlope<<endl;
 546   cout << " Minimum charge amount which could be induced : "<< fMinimumCharge<<endl;
 547   cout << " Smearing in charge in (q1/q2) vs x plot      : "<< fChargeSmearing<<endl;
 548   cout << " Smearing in log of charge ratio              : "<< fLogChargeSmearing<<endl;
 549   cout << " Smearing in time in time vs log(q1/q2) plot  : "<< fTimeSmearing<<endl;
 550   cout << " Flag for average time                        : "<< fAverageTimeFlag<<endl;
 551   cout << " Charge factor flag for matching              : "<< fChargeFactorForMatching<<endl;
 552   cout << " Edge tails option                            : "<< fEdgeTails << endl;
 553   cout << " TPC tracking  parameters " << endl;
 554   cout << " TPC tracking efficiency                      : "<< fTrackingEfficiency<< endl;
 555   cout << " Sigma vs momentum dependency flag            : "<< fSigmavsp << endl;
 556   cout << " Space uncertainties (cm). sigma(z) (cm): "<< fSigmaZ << " sigma(R(phi)) (cm): "<< fSigmarphi << endl;
 557   cout << " Momentum uncertainties.   sigma(delta(P)/P): "<< fSigmap <<" sigma(phi) (rad): "<< fSigmaPhi <<" sigma(theta) (rad): "<< fSigmaTheta << endl;
 558   cout << " Parameters for additional noise hits " << endl;
 559   cout << " Number of noise hits : " << fNoise <<" Slope parameter (ns) in the time distribution: " << fNoiseSlope << endl;
 560   cout << " Mean TOF for noise from outer regions (ns)" <<  fNoiseMeanTof << endl;
 561   cout << " Physical parameters " << endl;
 562   cout << " Magnetic Field (tesla)                   : "<< fField <<endl;
 563   cout << " Radiation length of the outer wall of TPC: "<< fRadLenTPC << endl;
 564   cout << " (TPC tracks)-(TOF pads) matching parameters " << endl;
 565   cout << " TRD Correction flag       : "<< fCorrectionTRD <<endl;
 566   cout << " Number of the last TPC row: "<< fLastTPCRow <<" Vertex radius (cm) for selected tracks: "<<fRadiusvtxBound<<endl;
 567   cout << " Max. number of test tracks: "<<fMaxTestTracks << endl;
 568   cout << " Space step (cm)           : "<< fStep <<endl;
 569   cout << " Matching style option     : "<< fMatchingStyle <<endl;
 570   cout << " Array parameters " << endl;
 571   cout << " Max.number of pads involved in the matching procedure: "<< fMaxPixels << endl;
 572   cout << " Max.number of TOF hits per event                     : "<< fMaxTOFHits<< endl;
 573   cout << " Max.number of tracks selected for matching           : "<< fMaxTracks << endl;
 574   cout << " Max.number of all tracks including the neutral ones  : "<< fMaxAllTracks<< endl;
 575   cout << " Debug Flag                                           : "<< fdbg << endl;
 576   cout << " Cut on momentum for selecting tracks                 : "<< fPBound << endl;
 577
 578 }
 579
 580 //__________________________________________________________________
 581 void AliTOFReconstructioner::IsInsideThePad(TVirtualMC *vmc, Float_t x, Float_t y, Float_t z, Int_t *nGeom, Float_t& zPad, Float_t& xPad)
 582 {
 583   //   input: x,y,z - coordinates of a hit
 584   //   output: array  nGeom[]
 585   //          nGeom[0] - the TOF sector number, 1,2,...,18 along azimuthal direction starting from -90 deg.!!!
 586   //          nGeom[1] - the TOF module number, 1,2,3,4,5=C,B,A,B,C along z-direction
 587   //          nGeom[2] - the TOF strip  number, 1,2,... along z-direction
 588   //          nGeom[3] - the TOF padz  number,  1,2=NPZ across a strip
 589   //          nGeom[4] - the TOF padx  number,  1,2,...,48=NPX along a strip
 590   //          zPad, xPad - coordinates of the hit in the pad frame
 591   //  numbering is adopted for the version 3.05 of AliRoot
 592   //  example:
 593   //   from Hits: sec,pla,str,padz,padx=4,2,14,2,35
 594   //  Vol. n.0: ALIC, copy number 1
 595   //  Vol. n.1: B077, copy number 1
 596   //  Vol. n.2: B074, copy number 5
 597   //  Vol. n.3: BTO2, copy number 1
 598   //  Vol. n.4: FTOB, copy number 2
 599   //  Vol. n.5: FLTB, copy number 0
 600   //  Vol. n.6: FSTR, copy number 14
 601   //  Vol. n.7: FSEN, copy number 0
 602   //  Vol. n.8: FSEZ, copy number 2
 603   //  Vol. n.9: FSEX, copy number 35
 604   //  Vol. n.10: FPAD, copy number 0
 605
 606
 607   Float_t xTOF[3];
 608   Int_t sector=0,module=0,strip=0,padz=0,padx=0;
 609   Int_t i,numed,nLevel,copyNumber;
 610   Gcvolu_t* gcvolu;
 611   char name[5];
 612   name[4]=0;
 613
 614   for (i=0; i<AliTOFConstants::fgkmaxtoftree; i++) nGeom[i]=0;
 615   zPad=100.;
 616   xPad=100.;
 617
 618   xTOF[0]=x;
 619   xTOF[1]=y;
 620   xTOF[2]=z;
 621
 622   TGeant3 * g3 = (TGeant3*) vmc;
 623
 624   g3->Gmedia(xTOF, numed);
 625   gcvolu=g3->Gcvolu();
 626   nLevel=gcvolu->nlevel;
 627   if(fdbg) {
 628     for (Int_t i=0; i<nLevel; i++) {
 629       strncpy(name,(char*) (&gcvolu->names[i]),4);
 630       cout<<"Vol. n."<<i<<": "<<name<<", copy number "<<gcvolu->number[i]<<endl;
 631     }
 632   }
 633   if(nLevel>=2) {
 634     // sector type name: B071(1,2,...,10),B074(1,2,3,4,5-PHOS),B075(1,2,3-RICH)
 635     strncpy(name,(char*) (&gcvolu->names[2]),4);
 636     // volume copy: 1,2,...,10 for B071, 1,2,3,4,5 for B074, 1,2,3 for B075
 637     copyNumber=gcvolu->number[2];
 638    if(!strcmp(name,"B071")) {
 639      if (copyNumber>=6 && copyNumber<=8) {
 640        sector=copyNumber+10;
 641      } else if (copyNumber>=1 && copyNumber<=5){
 642        sector=copyNumber+7;
 643      } else {
 644        sector=copyNumber-8;
 645      }
 646    } else if(!strcmp(name,"B075")) {
 647      sector=copyNumber+12;
 648    } else if(!strcmp(name,"B074")) {
 649      if (copyNumber>=1 && copyNumber<=3){
 650        sector=copyNumber+4;
 651      } else {
 652        sector=copyNumber-1;
 653      }
 654    }
 655   }
 656   if(sector) {
 657     nGeom[0]=sector;
 658     if(nLevel>=4) {
 659       // we'll use the module value in z-direction:
 660       //                                    1    2    3    4    5
 661       // the module order in z-direction: FTOC,FTOB,FTOA,FTOB,FTOC
 662       // the module copy:                   2    2    0    1    1
 663       // module type name: FTOA, FTOB, FTOC
 664       strncpy(name,(char*) (&gcvolu->names[4]),4);
 665       // module copy:
 666       copyNumber=gcvolu->number[4];
 667       if(!strcmp(name,"FTOC")) {
 668         if (copyNumber==2) {
 669           module=1;
 670         } else {
 671           module=5;
 672         }
 673       } else if(!strcmp(name,"FTOB")) {
 674         if (copyNumber==2) {
 675           module=2;
 676         } else {
 677           module=4;
 678         }
 679       } else if(!strcmp(name,"FTOA")) {
 680         module=3;
 681       }
 682     }
 683   }
 684
 685   if(module) {
 686     nGeom[1]=module;
 687     if(nLevel>=6) {
 688       // strip type name: FSTR
 689       strncpy(name,(char*) (&gcvolu->names[6]),4);
 690       // strip copy:
 691       copyNumber=gcvolu->number[6];
 692       if(!strcmp(name,"FSTR")) strip=copyNumber;
 693     }
 694   }
 695
 696   if(strip) {
 697     nGeom[2]=strip;
 698     if(nLevel>=8) {
 699       // padz type name: FSEZ
 700       strncpy(name,(char*) (&gcvolu->names[8]),4);
 701       // padz copy:
 702       copyNumber=gcvolu->number[8];
 703       if(!strcmp(name,"FSEZ")) padz=copyNumber;
 704     }
 705   }
 706   if(padz) {
 707     nGeom[3]=padz;
 708     if(nLevel>=9) {
 709       // padx type name: FSEX
 710       strncpy(name,(char*) (&gcvolu->names[9]),4);
 711       // padx copy:
 712       copyNumber=gcvolu->number[9];
 713       if(!strcmp(name,"FSEX")) padx=copyNumber;
 714     }
 715   }
 716
 717   if(padx) {
 718     nGeom[4]=padx;
 719     zPad=gcvolu->glx[2];  // check here
 720     xPad=gcvolu->glx[0];  // check here
 721   }
 722
 723   //   printf(" nGeom[0,1,2,3,4]=%i,%i,%i,%i,%i\n",nGeom[0],nGeom[1],nGeom[2],nGeom[3],nGeom[4]);
 724 }
 725
 726 //__________________________________________________________________
 727 void AliTOFReconstructioner::EpMulScatt(Float_t& px, Float_t& py, Float_t& pz, Float_t& p, Float_t& theta)
 728 {
 729   //   Momentum p  - before mult.scat.
 730   //   Momentum p2 - after mult.scat.
 731   //   THE0 - r.m.s. of deviation angle in plane
 732   //           (see RPP'96: Phys.Rev.D54 (1996) 134)
 733
 734   Float_t pt,thex,they,tantx,tanty,p2px,p2py,p2pz,costhe,sinthe,cospsi,sinpsi,p2x,p2y,p2z,p2,g;
 735
 736   pt=TMath::Sqrt(px*px+py*py);
 737   //   angles for p in the ' frame with Z'along p
 738   if(fMatchingStyle==1) {
 739     thex=theta*gRandom->Gaus();
 740     they=theta*gRandom->Gaus();
 741   } else {
 742     thex=3*(-theta+2*theta*gRandom->Rndm());
 743     they=3*(-theta+2*theta*gRandom->Rndm());
 744   }
 745   tantx=TMath::Tan(thex);
 746   tanty=TMath::Tan(they);
 747
 748   //   p2p - p2 in the ' frame
 749   p2pz=p/TMath::Sqrt(1.+tantx*tantx+tanty*tanty);
 750   p2py=p2pz*tanty;
 751   p2px=p2pz*tantx;
 752   //   choose X'so that PHI=0 (see Il'in, Pozdnyak Analiticheskaya geometriya, 1968, c.88
 753   //   for Euler angles PSI, THETA (PHI=0)
 754   costhe=pz/p;
 755   sinthe=pt/p;
 756   cospsi=-py/pt;
 757   sinpsi=px/pt;
 758   //
 759   g=p2py*costhe-p2pz*sinthe;
 760   p2x=p2px*cospsi-g*sinpsi;
 761   p2y=p2px*sinpsi+g*cospsi;
 762   p2z=p2py*sinthe+p2pz*costhe;
 763   p2=TMath::Sqrt(p2x*p2x+p2y*p2y+p2z*p2z);
 764
 765   //   Test angle
 766   g=(px*p2x+py*p2y+pz*p2z)/(p*p2);
 767   if(g>1) g=1;
 768   theta=TMath::ACos(g);
 769   px=p2x;
 770   py=p2y;
 771   pz=p2z;
 772   p=p2;
 773
 774 }
 775
 776 // std border effect algorithm
 777 //__________________________________________________________________
 778 void AliTOFReconstructioner::BorderEffect(Float_t z0, Float_t x0, Float_t geantTime, Int_t& nActivatedPads, Int_t& nFiredPads, Bool_t* isFired, Int_t* nPlace, Float_t* qInduced, Float_t* tofTime, Float_t& averageTime)
 779 {
 780   // Input:  z0, x0 - hit position in the strip system (0,0 - center of the strip), cm
 781   //         geantTime - time generated by Geant, ns
 782   // Output: nActivatedPads - the number of pads activated by the hit (1 || 2 || 4)
 783   //         nFiredPads - the number of pads fired (really activated) by the hit (nFiredPads <= nActivatedPads)
 784   //         qInduced[iPad]- charge induced on pad, arb. units
 785   //                         this array is initialized at zero by the caller
 786   //         tofAfterSimul[iPad] - time calculated with edge effect algorithm, ns
 787   //                                   this array is initialized at zero by the caller
 788   //         averageTime - time given by pad hited by the Geant track taking into account the times (weighted) given by the pads fired for edge effect also.
 789   //                       The weight is given by the qInduced[iPad]/qCenterPad
 790   //                                   this variable is initialized at zero by the caller
 791   //         nPlace[iPad] - the number of the pad place, iPad = 0, 1, 2, 3
 792   //                                   this variable is initialized at zero by the caller
 793   //
 794   // Description of used variables:
 795   //         eff[iPad] - efficiency of the pad
 796   //         res[iPad] - resolution of the pad, ns
 797   //         timeWalk[iPad] - time walk of the pad, ns
 798   //         timeDelay[iPad] - time delay for neighbouring pad to hited pad, ns
 799   //         PadId[iPad] - Pad Identifier
 800   //                    E | F    -->   PadId[iPad] = 5 | 6
 801   //                    A | B    -->   PadId[iPad] = 1 | 2
 802   //                    C | D    -->   PadId[iPad] = 3 | 4
 803   //         nTail[iPad] - the tail number, = 1 for tailA, = 2 for tailB
 804   //         qCenterPad - charge extimated for each pad, arb. units
 805   //         weightsSum - sum of weights extimated for each pad fired, arb. units
 806
 807   const Float_t kSigmaForTail[2] = {AliTOFConstants::fgkSigmaForTail1,AliTOFConstants::fgkSigmaForTail2}; //for tail
 808   Int_t iz = 0, ix = 0;
 809   Float_t dX = 0., dZ = 0., x = 0., z = 0.;
 810   Float_t h = fHparameter, h2 = fH2parameter, k = fKparameter, k2 = fK2parameter;
 811   Float_t effX = 0., effZ = 0., resX = 0., resZ = 0., timeWalkX = 0., timeWalkZ = 0.;
 812   Float_t logOfqInd = 0.;
 813   Float_t weightsSum = 0.;
 814   Int_t nTail[4]  = {0,0,0,0};
 815   Int_t padId[4]  = {0,0,0,0};
 816   Float_t eff[4]  = {0.,0.,0.,0.};
 817   Float_t res[4]  = {0.,0.,0.,0.};
 818   //  Float_t qCenterPad = fMinimumCharge * fMinimumCharge;
 819   Float_t qCenterPad = 1.;
 820   Float_t timeWalk[4]  = {0.,0.,0.,0.};
 821   Float_t timeDelay[4] = {0.,0.,0.,0.};
 822
 823   nActivatedPads = 0;
 824   nFiredPads = 0;
 825
 826   (z0 <= 0) ? iz = 0 : iz = 1;
 827   dZ = z0 + (0.5 * AliTOFConstants::fgkNpadZ - iz - 0.5) * AliTOFConstants::fgkZPad; // hit position in the pad frame, (0,0) - center of the pad
 828   z = 0.5 * AliTOFConstants::fgkZPad - TMath::Abs(dZ);                               // variable for eff., res. and timeWalk. functions
 829   iz++;                                                                              // z row: 1, ..., AliTOFConstants::fgkNpadZ = 2
 830   ix = (Int_t)((x0 + 0.5 * AliTOFConstants::fgkNpadX * AliTOFConstants::fgkXPad) / AliTOFConstants::fgkXPad);
 831   dX = x0 + (0.5 * AliTOFConstants::fgkNpadX - ix - 0.5) * AliTOFConstants::fgkXPad; // hit position in the pad frame, (0,0) - center of the pad
 832   x = 0.5 * AliTOFConstants::fgkXPad - TMath::Abs(dX);                               // variable for eff., res. and timeWalk. functions;
 833   ix++;                                                                              // x row: 1, ..., AliTOFConstants::fgkNpadX = 48
 834
 835   ////// Pad A:
 836   nActivatedPads++;
 837   nPlace[nActivatedPads-1] = (iz - 1) * AliTOFConstants::fgkNpadX + ix;
 838   qInduced[nActivatedPads-1] = qCenterPad;
 839   padId[nActivatedPads-1] = 1;
 840
 841   if (fEdgeEffect == 0) {
 842     eff[nActivatedPads-1] = fEffCenter;
 843     if (gRandom->Rndm() < eff[nActivatedPads-1]) {
 844       nFiredPads = 1;
 845       res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + fResCenter * fResCenter); // 10400=30^2+20^2+40^2+50^2+50^2+50^2  ns;
 846       isFired[nActivatedPads-1] = kTRUE;
 847       tofTime[nActivatedPads-1] = gRandom->Gaus(geantTime + fTimeWalkCenter, res[0]);
 848       averageTime = tofTime[nActivatedPads-1];
 849     }
 850   } else {
 851
 852     if(z < h) {
 853       if(z < h2) {
 854         effZ = fEffBoundary + (fEff2Boundary - fEffBoundary) * z / h2;
 855       } else {
 856         effZ = fEff2Boundary + (fEffCenter - fEff2Boundary) * (z - h2) / (h - h2);
 857       }
 858       resZ = fResBoundary + (fResCenter - fResBoundary) * z / h;
 859       timeWalkZ = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * z / h;
 860       nTail[nActivatedPads-1] = 1;
 861     } else {
 862       effZ = fEffCenter;
 863       resZ = fResCenter;
 864       timeWalkZ = fTimeWalkCenter;
 865     }
 866
 867     if(x < h) {
 868       if(x < h2) {
 869         effX = fEffBoundary + (fEff2Boundary - fEffBoundary) * x / h2;
 870       } else {
 871         effX = fEff2Boundary + (fEffCenter - fEff2Boundary) * (x - h2) / (h - h2);
 872       }
 873       resX = fResBoundary + (fResCenter - fResBoundary) * x / h;
 874       timeWalkX = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * x / h;
 875       nTail[nActivatedPads-1] = 1;
 876     } else {
 877       effX = fEffCenter;
 878       resX = fResCenter;
 879       timeWalkX = fTimeWalkCenter;
 880     }
 881
 882     (effZ<effX) ? eff[nActivatedPads-1] = effZ : eff[nActivatedPads-1] = effX;
 883     (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2  ns
 884     (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 *  timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
 885
 886
 887     ////// Pad B:
 888     if(z < k2) {
 889       effZ = fEffBoundary - (fEffBoundary - fEff3Boundary) * (z / k2);
 890     } else {
 891       effZ = fEff3Boundary * (k - z) / (k - k2);
 892     }
 893     resZ = fResBoundary + fResSlope * z / k;
 894     timeWalkZ = fTimeWalkBoundary + fTimeWalkSlope * z / k;
 895
 896     if(z < k && z > 0) {
 897       if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
 898         nActivatedPads++;
 899         nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX;
 900         eff[nActivatedPads-1] = effZ;
 901         res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
 902         timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ; // ns
 903         nTail[nActivatedPads-1] = 2;
 904         if (fTimeDelayFlag) {
 905           //      qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
 906           //      qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
 907           qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z);
 908           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
 909           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
 910         } else {
 911           timeDelay[nActivatedPads-1] = 0.;
 912         }
 913         padId[nActivatedPads-1] = 2;
 914       }
 915     }
 916
 917
 918     ////// Pad C, D, E, F:
 919     if(x < k2) {
 920       effX = fEffBoundary - (fEffBoundary - fEff3Boundary) * (x / k2);
 921     } else {
 922       effX = fEff3Boundary * (k - x) / (k - k2);
 923     }
 924     resX = fResBoundary + fResSlope*x/k;
 925     timeWalkX = fTimeWalkBoundary + fTimeWalkSlope*x/k;
 926
 927     if(x < k && x > 0) {
 928       //   C:
 929       if(ix > 1 && dX < 0) {
 930         nActivatedPads++;
 931         nPlace[nActivatedPads-1] = nPlace[0] - 1;
 932         eff[nActivatedPads-1] = effX;
 933         res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
 934         timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
 935         nTail[nActivatedPads-1] = 2;
 936         if (fTimeDelayFlag) {
 937           //      qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
 938           //      qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
 939           qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x);
 940           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
 941           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
 942         } else {
 943           timeDelay[nActivatedPads-1] = 0.;
 944         }
 945         padId[nActivatedPads-1] = 3;
 946
 947         //     D:
 948         if(z < k && z > 0) {
 949           if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
 950             nActivatedPads++;
 951             nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX - 1;
 952             eff[nActivatedPads-1] = effX * effZ;
 953             (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
 954             (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
 955
 956             nTail[nActivatedPads-1] = 2;
 957             if (fTimeDelayFlag) {
 958               if (TMath::Abs(x) < TMath::Abs(z)) {
 959                 //              qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
 960                 //              qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
 961                 qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z);
 962                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
 963               } else {
 964                 //              qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
 965                 //              qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
 966                 qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x);
 967                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
 968               }
 969               timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
 970             } else {
 971               timeDelay[nActivatedPads-1] = 0.;
 972             }
 973             padId[nActivatedPads-1] = 4;
 974           }
 975         }  // end D
 976       }  // end C
 977
 978       //   E:
 979       if(ix < AliTOFConstants::fgkNpadX && dX > 0) {
 980         nActivatedPads++;
 981         nPlace[nActivatedPads-1] = nPlace[0] + 1;
 982         eff[nActivatedPads-1] = effX;
 983         res[nActivatedPads-1] = 0.001 * (TMath::Sqrt(10400 + resX * resX)); // ns
 984         timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
 985         nTail[nActivatedPads-1] = 2;
 986         if (fTimeDelayFlag) {
 987           //      qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
 988           //      qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
 989           qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x);
 990           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
 991           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
 992         } else {
 993           timeDelay[nActivatedPads-1] = 0.;
 994         }
 995         padId[nActivatedPads-1] = 5;
 996
 997
 998         //     F:
 999         if(z < k && z > 0) {
1000           if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
1001             nActivatedPads++;
1002             nPlace[nActivatedPads - 1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX + 1;
1003             eff[nActivatedPads - 1] = effX * effZ;
1004             (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
1005             (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001*timeWalkX; // ns
1006             nTail[nActivatedPads-1] = 2;
1007             if (fTimeDelayFlag) {
1008               if (TMath::Abs(x) < TMath::Abs(z)) {
1009                 //              qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
1010                 //              qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
1011                 qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z);
1012                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
1013               } else {
1014                 //              qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
1015                 //              qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
1016                 qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x);
1017                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
1018               }
1019               timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1020             } else {
1021               timeDelay[nActivatedPads-1] = 0.;
1022             }
1023             padId[nActivatedPads-1] = 6;
1024           }
1025         }  // end F
1026       }  // end E
1027     } // end if(x < k)
1028
1029
1030     for (Int_t iPad = 0; iPad < nActivatedPads; iPad++) {
1031       if (res[iPad] < fTimeResolution) res[iPad] = fTimeResolution;
1032       if(gRandom->Rndm() < eff[iPad]) {
1033         isFired[iPad] = kTRUE;
1034         nFiredPads++;
1035         if(fEdgeTails) {
1036           if(nTail[iPad] == 0) {
1037             tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]);
1038           } else {
1039             ftail->SetParameters(res[iPad], 2. * res[iPad], kSigmaForTail[nTail[iPad]-1]);
1040             Double_t timeAB = ftail->GetRandom();
1041             tofTime[iPad] = geantTime + timeWalk[iPad] + timeDelay[iPad] + timeAB;
1042           }
1043         } else {
1044           tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]);
1045         }
1046         if (fAverageTimeFlag) {
1047           averageTime += tofTime[iPad] * qInduced[iPad];
1048           weightsSum += qInduced[iPad];
1049         } else {
1050           averageTime += tofTime[iPad];
1051           weightsSum += 1.;
1052         }
1053       }
1054     }
1055     if (weightsSum!=0) averageTime /= weightsSum;
1056   } // end else (fEdgeEffect != 0)
1057 }
1058
1059
1060 /* new algorithm (to be checked)
1061 //__________________________________________________________________
1062 void AliTOFReconstructioner::BorderEffect(Float_t z0, Float_t x0, Float_t geantTime, Int_t& nActivatedPads, Int_t& nFiredPads, Bool_t* isFired, Int_t* nPlace, Float_t* qInduced, Float_t* tofTime, Float_t& averageTime)
1063 {
1064   // Input:  z0, x0 - hit position in the strip system (0,0 - center of the strip), cm
1065   //         geantTime - time generated by Geant, ns
1066   // Output: nActivatedPads - the number of pads activated by the hit (1 || 2 || 4)
1067   //         nFiredPads - the number of pads fired (really activated) by the hit (nFiredPads <= nActivatedPads)
1068   //         qInduced[iPad]- charge induced on pad, arb. units
1069   //                         this array is initialized at zero by the caller
1070   //         tofAfterSimul[iPad] - time calculated with edge effect algorithm, ns
1071   //                                   this array is initialized at zero by the caller
1072   //         averageTime - time given by pad hited by the Geant track taking into account the times (weighted) given by the pads fired for edge effect also.
1073   //                       The weight is given by the qInduced[iPad]/qCenterPad
1074   //                                   this variable is initialized at zero by the caller
1075   //         nPlace[iPad] - the number of the pad place, iPad = 0, 1, 2, 3
1076   //                                   this variable is initialized at zero by the caller
1077   //
1078   // Description of used variables:
1079   //         eff[iPad] - efficiency of the pad
1080   //         res[iPad] - resolution of the pad, ns
1081   //         timeWalk[iPad] - time walk of the pad, ns
1082   //         timeDelay[iPad] - time delay for neighbouring pad to hited pad, ns
1083   //         PadId[iPad] - Pad Identifier
1084   //                    E | F    -->   PadId[iPad] = 5 | 6
1085   //                    A | B    -->   PadId[iPad] = 1 | 2
1086   //                    C | D    -->   PadId[iPad] = 3 | 4
1087   //         nTail[iPad] - the tail number, = 1 for tailA, = 2 for tailB
1088   //         qCenterPad - charge extimated for each pad, arb. units
1089   //         weightsSum - sum of weights extimated for each pad fired, arb. units
1090
1091   const Float_t kSigmaForTail[2] = {AliTOFConstants::fgkSigmaForTail1,AliTOFConstants::fgkSigmaForTail2}; //for tail
1092   Int_t iz = 0, ix = 0;
1093   Float_t dX = 0., dZ = 0., x = 0., z = 0.;
1094   Float_t h = fHparameter, h2 = fH2parameter, k = fKparameter, k2 = fK2parameter;
1095   Float_t effX = 0., effZ = 0., resX = 0., resZ = 0., timeWalkX = 0., timeWalkZ = 0.;
1096   Float_t logOfqInd = 0.;
1097   Float_t weightsSum = 0.;
1098   Int_t nTail[4]  = {0,0,0,0};
1099   Int_t padId[4]  = {0,0,0,0};
1100   Float_t eff[4]  = {0.,0.,0.,0.};
1101   Float_t res[4]  = {0.,0.,0.,0.};
1102   Float_t qCenterPad = fMinimumCharge * fMinimumCharge;
1103   Float_t timeWalk[4]  = {0.,0.,0.,0.};
1104   Float_t timeDelay[4] = {0.,0.,0.,0.};
1105
1106   nActivatedPads = 0;
1107   nFiredPads = 0;
1108
1109   (z0 <= 0) ? iz = 0 : iz = 1;
1110   dZ = z0 + (0.5 * AliTOFConstants::fgkNpadZ - iz - 0.5) * AliTOFConstants::fgkZPad; // hit position in the pad frame, (0,0) - center of the pad
1111   z = 0.5 * AliTOFConstants::fgkZPad - TMath::Abs(dZ);                               // variable for eff., res. and timeWalk. functions
1112   iz++;                                                                              // z row: 1, ..., AliTOFConstants::fgkNpadZ = 2
1113   ix = (Int_t)((x0 + 0.5 * AliTOFConstants::fgkNpadX * AliTOFConstants::fgkXPad) / AliTOFConstants::fgkXPad);
1114   dX = x0 + (0.5 * AliTOFConstants::fgkNpadX - ix - 0.5) * AliTOFConstants::fgkXPad; // hit position in the pad frame, (0,0) - center of the pad
1115   x = 0.5 * AliTOFConstants::fgkXPad - TMath::Abs(dX);                               // variable for eff., res. and timeWalk. functions;
1116   ix++;                                                                              // x row: 1, ..., AliTOFConstants::fgkNpadX = 48
1117
1118   ////// Pad A:
1119   nActivatedPads++;
1120   nPlace[nActivatedPads-1] = (iz - 1) * AliTOFConstants::fgkNpadX + ix;
1121   qInduced[nActivatedPads-1] = qCenterPad;
1122   padId[nActivatedPads-1] = 1;
1123
1124   if (fEdgeEffect == 0) {
1125     eff[nActivatedPads-1] = fEffCenter;
1126     if (gRandom->Rndm() < eff[nActivatedPads-1]) {
1127       nFiredPads = 1;
1128       res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + fResCenter * fResCenter); // 10400=30^2+20^2+40^2+50^2+50^2+50^2  ns;
1129       isFired[nActivatedPads-1] = kTRUE;
1130       tofTime[nActivatedPads-1] = gRandom->Gaus(geantTime + fTimeWalkCenter, res[0]);
1131       averageTime = tofTime[nActivatedPads-1];
1132     }
1133   } else {
1134
1135     if(z < h) {
1136       if(z < h2) {
1137         effZ = fEffBoundary + (fEff2Boundary - fEffBoundary) * z / h2;
1138       } else {
1139         effZ = fEff2Boundary + (fEffCenter - fEff2Boundary) * (z - h2) / (h - h2);
1140       }
1141       resZ = fResBoundary + (fResCenter - fResBoundary) * z / h;
1142       timeWalkZ = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * z / h;
1143       nTail[nActivatedPads-1] = 1;
1144     } else {
1145       effZ = fEffCenter;
1146       resZ = fResCenter;
1147       timeWalkZ = fTimeWalkCenter;
1148     }
1149
1150     if(x < h) {
1151       if(x < h2) {
1152         effX = fEffBoundary + (fEff2Boundary - fEffBoundary) * x / h2;
1153       } else {
1154         effX = fEff2Boundary + (fEffCenter - fEff2Boundary) * (x - h2) / (h - h2);
1155       }
1156       resX = fResBoundary + (fResCenter - fResBoundary) * x / h;
1157       timeWalkX = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * x / h;
1158       nTail[nActivatedPads-1] = 1;
1159     } else {
1160       effX = fEffCenter;
1161       resX = fResCenter;
1162       timeWalkX = fTimeWalkCenter;
1163     }
1164
1165     (effZ<effX) ? eff[nActivatedPads-1] = effZ : eff[nActivatedPads-1] = effX;
1166     (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2  ns
1167     (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 *  timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
1168
1169
1170     ////// Pad B:
1171     if(z < k2) {
1172       effZ = fEffBoundary - (fEffBoundary - fEff3Boundary) * (z / k2);
1173     } else {
1174       effZ = fEff3Boundary * (k - z) / (k - k2);
1175     }
1176     resZ = fResBoundary + fResSlope * z / k;
1177     timeWalkZ = fTimeWalkBoundary + fTimeWalkSlope * z / k;
1178
1179     if(z < k && z > 0) {
1180       if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
1181         nActivatedPads++;
1182         nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX;
1183         eff[nActivatedPads-1] = effZ;
1184         res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
1185         timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ; // ns
1186         nTail[nActivatedPads-1] = 2;
1187         if (fTimeDelayFlag) {
1188           qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
1189           qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
1190           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
1191           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1192         } else {
1193           timeDelay[nActivatedPads-1] = 0.;
1194         }
1195         padId[nActivatedPads-1] = 2;
1196       }
1197     }
1198
1199
1200     ////// Pad C, D, E, F:
1201     if(x < k2) {
1202       effX = fEffBoundary - (fEffBoundary - fEff3Boundary) * (x / k2);
1203     } else {
1204       effX = fEff3Boundary * (k - x) / (k - k2);
1205     }
1206     resX = fResBoundary + fResSlope*x/k;
1207     timeWalkX = fTimeWalkBoundary + fTimeWalkSlope*x/k;
1208
1209     if(x < k && x > 0) {
1210       //   C:
1211       if(ix > 1 && dX < 0) {
1212         nActivatedPads++;
1213         nPlace[nActivatedPads-1] = nPlace[0] - 1;
1214         eff[nActivatedPads-1] = effX;
1215         res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
1216         timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
1217         nTail[nActivatedPads-1] = 2;
1218         if (fTimeDelayFlag) {
1219           qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
1220           qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
1221           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
1222           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1223         } else {
1224           timeDelay[nActivatedPads-1] = 0.;
1225         }
1226         padId[nActivatedPads-1] = 3;
1227
1228         //     D:
1229         if(z < k && z > 0) {
1230           if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
1231             nActivatedPads++;
1232             nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX - 1;
1233             eff[nActivatedPads-1] = effX * effZ;
1234             (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
1235             (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
1236
1237             nTail[nActivatedPads-1] = 2;
1238             if (fTimeDelayFlag) {
1239               if (TMath::Abs(x) < TMath::Abs(z)) {
1240                 qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
1241                 qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
1242                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
1243               } else {
1244                 qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
1245                 qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
1246                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
1247               }
1248               timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1249             } else {
1250               timeDelay[nActivatedPads-1] = 0.;
1251             }
1252             padId[nActivatedPads-1] = 4;
1253           }
1254         }  // end D
1255       }  // end C
1256
1257       //   E:
1258       if(ix < AliTOFConstants::fgkNpadX && dX > 0) {
1259         nActivatedPads++;
1260         nPlace[nActivatedPads-1] = nPlace[0] + 1;
1261         eff[nActivatedPads-1] = effX;
1262         res[nActivatedPads-1] = 0.001 * (TMath::Sqrt(10400 + resX * resX)); // ns
1263         timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns
1264         nTail[nActivatedPads-1] = 2;
1265         if (fTimeDelayFlag) {
1266           qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
1267           qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
1268           logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
1269           timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1270         } else {
1271           timeDelay[nActivatedPads-1] = 0.;
1272         }
1273         padId[nActivatedPads-1] = 5;
1274
1275
1276         //     F:
1277         if(z < k && z > 0) {
1278           if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) {
1279             nActivatedPads++;
1280             nPlace[nActivatedPads - 1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX + 1;
1281             eff[nActivatedPads - 1] = effX * effZ;
1282             (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns
1283             (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001*timeWalkX; // ns
1284             nTail[nActivatedPads-1] = 2;
1285             if (fTimeDelayFlag) {
1286               if (TMath::Abs(x) < TMath::Abs(z)) {
1287                 qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.);
1288                 qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.);
1289                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing);
1290               } else {
1291                 qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.);
1292                 qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.);
1293                 logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing);
1294               }
1295               timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing);
1296             } else {
1297               timeDelay[nActivatedPads-1] = 0.;
1298             }
1299             padId[nActivatedPads-1] = 6;
1300           }
1301         }  // end F
1302       }  // end E
1303     } // end if(x < k)
1304
1305
1306     for (Int_t iPad = 0; iPad < nActivatedPads; iPad++) {
1307       if (res[iPad] < fTimeResolution) res[iPad] = fTimeResolution;
1308       if(gRandom->Rndm() < eff[iPad]) {
1309         isFired[iPad] = kTRUE;
1310         nFiredPads++;
1311         if(fEdgeTails) {
1312           if(nTail[iPad] == 0) {
1313             tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]);
1314           } else {
1315             ftail->SetParameters(res[iPad], 2. * res[iPad], kSigmaForTail[nTail[iPad]-1]);
1316             Double_t timeAB = ftail->GetRandom();
1317             tofTime[iPad] = geantTime + timeWalk[iPad] + timeDelay[iPad] + timeAB;
1318           }
1319         } else {
1320           tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]);
1321         }
1322         if (fAverageTimeFlag) {
1323           averageTime += tofTime[iPad] * qInduced[iPad];
1324           weightsSum += qInduced[iPad];
1325         } else {
1326           averageTime += tofTime[iPad];
1327           weightsSum += 1.;
1328         }
1329       }
1330     }
1331     if (weightsSum!=0) averageTime /= weightsSum;
1332
1333   } // end else (fEdgeEffect != 0)
1334
1335   //cout << "timedelay " << timeDelay[0] << endl;
1336   //cout << "timedelay " << timeDelay[1] << endl;
1337   //cout << "timedelay " << timeDelay[2] << endl;
1338   //cout << "timedelay " << timeDelay[3] << endl;
1339
1340 }
1341 */
1342
1343
1344 //__________________________________________________________________
1345 Int_t AliTOFReconstructioner::PDGtoGeantCode(Int_t pdgcode)
1346 {
1347   //
1348   // Gives the GEANT code from KF code of LUND JETSET
1349   //
1350   Int_t geantCode=0; // default value
1351   switch (pdgcode) {
1352   case 22:
1353     geantCode=1;            // GAMMA
1354     break ;
1355   case -11:
1356     geantCode=2;            // E+
1357     break ;
1358   case 11:
1359     geantCode=3;            // E-
1360     break ;
1361   case 12:
1362     geantCode=4;            // NUE
1363     break ;
1364   case 14:
1365     geantCode=4;            // NUMU
1366     break ;
1367   case -13:
1368     geantCode=5;            // MU+
1369     break ;
1370   case 13:
1371     geantCode=6;            // MU-
1372     break ;
1373   case 111:
1374     geantCode=7;            // PI0
1375     break ;
1376   case 211:
1377     geantCode=8;            // PI+
1378     break ;
1379   case -211:
1380     geantCode=9;            // PI-
1381     break ;
1382   case 130:
1383     geantCode=10;           // K_L0
1384     break ;
1385   case 321:
1386     geantCode=11;           // K+
1387     break ;
1388   case -321:
1389     geantCode=12;           // K-
1390     break ;
1391   case 2112:
1392     geantCode=13;           // N0
1393     break ;
1394   case 2212:
1395     geantCode=14;           // P+
1396     break ;
1397   case -2212:
1398     geantCode=15;           // P~-
1399     break ;
1400   case 310:
1401     geantCode=16;           // K_S0
1402     break ;
1403   case 221:
1404     geantCode=17;           // ETA
1405     break ;
1406   case 3122:
1407     geantCode=18;           // LAMBDA0
1408     break ;
1409   case 3222:
1410     geantCode=19;           // SIGMA+
1411     break ;
1412   case 3212:
1413     geantCode=20;           // SIGMA0
1414     break ;
1415   case 3112:
1416     geantCode=21;           // SIGMA-
1417     break ;
1418   case 3322:
1419     geantCode=22;           // XI0
1420     break ;
1421   case 3312:
1422     geantCode=23;           // XI-
1423     break ;
1424   case 3334:
1425     geantCode=24;           // OMEGA-
1426     break ;
1427   case -2112:
1428     geantCode=25;           // N~0
1429     break ;
1430   case -3122:
1431     geantCode=26;           // LAMBDA~0
1432     break ;
1433   case -3112:
1434     geantCode=27;           // SIGMA~+
1435     break ;
1436   case -3212:
1437     geantCode=28;           // SIGMA~0
1438     break ;
1439   case -3222:
1440     geantCode=29;           // SIGMA~-
1441     break ;
1442   case -3322:
1443     geantCode=30;           // XI~0
1444     break ;
1445   case -3312:
1446     geantCode=31;           // XI~+
1447     break ;
1448   case -3334:
1449     geantCode=32;           // OMEGA~+
1450     break ;
1451   case 223:
1452     geantCode=33;           // OMEGA(782)
1453     break ;
1454   case 333:
1455     geantCode=34;           // PHI(1020)
1456     break ;
1457   case 411:
1458     geantCode=35;           // D+
1459     break ;
1460   case -411:
1461     geantCode=36;           // D-
1462     break ;
1463   case 421:
1464     geantCode=37;           // D0
1465     break ;
1466   case -421:
1467     geantCode=38;           // D~0
1468     break ;
1469   case 431:
1470     geantCode=39;           // D_S+
1471     break ;
1472   case -431:
1473     geantCode=40;           // D_S~-
1474     break ;
1475   case 4122:
1476     geantCode=41;           // LAMBDA_C+
1477     break ;
1478   case 213:
1479     geantCode=42;           // RHP(770)+
1480     break ;
1481   case -213:
1482     geantCode=43;           // RHO(770)-
1483     break ;
1484   case 113:
1485     geantCode=44;           // RHO(770)0
1486     break ;
1487   default:
1488     geantCode=45;
1489     break;
1490   }
1491
1492   return geantCode;
1493 }
1494
1495 //__________________________________________________________________
1496 Bool_t AliTOFReconstructioner::operator==( AliTOFReconstructioner const & tofrec)const
1497 {
1498   // Equal operator.
1499   // Reconstructioners are equal if their parameters are equal
1500
1501   // split the member variables in analogous categories
1502
1503   // time resolution and edge effect parameters
1504   Bool_t dummy0=(fTimeResolution==tofrec.fTimeResolution)&&(fpadefficiency==tofrec.fpadefficiency)&&(fEdgeEffect==tofrec.fEdgeEffect)&&(fEdgeTails==tofrec.fEdgeTails)&&(fHparameter==tofrec.fHparameter)&&(fH2parameter==tofrec.fH2parameter)&&(fKparameter==tofrec.fKparameter)&&(fK2parameter==tofrec.fK2parameter);
1505
1506   // pad efficiency parameters
1507   Bool_t dummy1=(fEffCenter==tofrec.fEffCenter)&&(fEffBoundary==tofrec.fEffBoundary)&&(fEff2Boundary==tofrec.fEff2Boundary)&&(fEff3Boundary==tofrec.fEff3Boundary)&&(fResCenter==tofrec.fResCenter)&&(fResBoundary==tofrec.fResBoundary)&&(fResSlope==tofrec.fResSlope);
1508
1509   // time walk parameters
1510   Bool_t dummy2=(fTimeWalkCenter==tofrec.fTimeWalkCenter)&&(fTimeWalkBoundary==tofrec.fTimeWalkBoundary)&&(fTimeWalkSlope==tofrec.fTimeWalkSlope)&&(fTimeDelayFlag==tofrec.fTimeDelayFlag)&&(fPulseHeightSlope==tofrec.fPulseHeightSlope)&&(fTimeDelaySlope==tofrec.fTimeDelaySlope);
1511
1512   // ADC-TDC correlation parameters
1513   Bool_t dummy3=(fMinimumCharge==tofrec.fMinimumCharge)&&(fChargeSmearing==tofrec.fChargeSmearing )&&(fLogChargeSmearing==tofrec.fLogChargeSmearing )&&(fTimeSmearing==tofrec.fTimeSmearing )&&(fAverageTimeFlag==tofrec.fAverageTimeFlag)&&(fChargeFactorForMatching==tofrec.fChargeFactorForMatching)&&(fMatchingStyle==tofrec.fMatchingStyle);
1514
1515   Bool_t dummy4=(fTrackingEfficiency==tofrec.fTrackingEfficiency)&&(fSigmavsp==tofrec.fSigmavsp)&&(fSigmaZ==tofrec.fSigmaZ)&&(fSigmarphi==tofrec.fSigmarphi)&&(fSigmap==tofrec.fSigmap)&&(fSigmaPhi==tofrec.fSigmaPhi)&&(fSigmaTheta==tofrec.fSigmaTheta)&&(fNoise==tofrec.fNoise)&&(fNoiseSlope==tofrec.fNoiseSlope)&&(fField==tofrec.fField)&&(fRadLenTPC==tofrec.fRadLenTPC)&&(fCorrectionTRD==tofrec.fCorrectionTRD)&&(fLastTPCRow==tofrec.fLastTPCRow)&&(fRadiusvtxBound==tofrec.fRadiusvtxBound)&&(fMaxTestTracks==tofrec.fMaxTestTracks)&&(fStep==tofrec.fStep)&&(fMaxPixels==tofrec.fMaxPixels)&&(fMaxAllTracks==tofrec.fMaxAllTracks)&&(fMaxTracks==tofrec.fMaxTracks)&&(fMaxTOFHits==tofrec.fMaxTOFHits)&&(fPBound==tofrec.fPBound);
1516
1517   if( dummy0 && dummy1 && dummy2 && dummy3 && dummy4)
1518     return kTRUE ;
1519   else
1520     return kFALSE ;
1521
1522 }
1523 //____________________________________________________________________________
1524 void AliTOFReconstructioner::UseHitsFrom(const char * filename)
1525 {
1526   SetTitle(filename) ;
1527 }
1528
1529 //____________________________________________________________________________
1530 void AliTOFReconstructioner::InitArray(Float_t array[], Int_t nlocations)
1531 {
1532   //
1533   // Initialize the array of Float_t
1534   //
1535   for (Int_t i = 0; i < nlocations; i++) {
1536     array[i]=0.;
1537   }                             // end loop
1538
1539 }
1540
1541 //____________________________________________________________________________
1542 void AliTOFReconstructioner::InitArray(Int_t array[], Int_t nlocations)
1543 {
1544   //
1545   // Initialize the array of Int_t
1546   //
1547   for (Int_t i = 0; i < nlocations; i++) {
1548     array[i]=0;
1549   }                             // end loop
1550
1551 }
1552
1553
1554 //____________________________________________________________________________
1555 void AliTOFReconstructioner::ReadTOFHits(Int_t ntracks, TTree* treehits, TClonesArray* tofhits, Int_t ***MapPixels, Int_t* kTOFhitFirst, AliTOFPad* pixelArray , Int_t* iTOFpixel, Float_t* toftime, AliTOFRecHit* hitArray, Int_t& isHitOnFiredPad, Int_t& ipixel)
1556 {
1557   //
1558   // Read TOF hits for the current event and fill arrays
1559   //
1560   // Start loop on primary tracks in the hits containers
1561   //
1562   // Noise meaning in ReadTOFHits: we use the word 'noise' in the
1563   // following cases
1564   // - signals produced by secondary particles
1565   // - signals produced by the next hits (out of the first) of a given track
1566   //   (both primary and secondary)
1567   // - signals produced by edge effect
1568
1569
1570   TParticle *particle;
1571   Int_t nHitOutofTofVolumes; // number of hits out of TOF GEANT volumes (it happens in very
1572                              // few cases)
1573   Int_t * npixel = new Int_t[AliTOFConstants::fgkmaxtoftree]; // array used by TOFRecon for check on TOF geometry
1574   Int_t npions=0;    // number of pions for the current event
1575   Int_t nkaons=0;    // number of kaons for the current event
1576   Int_t nprotons=0;  // number of protons for the current event
1577   Int_t nelectrons=0;// number of electrons for the current event
1578   Int_t nmuons=0;    // number of muons for the current event
1579   Float_t tofpos[3];     // TOF hit position and GEANT time
1580   Float_t zPad,xPad;
1581   Int_t nbytes = 0;
1582   Int_t ipart, nhits=0, nHitsFromPrimaries=0;
1583   Int_t ntotalTOFhits=0; // total number of TOF hits for the current event
1584   Int_t ipartLast=-1;    // last track identifier
1585   Int_t iFirstHit;       // flag to check if the current hit is the first hit on TOF for the
1586                          // current track
1587   Int_t iNoiseHit=0;     // flag used to tag noise hits (the noise meaning is reported in the
1588                          // header of the ReadTOFHits method)
1589   Int_t nhitWithoutNoise;// number of hits not due to noise
1590   Int_t inoise=0,inoise2=0;
1591   Int_t nMultipleSignOnSamePad=0; // number of cases where a pad is fired more than one time
1592   Int_t nPixEdge=0;      // additional pads fired due to edge effect in ReadTOFHits (local var)
1593   // array used for counting different types of primary particles
1594   Int_t particleTypeGEANT[50]={0,4,4,0,5,5,0,3,3,0,
1595                    2,2,0,1,1,0,0,0,0,0,
1596                    0,0,0,0,0,0,0,0,0,0,
1597                    0,0,0,0,0,0,0,0,0,0,
1598                    0,0,0,0,0,0,0,0,0,0};
1599   Int_t particleType,particleInTOFtype[6][3];
1600   for (Int_t i=0;i<6;i++) {
1601     for (Int_t j=0;j<3;j++) {
1602       particleInTOFtype[i][j]=0;
1603     }
1604   }
1605
1606   // speed-up the code
1607   treehits->SetBranchStatus("*",0); // switch off all branches
1608   treehits->SetBranchStatus("TOF*",1); // switch on only TOF
1609
1610   for (Int_t track=0; track<ntracks;track++) { // starting loop on primary tracks for the current event
1611
1612     gAlice->ResetHits();
1613     nbytes += treehits->GetEvent(track);
1614     nhits = tofhits->GetEntriesFast();
1615
1616     ntotalTOFhits+=nhits;
1617
1618     // Start loop on hits connected to the current primary tracked particle
1619     // (including hits produced by secondary particles generaterd by the
1620     // current ptimary tracked particle)
1621     for (Int_t hit=0;hit<nhits;hit++) {
1622       AliTOFhit* tofHit   = (AliTOFhit*)tofhits->UncheckedAt(hit);
1623       ipart    = tofHit->GetTrack();
1624       if(ipart>=fMaxAllTracks) break;
1625       Float_t geantTime= tofHit->GetTof(); // it is given in [s]
1626       particle = (TParticle*)gAlice->Particle(ipart);
1627
1628       Int_t pdgCode=particle->GetPdgCode();
1629       // Only high momentum tracks (see fPBound value)
1630       // momentum components at vertex
1631       Float_t pxvtx = particle->Px();
1632       Float_t pyvtx = particle->Py();
1633       Float_t pzvtx = particle->Pz();
1634       Float_t pvtx = TMath::Sqrt(pxvtx*pxvtx+pyvtx*pyvtx+pzvtx*pzvtx);
1635       if(pvtx>fPBound) {
1636
1637         if(particle->GetFirstMother() < 0) nHitsFromPrimaries++; // count primaries
1638
1639         // x and y coordinates of the particle production vertex
1640         Float_t vx = particle->Vx();
1641         Float_t vy = particle->Vy();
1642         Float_t vr = TMath::Sqrt(vx*vx+vy*vy); // cylindrical radius of the particle production vertex
1643
1644         Float_t x = tofHit->X(); tofpos[0]=x;
1645         Float_t y = tofHit->Y(); tofpos[1]=y;
1646         Float_t z = tofHit->Z(); tofpos[2]=z;
1647         /* var used for QA
1648         Float_t tofradius = TMath::Sqrt(x*x+y*y); // radius cilindrical coordinate of the TOF hit
1649         */
1650         // momentum components (cosine) when striking the TOF
1651         Float_t pxtof = tofHit->GetPx();
1652         Float_t pytof = tofHit->GetPy();
1653         Float_t pztof = tofHit->GetPz();
1654         // scalar product indicating the direction of the particle when striking the TOF
1655         /* var used for QA
1656         // (>0 for outgoing particles)
1657         Float_t isGoingOut = (x*pxtof+y*pytof+z*pztof)/TMath::Sqrt(x*x+y*y+z*z);
1658         */
1659         Float_t momtof = tofHit->GetMom();
1660         // now momentum components when striking the TOF
1661         pxtof *= momtof;
1662         pytof *= momtof;
1663         pztof *= momtof;
1664         particleType=particleTypeGEANT[PDGtoGeantCode(pdgCode)-1];
1665         if(particleType) {
1666           particleInTOFtype[5][2]++;
1667           particleInTOFtype[particleType-1][2]++;
1668         }
1669         iFirstHit=0;
1670         //  without noise hits
1671
1672         if(ipart!=ipartLast) {
1673           iFirstHit=1;
1674           toftime[ipart]=geantTime;    //time [s]
1675           // tofMom[ipart]=momtof;
1676           ipartLast=ipart;
1677           if(particle->GetFirstMother() < 0) {
1678             Int_t abspdgCode=TMath::Abs(pdgCode);
1679             switch (abspdgCode) {
1680             case 211:
1681               npions++;
1682               break ;
1683             case 321:
1684               nkaons++;
1685               break ;
1686             case 2212:
1687               nprotons++;
1688               break ;
1689             case 11:
1690               nelectrons++;
1691               break ;
1692             case 13:
1693               nmuons++;
1694               break ;
1695             }
1696           }
1697           if(vr>fRadiusvtxBound) {
1698             if(particleType) {
1699               particleInTOFtype[5][1]++;
1700               particleInTOFtype[particleType-1][1]++;
1701             }
1702             inoise++;
1703             inoise2++;
1704           } else {
1705             if(particleType) {
1706               particleInTOFtype[5][0]++;
1707               particleInTOFtype[particleType-1][0]++;
1708             }
1709           }
1710         } else {
1711           inoise++;
1712           if(particleType) {
1713             particleInTOFtype[5][1]++;
1714             particleInTOFtype[particleType-1][1]++;
1715           }
1716         } //end if(ipart!=ipartLast)
1717
1718         IsInsideThePad(gMC,x,y,z,npixel,zPad,xPad);
1719
1720         Int_t sec  = tofHit->GetSector();
1721         Int_t pla  = tofHit->GetPlate();
1722         Int_t str  = tofHit->GetStrip();
1723         if(sec!=npixel[0] || pla!=npixel[1] || str!=npixel[2]){// check on volume
1724           cout << "sector" << sec << " npixel[0] " << npixel[0] << endl;
1725           cout << "plate " << pla << " npixel[1] " << npixel[1] << endl;
1726           cout << "strip " << str << " npixel[2] " << npixel[2] << endl;
1727         } // close check on volume
1728
1729         Int_t padz = tofHit->GetPadz();
1730         Int_t padx = tofHit->GetPadx();
1731         Float_t Zpad = tofHit->GetDz();
1732         Float_t Xpad = tofHit->GetDx();
1733
1734
1735         if (npixel[4]==0){
1736           IsInsideThePad(gMC,x,y,z,npixel,zPad,xPad);
1737           if (npixel[4]==0){
1738             nHitOutofTofVolumes++;
1739           }
1740         } else {
1741           Float_t zStrip=AliTOFConstants::fgkZPad*(padz-0.5-0.5*AliTOFConstants::fgkNpadZ)+Zpad;
1742           if(padz!=npixel[3]) printf("            : Zpad=%f, padz=%i, npixel[3]=%i, zStrip=%f\n",Zpad,padz,npixel[3],zStrip);
1743           Float_t xStrip=AliTOFConstants::fgkXPad*(padx-0.5-0.5*AliTOFConstants::fgkNpadX)+Xpad;
1744
1745           Int_t nPlace[4]={0,0,0,0};
1746           nPlace[0]=(padz-1)*AliTOFConstants::fgkNpadX+padx;
1747
1748           Int_t   nActivatedPads=0;
1749           Int_t   nFiredPads=0;
1750           Bool_t  isFired[4]={kFALSE,kFALSE,kFALSE,kFALSE};
1751           Float_t tofAfterSimul[4]={0.,0.,0.,0.};
1752           Float_t qInduced[4]={0.,0.,0.,0.};
1753           Float_t averageTime=0.;
1754
1755
1756           BorderEffect(zStrip,xStrip,geantTime*1.0e+09,nActivatedPads,nFiredPads,isFired,nPlace,qInduced,tofAfterSimul,averageTime); // simulate edge effect
1757
1758
1759           if(nFiredPads) {
1760             for(Int_t indexOfPad=0; indexOfPad<nActivatedPads; indexOfPad++) {
1761               if(isFired[indexOfPad]){// the pad has fired
1762                 if(indexOfPad==0) {// the hit belongs to a fired pad
1763                   isHitOnFiredPad++;
1764                   hitArray[isHitOnFiredPad-1].SetHit(ipart,pdgCode,tofpos,momtof,vr,iFirstHit);
1765                   iNoiseHit=0;
1766
1767                   if(vr>fRadiusvtxBound || iFirstHit==0) iNoiseHit=1;
1768
1769                   hitArray[isHitOnFiredPad-1].SetNoise(iNoiseHit);
1770                   if(iFirstHit) kTOFhitFirst[ipart]=isHitOnFiredPad;
1771
1772                 }// close - the hit belongs to a fired pad
1773
1774                 Int_t iMapFirstIndex=AliTOFConstants::fgkNSectors*(npixel[1]-1)+npixel[0]-1;
1775                 Int_t iMapValue=MapPixels[iMapFirstIndex][npixel[2]-1][nPlace[indexOfPad]-1];
1776
1777                 if(iMapValue==0) {
1778                   ipixel++;
1779                   if(indexOfPad) {
1780                     iNoiseHit=1;
1781                     nPixEdge++;
1782                   } else {
1783                     iTOFpixel[ipart]=ipixel;
1784                   }
1785
1786                   if(ipixel>fMaxPixels){ // check on the total number of activated pads
1787                     cout << "ipixel=" << ipixel << " > fMaxPixels=" << fMaxPixels << endl;
1788                     return;
1789                   } // close check on the number of activated pads
1790
1791                   MapPixels[iMapFirstIndex][npixel[2]-1][nPlace[indexOfPad]-1]=ipixel;
1792                   pixelArray[ipixel-1].SetGeom(npixel[0],npixel[1],npixel[2],nPlace[indexOfPad]);
1793                   pixelArray[ipixel-1].SetTrack(ipart);
1794                   if(iNoiseHit) {
1795                     pixelArray[ipixel-1].AddState(1);
1796                   } else {
1797                     if(tofAfterSimul[indexOfPad]<0) cout << "Time of Flight after detector simulation is negative" << endl;
1798                     pixelArray[ipixel-1].AddState(10);
1799                   }
1800
1801                   pixelArray[ipixel-1].SetTofChargeHit(tofAfterSimul[indexOfPad],qInduced[indexOfPad],geantTime*1.0e+09,isHitOnFiredPad);
1802                 } else { //else if(iMapValue==0)
1803                   if(indexOfPad==0) iTOFpixel[ipart]=iMapValue;
1804                   nMultipleSignOnSamePad++;
1805
1806                   if(tofAfterSimul[indexOfPad] < pixelArray[iMapValue-1].GetRealTime() ) {
1807                     pixelArray[iMapValue-1].SetTrack(ipart);
1808                     //                   if(indexOfPad==0) pixelArray[iMapValue-1].SetTrack(ipart);
1809                     if(indexOfPad) iNoiseHit=1;
1810                     if(iNoiseHit) {
1811                       pixelArray[iMapValue-1].AddState(1);
1812                     } else {
1813                       pixelArray[iMapValue-1].AddState(10);
1814                     }
1815                     pixelArray[iMapValue-1].SetRealTime(tofAfterSimul[indexOfPad]);
1816                     pixelArray[iMapValue-1].SetGeantTime(geantTime*1.0e+09);
1817                     pixelArray[iMapValue-1].SetHit(isHitOnFiredPad);
1818                   } // close if(tofAfterSimul[indexOfPad] < pixelArray[iMapValue-1].GetTime() )
1819                 }  //end of Pixel filling
1820               }  // close if(isFired[indexOfPad])
1821             }  //end loop on activated pads indexOfPad
1822           } // close if(nFiredPads)
1823         }  //end of hit with npixel[3]!=0
1824       }  //high momentum tracks
1825     }  //end on TOF hits
1826   }  //end on primary tracks
1827
1828
1829   if(fdbg) {
1830     cout << ntotalTOFhits << " - total number of TOF hits   " << nHitsFromPrimaries << " -  primary     " <<  endl;
1831     cout << inoise << " - noise hits, " << inoise2<< " - first crossing of a track with Rvtx>" << fRadiusvtxBound << endl;
1832     //   cout << inoise << " - noise hits (" << 100.*inoise/ihit << " %), " << inoise2
1833     //<< " - first crossing of a track with Rvtx>" << RVTXBOUND << endl;
1834     nhitWithoutNoise=isHitOnFiredPad;
1835
1836     cout << ipixel << " fired pixels (" << nMultipleSignOnSamePad << " multiple fired pads, " << endl;
1837     //j << " fired by noise, " << j1 << " noise+track)" <<  endl;
1838     printf(" %i additional pads are fired due to edge effect\n",nPixEdge);
1839     cout << npions <<   "   primary pions     reached TOF" << endl;
1840     cout << nkaons <<   "   primary kaons     reached TOF" << endl;
1841     cout << nprotons << "   primary protons   reached TOF" << endl;
1842     cout << nelectrons<<"   primary electrons reached TOF" << endl;
1843     cout << nmuons <<   "   primary muons     reached TOF" << endl;
1844     cout << "number of TOF hits for different species: 1-p, 2-K, 3-pi, 4-e, 5-mu, 6-all" << endl;
1845     cout << "   first number - track hits, second - noise ones, third - all" << endl;
1846     for (Int_t i=0;i<6;i++) cout << i+1 << "  " << particleInTOFtype[i][0] << "  " << particleInTOFtype[i][1] << "  " << particleInTOFtype[i][2] << endl;
1847
1848     Int_t primaryReachedTOF[6];
1849     primaryReachedTOF[0]=npions;
1850     primaryReachedTOF[1]=nkaons;
1851     primaryReachedTOF[2]=nprotons;
1852     primaryReachedTOF[3]=nelectrons;
1853     primaryReachedTOF[4]=nmuons;
1854     primaryReachedTOF[5]=npions+nkaons+nprotons+nelectrons+nmuons;
1855
1856     cout << " Reading TOF hits done" << endl;
1857   }
1858
1859   delete [] npixel;
1860 }
1861
1862 //____________________________________________________________________________
1863 void AliTOFReconstructioner::AddNoiseFromOuter(Option_t *option, Int_t ***MapPixels, AliTOFPad* pixelArray , AliTOFRecHit* hitArray, Int_t& isHitOnFiredPad, Int_t& ipixel)
1864 {
1865   //
1866   // Add noise hits from outer regions (forward and backward) according
1867   // to parameterized fZNoise distribution (to be used with events
1868   // generated in the barrel region)
1869
1870   Float_t * zLen = new Float_t[AliTOFConstants::fgkNPlates+1];
1871   Float_t * zStrips = new Float_t[AliTOFConstants::fgkNPlates];
1872   zStrips[0]=(Float_t) (AliTOFConstants::fgkNStripC);
1873   zStrips[1]=(Float_t) (AliTOFConstants::fgkNStripB);
1874   zStrips[2]=(Float_t) (AliTOFConstants::fgkNStripA);
1875   zStrips[3]=(Float_t) (AliTOFConstants::fgkNStripB);
1876   zStrips[4]=(Float_t) (AliTOFConstants::fgkNStripC);
1877
1878   zLen[5]=AliTOFConstants::fgkzlenA*0.5+AliTOFConstants::fgkzlenB+AliTOFConstants::fgkzlenC;
1879   zLen[4]=zLen[5]-AliTOFConstants::fgkzlenC;
1880   zLen[3]=zLen[4]-AliTOFConstants::fgkzlenB;
1881   zLen[2]=zLen[3]-AliTOFConstants::fgkzlenA;
1882   zLen[1]=zLen[2]-AliTOFConstants::fgkzlenB;
1883   zLen[0]=zLen[1]-AliTOFConstants::fgkzlenC;
1884
1885
1886   Int_t isector;    // random sector number
1887   Int_t iplate;     // random plate number
1888   Int_t istrip;     // random strip number in the plate
1889   Int_t ipadAlongX; // random pad number along x direction
1890   Int_t ipadAlongZ; // random pad number along z direction
1891   Int_t ipad;
1892   Int_t nPixEdge=0; // additional pads fired due to edge effect when adding noise from outer
1893                     // regions
1894
1895   // x -> time of flight given in ns
1896   TF1 *noiseTof = new TF1("noiseTof","exp(-x/20)",0,100);
1897
1898   if(strstr(option,"pp")){
1899     fZnoise = new TF1("fZnoise","257.8-0.178*x-0.000457*x*x",-AliTOFConstants::fgkMaxhZtof,AliTOFConstants::fgkMaxhZtof);
1900   }
1901   if(strstr(option,"Pb-Pb")){
1902     fZnoise = new TF1("fZnoise","182.2-0.09179*x-0.0001931*x*x",-AliTOFConstants::fgkMaxhZtof,AliTOFConstants::fgkMaxhZtof);
1903   }
1904
1905   if(fNoise) {
1906     if(fdbg) cout << " Start adding additional noise  hits from outer regions" << endl;
1907
1908     for(Int_t i=0;i<fNoise;i++) {
1909
1910       isector=(Int_t) (AliTOFConstants::fgkNSectors*gRandom->Rndm())+1; //the sector number
1911       //  non-flat z-distribution of additional hits
1912       Float_t zNoise=fZnoise->GetRandom();
1913
1914       // holes for PHOS and HMPID
1915       if(((AliTOF *) gAlice->GetDetector("TOF"))->IsVersion()==2) {
1916         // to be checked the holes case
1917         if(isector>12 && isector<16) { // sectors 13,14,15 - RICH
1918           do {
1919             iplate=(Int_t) (AliTOFConstants::fgkNPlates*gRandom->Rndm())+1;
1920           } while (iplate==2 || iplate==3 || iplate==4);
1921           //         } else if(isector>11 && isector<17) { // sectors 12,13,14,15,16 - PHOS
1922         } else if(isector>2 && isector<8) { // sectors 3,4,5,6,7 - PHOS
1923           do {
1924             iplate=(Int_t) (AliTOFConstants::fgkNPlates*gRandom->Rndm())+1;
1925           } while (iplate==3);
1926         } else {
1927           iplate=(Int_t) (AliTOFConstants::fgkNPlates*gRandom->Rndm())+1;
1928         }
1929       } else {
1930         iplate=0;
1931         do {
1932           iplate++;
1933         } while(zNoise>zLen[iplate]);
1934       }
1935       // end of holes
1936
1937       if(iplate<1 || iplate>5) {
1938         printf("  iplate<1 or iplate>5, iplate=%i\n",iplate);
1939         return;
1940       }
1941
1942       Float_t nStripes=0;
1943       if(iplate>1) {
1944         for (Int_t i=0;i<iplate-1;i++) {
1945           nStripes += zStrips[i];
1946         }
1947       }
1948
1949       istrip=(Int_t)((zNoise-zLen[iplate-1])/((zLen[iplate]-zLen[iplate-1])/zStrips[iplate-1])); //the strip number in the plate
1950       istrip++;
1951
1952       ipadAlongX = (Int_t)(AliTOFConstants::fgkNpadX*gRandom->Rndm())+1;
1953       ipadAlongZ = (Int_t)(AliTOFConstants::fgkNpadZ*gRandom->Rndm())+1;
1954       ipad=(Int_t)(ipadAlongZ-1)*AliTOFConstants::fgkNpadX+ipadAlongX;    //the pad number
1955
1956       Float_t xStrip=(ipadAlongX-1)*AliTOFConstants::fgkXPad+AliTOFConstants::fgkXPad*gRandom->Rndm()-0.5*AliTOFConstants::fgkNpadX*AliTOFConstants::fgkXPad;//x-coor.in the strip frame
1957       Float_t zStrip=(ipadAlongZ-1)*AliTOFConstants::fgkZPad+AliTOFConstants::fgkZPad*gRandom->Rndm()-0.5*AliTOFConstants::fgkNpadZ*AliTOFConstants::fgkZPad;//z-coor.in the strip frame
1958
1959       Int_t nPlace[4]={0,0,0,0};
1960       nPlace[0]=ipad;
1961
1962       Int_t   nActivatedPads=0;
1963       Int_t   nFiredPads=0;
1964       Bool_t  isFired[4]={kFALSE,kFALSE,kFALSE,kFALSE};
1965       Float_t tofAfterSimul[4]={0.,0.,0.,0.};
1966       Float_t qInduced[4]={0.,0.,0.,0.};
1967       Float_t averageTime=0.;
1968       Float_t toffornoise=10.+noiseTof->GetRandom(); // 10 ns offset + parameterization [ns]
1969
1970       BorderEffect(zStrip,xStrip,toffornoise,nActivatedPads,nFiredPads,isFired,nPlace,qInduced,tofAfterSimul,averageTime); // simulate edge effect
1971
1972       if(nFiredPads) {
1973         for(Int_t indexOfPad=0; indexOfPad<nActivatedPads; indexOfPad++) {
1974           if(isFired[indexOfPad]){// the pad has fired
1975
1976             if(indexOfPad==0) {// the hit belongs to a fired pad
1977               isHitOnFiredPad++;
1978               hitArray[isHitOnFiredPad-1].SetX(0.);
1979               hitArray[isHitOnFiredPad-1].SetY(0.);
1980               hitArray[isHitOnFiredPad-1].SetZ(zNoise);
1981               hitArray[isHitOnFiredPad-1].SetNoise(1);
1982             } // close if(indexOfPad==0)
1983
1984             ipad = nPlace[indexOfPad];
1985
1986             Int_t iMapValue=MapPixels[AliTOFConstants::fgkNSectors*(iplate-1)+isector-1][istrip-1][ipad-1];
1987
1988             if(iMapValue==0) {
1989               ipixel++;
1990               if(indexOfPad) nPixEdge++;
1991               MapPixels[AliTOFConstants::fgkNSectors*(iplate-1)+isector-1][istrip-1][ipad-1]=ipixel;
1992               pixelArray[ipixel-1].SetGeom(isector,iplate,istrip,ipad);
1993               pixelArray[ipixel-1].AddState(1);
1994               pixelArray[ipixel-1].SetRealTime(tofAfterSimul[indexOfPad]);
1995               pixelArray[ipixel-1].SetHit(isHitOnFiredPad);
1996             } else if( tofAfterSimul[indexOfPad] < pixelArray[iMapValue-1].GetRealTime() ) {
1997               pixelArray[iMapValue-1].SetTrack(-1);
1998               pixelArray[iMapValue-1].AddState(1);
1999               pixelArray[iMapValue-1].SetRealTime(tofAfterSimul[indexOfPad]);
2000               pixelArray[iMapValue-1].SetHit(isHitOnFiredPad);
2001             }  //end of if(iMapValue==0)
2002
2003           }// close if(isFired[indexOfPad])
2004         }  //end loop on activated pads indexOfPad
2005       } // close if(nFiredPads)
2006     }  //end of NOISE cycle
2007   }
2008
2009   // free used memory
2010   if (fZnoise)
2011     {
2012       delete fZnoise;
2013       fZnoise = 0;
2014     }
2015
2016   if (noiseTof)
2017     {
2018       delete noiseTof;
2019        noiseTof = 0;
2020     }
2021
2022   Int_t nNoiseSignals=0;
2023   Int_t nAll=0;
2024   for(Int_t idummy=1; idummy<ipixel+1; idummy++) {
2025     if(hitArray[pixelArray[idummy-1].GetHit()-1].GetNoise()==1) {
2026       nNoiseSignals++;
2027       if(pixelArray[idummy-1].GetState()>10) nAll++;
2028     }
2029   }
2030
2031   if(fdbg) {
2032     cout << " after adding " << fNoise << " noise hits: " << ipixel << " fired pixels (" << nNoiseSignals << " fired by noise, " << nAll << " noise+track)" << endl;
2033     printf(" %i additional pixels are fired by noise due to edge effect\n",nPixEdge);
2034     cout << " End of adding additional noise hits from outer regions" << endl;
2035   }
2036
2037   Float_t occupancy;
2038   // numberOfPads for AliTOFV4 (Full coverage)
2039   // - to be upgraded checking the used TOF version -
2040   Float_t numberOfPads=AliTOFConstants::fgkPadXSector*AliTOFConstants::fgkNSectors;
2041   occupancy=100.*ipixel/numberOfPads;   // percentage of fired pads
2042   printf(" Overall TOF occupancy (percentage of fired pads after adding noise) = %f\n",occupancy);
2043   delete [] zLen;
2044   delete [] zStrips;
2045
2046 }
2047
2048
2049 //____________________________________________________________________________
2050 void AliTOFReconstructioner::SetMinDistance(AliTOFRecHit* hitArray, Int_t ilastEntry)
2051 {
2052   //
2053   // Set the distance to the nearest hit for hitArray
2054   // ilastEntry is the index of the last entry of hitArray
2055
2056   // starting the setting for the distance to the nearest TOFhit (cm)
2057   for(Int_t i=0; i<ilastEntry; i++) {
2058
2059     if(hitArray[i].GetFirst()==1 && hitArray[i].GetNoise()==0) { // select the first hit of the track
2060       // hits are not due to noise
2061       Float_t minDistance=10000.,squareDistance; // current values of the (square) distance
2062       Int_t jAtMin=0;                            // index of the hit nearest to the i-th hit
2063       Float_t xhit=hitArray[i].X(); // x coordinate for i-th hit
2064       Float_t yhit=hitArray[i].Y(); // y coordinate for i-th hit
2065       Float_t zhit=hitArray[i].Z(); // z coordinate for i-th hit
2066       //  was    for(Int_t j=0; j<isHitOnFiredPad; j++) {
2067       for(Int_t j=0; j<ilastEntry; j++) {
2068         if(i!=j) {
2069           squareDistance=(hitArray[j].X()-xhit)*(hitArray[j].X()-xhit)+
2070             (hitArray[j].Y()-yhit)*(hitArray[j].Y()-yhit)+
2071             (hitArray[j].Z()-zhit)*(hitArray[j].Z()-zhit);
2072           if(squareDistance<minDistance) {
2073             minDistance=squareDistance;
2074             jAtMin=j;
2075           }
2076         }
2077       }
2078       minDistance=TMath::Sqrt(minDistance);
2079       hitArray[i].SetRmin(minDistance);
2080       if(minDistance==0.) printf(" Rmin=0, i=%i, j=%i, x=%f,y=%f,z=%f\n",i,jAtMin,xhit,yhit,zhit);// it cannot happen
2081     }
2082   }
2083
2084 }
2085
2086 // these lines has to be commented till TPC will provide fPx fPy fPz
2087 // and fL in AliTPChit class
2088 //____________________________________________________________________________
2089 /*
2090 void AliTOFReconstructioner::ReadTPCHits(Int_t ntracks, TTree* treehits, TClonesArray* tpchits, Int_t* iTrackPt, Int_t* iparticle, Float_t* ptTrack, AliTOFTrack* trackArray, Int_t& itrack)
2091 {
2092   //
2093   // Read TPC hits for the current event
2094   //
2095   TParticle *particle=0;
2096   Int_t npions=0;    // number of pions for the current event
2097   Int_t nkaons=0;    // number of kaons for the current event
2098   Int_t nprotons=0;  // number of protons for the current event
2099   Int_t nelectrons=0;// number of electrons for the current event
2100   Int_t nmuons=0;    // number of muons for the current event
2101   Int_t ntotalTPChits=0; // total number of TPC hits for the current event
2102   Int_t idummy=-1;       // dummy var used to count double hit TPC cases
2103   Int_t nTpcDoubleHitsLastRow=0; // number of double TPC hits in the last pad row
2104   Int_t nTpcHitsLastRow=0;       // number of TPC hits in the last pad row
2105   Float_t trdpos[2]={0.,0.};
2106   Float_t pos[3];               // TPC hit position
2107   Float_t mom[3]; // momentum components in the last TPC row
2108   Float_t pt=0., tpclen; // pt: transverse momentum in the last TPC row
2109   Int_t nbytes = 0;
2110   Int_t ipart=0, nhits=0, iprim=0;
2111
2112   itrack=0; // itrack: total number of selected TPC tracks
2113
2114   // speed-up the code
2115   treehits->SetBranchStatus("*",0); // switch off all branches
2116   treehits->SetBranchStatus("TPC*",1); // switch on only TPC
2117
2118   for (Int_t track=0; track<ntracks;track++) {
2119     gAlice->ResetHits();
2120     nbytes += treehits->GetEvent(track);
2121
2122
2123     nhits = tpchits->GetEntriesFast();
2124
2125     for (Int_t hit=0;hit<nhits;hit++) {
2126       ntotalTPChits++;
2127       AliTPChit* tpcHit = (AliTPChit*)tpchits->UncheckedAt(hit);
2128       Int_t row = tpcHit->fPadRow;
2129       ipart    = tpcHit->GetTrack();
2130       if(ipart>=fMaxAllTracks) break;
2131       particle = (TParticle*)gAlice->Particle(ipart);
2132       Int_t pdgCode=particle->GetPdgCode();
2133       // only high momentum tracks
2134       // momentum components at production vertex
2135       Float_t pxvtx = particle->Px();
2136       Float_t pyvtx = particle->Py();
2137       Float_t pzvtx = particle->Pz();
2138       Float_t pvtx = TMath::Sqrt(pxvtx*pxvtx+pyvtx*pyvtx+pzvtx*pzvtx);
2139       if(pvtx>fPBound && row == fLastTPCRow) {
2140         Float_t vx = particle->Vx();
2141         Float_t vy = particle->Vy();
2142         Float_t vr = TMath::Sqrt(vx*vx+vy*vy);
2143         Float_t x = tpcHit->X();
2144         Float_t y = tpcHit->Y();
2145         Float_t z = tpcHit->Z();
2146         pos[0]=x; pos[1]=y; pos[2]=z;
2147
2148         Float_t pxtpc = tpcHit->fPx;
2149         Float_t pytpc = tpcHit->fPy;
2150         Float_t pztpc = tpcHit->fPz;
2151         mom[0]=pxtpc; mom[1]=pytpc; mom[2]=pztpc;
2152         Float_t momtpc = TMath::Sqrt(pxtpc*pxtpc+pytpc*pytpc+pztpc*pztpc);
2153
2154         if(x*pxtpc+y*pytpc>0) { // only tracks going out of TPC
2155
2156           Float_t isoutgoing = x*pxtpc+y*pytpc+z*pztpc;
2157           isoutgoing /= (momtpc*TMath::Sqrt(x*x+y*y+z*z));
2158           tpclen = tpcHit->fL;
2159
2160
2161           if(ipart!=idummy) {
2162             if(particle->GetFirstMother() < 0) {
2163               Int_t abspdgCode=TMath::Abs(pdgCode);
2164               switch (abspdgCode) {
2165               case 211:
2166                 npions++;
2167                 break ;
2168               case 321:
2169                 nkaons++;
2170                 break ;
2171               case 2212:
2172                 nprotons++;
2173                 break ;
2174               case 11:
2175                 nelectrons++;
2176                 break ;
2177               case 13:
2178                 nmuons++;
2179                 break ;
2180               }
2181             } // close if(particle->GetFirstMother() < 0)
2182           } // close if(ipart!=idummy)
2183
2184           if(gRandom->Rndm()<fTrackingEfficiency && vr<fRadiusvtxBound && ipart!=idummy) {
2185
2186             itrack++;
2187             if(particle->GetFirstMother() < 0) iprim++;
2188
2189             if(itrack>fMaxTracks) {
2190               cout << "itrack=" << itrack << " > MAXTRACKS=" << fMaxTracks << endl;
2191               return;
2192             } // close if(itrack>fMaxTracks)
2193
2194
2195             iparticle[ipart]=itrack;
2196
2197             trackArray[itrack-1].SetTrack(ipart,pvtx,pdgCode,tpclen,pos,mom,trdpos);
2198
2199             pt=TMath::Sqrt(pxtpc*pxtpc+pytpc*pytpc); // pt: transverse momentum at TPC
2200             // Filling iTrackPt[MAXTRACKS] by itrack ordering on Pt
2201             if(itrack==1) {
2202               iTrackPt[itrack-1]=itrack;
2203               ptTrack[itrack-1]=pt;
2204             } else {
2205               for (Int_t i=0; i<itrack-1; i++) {
2206                 if(pt>ptTrack[i]) {
2207                   for(Int_t j=i; j<itrack-1; j++) {
2208                     Int_t k=itrack-1+i-j;
2209                     iTrackPt[k]= iTrackPt[k-1];
2210                     ptTrack[k] = ptTrack[k-1];
2211                   }
2212                   iTrackPt[i]=itrack;
2213                   ptTrack[i]=pt;
2214                   break;
2215                 }
2216                 if(i==itrack-2) {
2217                   iTrackPt[itrack-1]=itrack;
2218                   ptTrack[itrack-1]=pt;
2219                 }
2220               }
2221             }
2222
2223           }  //end of itrack
2224           if(vr>fRadiusvtxBound) nTpcHitsLastRow++;
2225           if(ipart==idummy) nTpcDoubleHitsLastRow++;
2226           idummy=ipart;
2227         }  // close if(x*px+y*py>0)
2228       }  // close if(pvtx>fPBound && row == fLastTPCRow)
2229     }  //end of hits
2230   }  // close loop on tracks
2231
2232
2233   if(fdbg) {
2234     cout << ntotalTPChits << " TPC hits in the last TPC row " << fLastTPCRow << endl;
2235     cout << "   " << nTpcHitsLastRow << " - hits with Rvtx>fRadiusvtxBound=" << fRadiusvtxBound << endl;
2236     cout << "   " << nTpcDoubleHitsLastRow << " double TPC hits" << endl;
2237     cout << itrack    << " - extracted TPC tracks   "     << iprim << " - primary" << endl;
2238     cout << npions    << " primary pions reached TPC"     << endl;
2239     cout << nkaons    << " primary kaons reached TPC"     << endl;
2240     cout << nprotons  << " primary protons reached TPC"   << endl;
2241     cout << nelectrons<< " primary electrons reached TPC" << endl;
2242     cout << nmuons    << " primary muons reached TPC"     << endl;
2243   } // if(fdbg)
2244
2245   Int_t primaryInTPC[6]={0,0,0,0,0,0};
2246   primaryInTPC[0]=npions;
2247   primaryInTPC[1]=nkaons;
2248   primaryInTPC[2]=nprotons;
2249   primaryInTPC[3]=nelectrons;
2250   primaryInTPC[4]=nmuons;
2251   primaryInTPC[5]=npions+nkaons+nprotons+nelectrons+nmuons;
2252
2253   if(fdbg) {
2254     printf("  contents of iTrackPt[MAXTRACKS],PtTrack[MAXTRACKS]\n");
2255     for (Int_t i=0; i<itrack; i++) {
2256       printf(" %i : iTrackPt=%i, PtTrack=%f\n",i+1,iTrackPt[i],ptTrack[i]);
2257     }
2258     printf(" Check ordered transverse momentum array\n");
2259     for (Int_t i=itrack-1; i>=0; i--) {
2260       printf(" %i : iTrackPt=%i, PtTrack=%f\n",i+1,iTrackPt[i],ptTrack[i]);
2261     }
2262   }// if(fdbg)
2263
2264 }
2265 */
2266 //____________________________________________________________________________
2267 void cylcor(Float_t& x, Float_t& y) {
2268   Float_t rho,phi;
2269
2270   rho=TMath::Sqrt(x*x+y*y);
2271   phi=0.;
2272   if(TMath::Abs(x)>0. || TMath::Abs(y)>0.) phi=TMath::ATan2(y,x);
2273   if(phi<0.) phi=phi+2.*TMath::Pi();
2274   x=rho;
2275   y=phi;
2276
2277 }
2278
2279 //____________________________________________________________________________
2280 void AliTOFReconstructioner::Matching(AliTOFTrack* trackArray, AliTOFRecHit* hitArray, Int_t ***mapPixels, AliTOFPad* pixelArray, Int_t* kTOFhitFirst, Int_t& ipixel, Int_t* iTrackPt, Int_t* iTOFpixel, Int_t ntotTpcTracks)
2281 {
2282   Int_t TestTracks,iTestTrack,itest,wPixel=0,itestc;
2283   Int_t * ntest = new Int_t[fMaxTestTracks];
2284   Int_t * testPixel = new Int_t[fMaxTestTracks];
2285   Float_t wLength=0.,wRho=0.,wZ=0.;
2286   Float_t * testLength = new Float_t[fMaxTestTracks];
2287   Float_t * testRho = new Float_t[fMaxTestTracks];
2288   Float_t * testZ = new Float_t[fMaxTestTracks];
2289   Float_t weight;
2290   Float_t * testWeight = new Float_t[fMaxTestTracks];
2291   Float_t rotationFactor,phi0,coslam,sinlam,helixRadius,xHelixCenter,yHelixCenter,zHelixCenter,helixFactor;
2292   Int_t npixel[5],iMapValue,iwork1,iwork2,iwork3,iwork4,ihit=0;
2293   Int_t charge[48]={ 0, 1,-1, 0, 1,-1, 0, 1,-1, 0,
2294                      1,-1, 0, 1,-1, 0, 0, 0, 1, 0,
2295                      -1, 0,-1,-1, 0, 0,-1, 0, 1, 0,
2296                      1, 1, 0, 0, 1,-1, 0, 0, 1,-1,
2297                      1, 1,-1, 0, 1, 1, 2, 0};
2298   Float_t theta0,gpx,gpy,gpz,gp,gpt,gtheta,gx,gy,gz,gr,gxLast,gyLast,gzLast,chargeField;
2299   Float_t sumOfTheta=0.,weightTestTracksOutTof[4];
2300   Float_t s,ds,xRespectToHelixCenter,yRespectToHelixCenter,deltaRadius,fp,xp,yp,grho;
2301   Float_t mass,energy,g;
2302   Int_t itrack=0,itr,particleCharge,istep,iplate=0,iPadAlongX=0;
2303   Int_t itra,t34=0,t32=0,t44=0,t43=0,t42=0;
2304   Int_t wstate=0,m2state=0,wPix;
2305   Int_t idelR=0,idelR1=0,idelR2=0,iRmin=0,iRmin1=0,iRmin2=0;
2306   Float_t massArray[50] = {0.0,0.00051,0.00051,0.0,0.1057,0.1057,0.135,0.1396,0.1396,0.4977,
2307                        0.4936,0.4936,0.9396,0.9383,0.9383,0.4977,0.5488,1.1156,1.1894,1.1926,1.1926,
2308                        1.3149,1.3213,1.6724,0.9396,1.1156,1.1894,1.1926,1.1974,1.3149,
2309                        0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
2310   Float_t delR;
2311   Float_t radius,area,normR,normS,cosAngl;
2312   Int_t iPlateFirst,iTestGmax=0;
2313   Int_t fstate,iPrintM1=0,iPrintM2=0;
2314   Float_t gxExtrap=0.,gyExtrap=0.,gzExtrap=0.;
2315   Float_t avSigZ=0,avSigRPHI=0,avSigP=0,avSigPHI=0,avSigTHETA=0;
2316
2317   Float_t gxW,gyW,gzW;
2318   Float_t length0;
2319   Float_t snr=0;
2320   Int_t indexOfTestTrack;
2321   Float_t zPad,xPad;
2322   Int_t istate=0,imax=0,match,iMaxTestTracksOutTof=0,matchw;
2323   Float_t w,wmax=0.,inverseOfParticleSpeed,w2,smat[9],largestWeightTracksOutTof,sw;
2324   Float_t sumWeightTracksOutTof,sGeomWeigth;
2325   Int_t imatched;
2326   Int_t m10=0,m20=0,m22=0,m23=0;
2327   Int_t PRINT=0;
2328   TParticle *particle;
2329
2330   Float_t time=0.;
2331   itr=ntotTpcTracks;
2332   printf(" itr=%i\n",itr);
2333   for (itra=1; itra<itr+1; itra++) {
2334
2335     Int_t itrack=iTrackPt[itra-1];
2336     if(itrack==0) printf("  iTrackPt[itra-1]=0 for itra=%i\n",itra);
2337     Int_t ipart=trackArray[itrack-1].GetTrack();
2338     Float_t pvtx=trackArray[itrack-1].GetP();
2339     Int_t pdgCode=trackArray[itrack-1].GetPdgCode();
2340     Float_t tpclength=trackArray[itrack-1].GetlTPC();
2341     Float_t x=trackArray[itrack-1].GetRxTPC();
2342     Float_t y=trackArray[itrack-1].GetRyTPC();
2343     Float_t z=trackArray[itrack-1].GetRzTPC();
2344     /* vars used for QA
2345     Float_t RxTPC=x;
2346     Float_t RyTPC=y;
2347     Float_t RzTPC=z;
2348     */
2349     Float_t Wx=x;
2350     Float_t Wy=y;
2351     Float_t Wz=z;
2352     Float_t px=trackArray[itrack-1].GetPxTPC();
2353     Float_t py=trackArray[itrack-1].GetPyTPC();
2354     Float_t pz=trackArray[itrack-1].GetPzTPC();
2355     /* vars used for QA
2356     Float_t pxTPC=px;
2357     Float_t pyTPC=py;
2358     Float_t pzTPC=pz;
2359     */
2360     Float_t p = TMath::Sqrt(px*px+py*py+pz*pz);
2361     /* var used for QA
2362     Float_t pTPC=p;
2363     */
2364     Float_t rho = TMath::Sqrt(x*x+y*y);
2365     Float_t phi=0.;
2366     if(TMath::Abs(x)>0. || TMath::Abs(y)>0.) phi=TMath::ATan2(y,x);
2367     if(phi<0.) phi=phi+2.*TMath::Pi();
2368     /* var used for QA
2369     Float_t phiTPC=phi*kRaddeg;
2370     */
2371     if(fSigmavsp) {
2372       if(p==0) printf(" p=%f in g=0.022/p\n",p);
2373       g=0.022/p;
2374       avSigRPHI += g;      // (cm)
2375       if(rho==0) printf(" rho=%f in phi += g*gRandom->Gaus()/rho\n",rho);
2376       phi += g*gRandom->Gaus()/rho;
2377     } else {
2378       if(rho==0) printf(" rho=%f in phi += (SIGMARPHI*gRandom->Gaus()/rho\n",rho);
2379       phi += (fSigmarphi*gRandom->Gaus()/rho);
2380     }
2381     x=rho*TMath::Cos(phi);
2382     y=rho*TMath::Sin(phi);
2383     /* var used for QA
2384     Float_t zTPC=z;
2385     */
2386     if(fSigmavsp) {
2387       if(p==0) printf(" p=%f in g=0.0275/p\n",p);
2388       g=0.0275/p;
2389       avSigZ += g;      // (cm)
2390       z += g*gRandom->Gaus();
2391     } else {
2392       z += fSigmaZ*gRandom->Gaus();
2393     }
2394
2395     // smearing on TPC momentum
2396
2397     {
2398       Float_t pmom,phi,theta,arg;
2399
2400       pmom=TMath::Sqrt(px*px+py*py+pz*pz);
2401       phi=0.;
2402       if(TMath::Abs(px)>0. || TMath::Abs(py)>0.) phi=TMath::ATan2(py,px);
2403       if(phi<0.) phi=phi+2*TMath::Pi();
2404       arg=1.;
2405       if(pmom>0.) arg=pz/pmom;
2406       theta=0.;
2407       if(TMath::Abs(arg)<=1.) theta=TMath::ACos(arg);
2408
2409       if(fSigmavsp) {
2410         if(pmom<=0) printf(" pmom=%f in g = TMath::Abs(TMath::Log(pmom)/TMath::Log(10)+0.5)/0.7\n",pmom);
2411         g = TMath::Abs(TMath::Log(pmom)/TMath::Log(10)+0.5)/0.7;
2412         g = 0.01*(g*g*g+1.5)*1.24;
2413         avSigP += g;
2414         pmom *= (1+g*gRandom->Gaus());
2415
2416         if(p<10) {
2417           if(pmom<=0) printf(" pmom=%f in g = 1-TMath::Log(pmom)/TMath::Log(10)\n",pmom);
2418           g = 1-TMath::Log(pmom)/TMath::Log(10);
2419           g = 0.001*(g*g*g+0.3)*0.65;  // (radian)
2420         } else {
2421           g = 0.001*0.3*0.65;
2422         }
2423         avSigPHI += g;
2424         phi += g*gRandom->Gaus();
2425         avSigTHETA += g;
2426         theta += g*gRandom->Gaus();
2427
2428       } else {
2429         pmom *= (1+fSigmap*gRandom->Gaus());
2430         phi += fSigmaPhi*gRandom->Gaus();
2431         theta += fSigmaTheta*gRandom->Gaus();
2432       }
2433       gxW=px;
2434       gyW=py;
2435       gzW=pz;
2436
2437       px=pmom*TMath::Sin(theta)*TMath::Cos(phi);
2438       py=pmom*TMath::Sin(theta)*TMath::Sin(phi);
2439       pz=pmom*TMath::Cos(theta);
2440
2441
2442       if(x*px+y*py<=0) {
2443         x=Wx;
2444         y=Wy;
2445         z=Wz;
2446         px=gxW;
2447         py=gyW;
2448         pz=gzW;
2449       }// if(x*px+y*py<=0)
2450     }
2451
2452     p = TMath::Sqrt(px*px+py*py+pz*pz);
2453
2454     particleCharge=charge[PDGtoGeantCode(pdgCode)-1];
2455     mass=massArray[PDGtoGeantCode(pdgCode)-1];
2456     mass=massArray[8-1];       //we take pion mass for all tracks
2457     //             mass=massArray[14-1];       //here we take proton mass for all tracks
2458     energy=TMath::Sqrt(p*p+mass*mass);
2459     chargeField=particleCharge*fField;
2460
2461     g=fRadLenTPC/( (x*px+y*py)/(rho*p) );
2462
2463     if(g<=0) printf(" error, g<=0: g=%f, itra=%i, x,y,px,py=%f, %f, %f, %f\n",g,itra,x,y,px,py);
2464
2465     theta0=13.6*0.001*TMath::Sqrt(g)*(1.+0.038*TMath::Log(g))*energy/(p*p);
2466
2467
2468     // start Loop on test tracks
2469     sumOfTheta=0.;
2470     for(Int_t i=0;i<4;i++) {
2471       weightTestTracksOutTof[i]=0.;
2472     }
2473
2474     itest=0;
2475     for(Int_t i=0;i<fMaxTestTracks;i++) {
2476       ntest[i]=0;
2477       testPixel[i]=0;
2478       testLength[i]=0.;
2479       testRho[i]=0.;
2480       testZ[i]=0.;
2481       testWeight[i]=0.;
2482     }
2483
2484     iPlateFirst=0;
2485     TestTracks=0;
2486     iTestTrack=0;
2487     iTestGmax=0;
2488
2489     length0=0;
2490
2491     for (indexOfTestTrack=0; indexOfTestTrack<fMaxTestTracks; indexOfTestTrack++) {
2492
2493       iTestTrack++;
2494       gpx=px;
2495       gpy=py;
2496       gpz=pz;
2497       gp=p;
2498       if(indexOfTestTrack) {
2499         gtheta=theta0;
2500         EpMulScatt(gpx,gpy,gpz,gp,gtheta);
2501
2502       } else {
2503         gtheta=0;
2504       }
2505
2506       weight=TMath::Exp(-gtheta*gtheta/(2*theta0*theta0));
2507       sumOfTheta += gtheta;
2508
2509       //    ==========================================================
2510       // Calculate crossing of the track in magnetic field with cylidrical surface
2511       // of radius RTOFINNER
2512       //   chargeField = qB, where q is a charge of a particle in units of e,
2513       //                     B is magnetic field in tesla
2514       //   see 3.3.1.1. in the book "Data analysis techniques for
2515       //   high-energy physics experiments", edited by M.Regler
2516       //   in Russian: "Metody analiza dannykh v fizicheskom eksperimente"
2517       //   Moskva, "Mir", 1993. ctr.306
2518
2519       // Initial constants
2520       rotationFactor=1.;
2521       if(chargeField<0.) rotationFactor=-1.;
2522       rotationFactor=-rotationFactor;
2523       gpt=gpx;
2524       phi0=gpy;
2525       cylcor(gpt,phi0);
2526       phi0 -= rotationFactor*TMath::Pi()*0.5;
2527       //               phi0 -= h*PID2;
2528       coslam=gpt/gp;
2529       sinlam=gpz/gp;
2530       //      helixRadius=100.*gpt/TMath::Abs(0.299792458*chargeField);
2531       helixRadius=100.*gpt/TMath::Abs(AliTOFConstants::fgkSpeedOfLight*chargeField);
2532       xHelixCenter=x-helixRadius*TMath::Cos(phi0);
2533       yHelixCenter=y-helixRadius*TMath::Sin(phi0);
2534       zHelixCenter=z;
2535       helixFactor=rotationFactor*coslam/helixRadius;
2536
2537       //   Solves the equation f(s)=r(s)-RTOFINNER=0 by the Newton's method:
2538       //   snew=s-f/f'
2539       istep=0;
2540       s=AliTOFConstants::fgkrmin-TMath::Sqrt(x*x+y*y);;
2541       do {
2542         istep++;
2543         xRespectToHelixCenter=helixRadius*TMath::Cos(phi0+s*helixFactor);
2544         yRespectToHelixCenter=helixRadius*TMath::Sin(phi0+s*helixFactor);
2545         gx=xHelixCenter+xRespectToHelixCenter;
2546         gy=yHelixCenter+yRespectToHelixCenter;
2547         gr=TMath::Sqrt(gx*gx+gy*gy);
2548         deltaRadius=gr-AliTOFConstants::fgkrmin;
2549         xp=-helixFactor*yRespectToHelixCenter;
2550         yp= helixFactor*xRespectToHelixCenter;
2551         fp=(gx*xp+gy*yp)/gr;
2552         ds=deltaRadius/fp;
2553         s -= ds;
2554         if(istep==20) {
2555           istep=0;
2556           break;
2557         }
2558       } while (TMath::Abs(ds)>0.01);
2559
2560
2561       if(istep==0) goto end;
2562
2563       //   Steps along the circle till a pad
2564       wPixel=0;
2565       wLength=0.;
2566       iplate=0;
2567       iPadAlongX=0;
2568       grho=0.;
2569       ds=fStep;
2570       gxLast=xHelixCenter+helixRadius*TMath::Cos(phi0+s*helixFactor);
2571       gyLast=yHelixCenter+helixRadius*TMath::Sin(phi0+s*helixFactor);
2572       gzLast=zHelixCenter+s*sinlam;
2573
2574
2575       do {
2576         istep++;
2577         s += ds;
2578         gx=xHelixCenter+helixRadius*TMath::Cos(phi0+s*helixFactor);
2579         gy=yHelixCenter+helixRadius*TMath::Sin(phi0+s*helixFactor);
2580         gz=zHelixCenter+s*sinlam;
2581         rho=TMath::Sqrt(gx*gx+gy*gy);
2582
2583         IsInsideThePad(gMC,gx,gy,gz,npixel,zPad,xPad);
2584
2585         iplate += npixel[1];
2586         iPadAlongX += npixel[4];
2587
2588         if(indexOfTestTrack==0 && iplate && iPlateFirst==0) {
2589           iPlateFirst=1;
2590           length0=s;
2591
2592           radius=s*3*theta0;
2593           area=TMath::Pi()*radius*radius;
2594           normR=TMath::Sqrt(gx*gx+gy*gy);
2595           normS=TMath::Sqrt((gx-gxLast)*(gx-gxLast)+
2596                      (gy-gyLast)*(gy-gyLast)+
2597                      (gz-gzLast)*(gz-gzLast));
2598
2599           cosAngl=(gx*(gx-gxLast)+gy*(gy-gyLast))/(normR*normS);
2600           if(cosAngl<0) printf(" cosAngl<0: gx=%f,gy=%f,  gxLast=%f,gyLast=%f,gzLast=%f\n",gx,gy,gxLast,gyLast,gzLast);
2601
2602           area /= cosAngl;
2603           TestTracks=(Int_t) (2*area/(AliTOFConstants::fgkXPad * AliTOFConstants::fgkZPad));
2604
2605           if(TestTracks<12) TestTracks=12;
2606
2607           // Angles of entering into the TOF plate
2608
2609           Int_t iZ=0;
2610           if(TMath::Abs(gz)>300) {
2611             iZ=4;
2612           } else if(TMath::Abs(gz)>200) {
2613             iZ=3;
2614           } else if(TMath::Abs(gz)>100) {
2615             iZ=2;
2616           } else if(TMath::Abs(gz)>0) {
2617             iZ=1;
2618           }
2619
2620
2621         } // end of if(indexOfTestTrack==0 && iplate && iPlateFirst==0)
2622
2623
2624         if(npixel[4]>0) {
2625
2626           iwork1=npixel[0];
2627           iwork2=npixel[1];
2628           iwork3=npixel[2];
2629           //               iwork4=npixel[3];
2630           iwork4=(npixel[3]-1)*AliTOFConstants::fgkNpadX+npixel[4];
2631
2632           Int_t ifirstindex=AliTOFConstants::fgkNSectors*(npixel[1]-1)+npixel[0];
2633           iMapValue=mapPixels[ifirstindex-1][iwork3-1][iwork4-1];
2634           if(iMapValue==0) {
2635             ipixel++;
2636             if(ipixel>fMaxPixels) {
2637               cout << "ipixel=" << ipixel << " > MAXPIXELS=" << fMaxPixels << endl;
2638               break;
2639             }
2640             mapPixels[ifirstindex-1][iwork3-1][iwork4-1]=ipixel;
2641             pixelArray[ipixel-1].SetGeom(iwork1,iwork2,iwork3,iwork4);
2642             iMapValue=ipixel;
2643           }
2644
2645           wPixel=iMapValue;
2646           wLength=tpclength+s;
2647           wRho=rho;
2648           wZ=gz;
2649
2650           ihit=kTOFhitFirst[ipart];
2651
2652           if(ihit) {
2653             if(indexOfTestTrack==0) {
2654               {
2655                 idelR++;
2656                 delR=TMath::Sqrt((gx-hitArray[ihit-1].X())*(gx-hitArray[ihit-1].X())+
2657                           (gy-hitArray[ihit-1].Y())*(gy-hitArray[ihit-1].Y())+
2658                           (gz-hitArray[ihit-1].Z())*(gz-hitArray[ihit-1].Z()));
2659
2660               }
2661
2662               if(delR>hitArray[ihit-1].GetRmin()) iRmin++;
2663               gxExtrap=gx;
2664               gyExtrap=gy;
2665               gzExtrap=gz;
2666             } else {
2667               delR=TMath::Sqrt((gx-gxExtrap)*(gx-gxExtrap)+
2668                         (gy-gyExtrap)*(gy-gyExtrap)+
2669                         (gz-gzExtrap)*(gz-gzExtrap));
2670             }
2671           }  //end of if(ihit)
2672
2673           break;
2674
2675         }  //end of npixel[4]
2676
2677         if(rho<grho) {
2678           istep=0;
2679           break;
2680         }
2681         grho=rho;
2682
2683         gxLast=gx;
2684         gyLast=gy;
2685         gzLast=gz;
2686
2687       } while(rho<AliTOFConstants::fgkrmax); //end of do
2688
2689
2690       if(istep>0) {
2691         if(iplate) {
2692           if(iPadAlongX==0) {
2693             istep=-3;            // holes in TOF
2694           }
2695         } else {
2696           if(TMath::Abs(gz)<AliTOFConstants::fgkMaxhZtof) {
2697             //                   if(TMath::Abs(gz)<MAXZTOF2) {
2698             istep=-2;            // PHOS and RICH holes or holes in between TOF plates
2699           } else {
2700             istep=-1;            // out of TOF on z-size
2701           }
2702         }
2703       }
2704
2705       if(iPadAlongX>0) {
2706         if(itest==0) {
2707           itest=1;
2708           ntest[itest-1]=1;
2709           testPixel[itest-1]=wPixel;
2710           testLength[itest-1]=wLength;
2711           testRho[itest-1]=wRho;
2712           testZ[itest-1]=wZ;
2713           testWeight[itest-1]=weight;
2714         } else {
2715           Int_t k;
2716           for(Int_t i=0;i<itest;i++) {
2717             k=0;
2718             if(testPixel[i]==wPixel) {
2719               k=1;
2720               ntest[i]++;
2721               testLength[i] += wLength;
2722               testRho[i] += wRho;
2723               testZ[i] += wZ;
2724               testWeight[i] += weight;
2725               break;
2726             }
2727           }  //end for i
2728           if(k==0) {
2729             itest++;
2730             ntest[itest-1]=1;
2731             testPixel[itest-1]=wPixel;
2732             testLength[itest-1]=wLength;
2733             testRho[itest-1]=wRho;
2734             testZ[itest-1]=wZ;
2735             testWeight[itest-1]=weight;
2736           }
2737         }
2738       }
2739
2740     end: ;
2741       //   Statistics
2742       if(fMatchingStyle==1) {
2743         if(istep>-4 && istep<1) weightTestTracksOutTof[-istep] ++;
2744       } else {
2745         if(istep>-4 && istep<1) weightTestTracksOutTof[-istep] += weight;
2746       }
2747
2748       if(fMatchingStyle==2) {
2749         if(indexOfTestTrack==0 && istep==0) break;
2750         if(indexOfTestTrack+1==TestTracks) break;
2751       }
2752
2753     }  //end of indexOfTestTrack
2754
2755     snr += (Float_t) (indexOfTestTrack+1);
2756
2757     //   Search for the "hole" with the largest weigth
2758     largestWeightTracksOutTof=0.;
2759     sumWeightTracksOutTof=0.;
2760     for(Int_t i=0;i<4;i++) {
2761       w=weightTestTracksOutTof[i];
2762       sumWeightTracksOutTof += w;
2763       if(w>largestWeightTracksOutTof) {
2764         largestWeightTracksOutTof=w;
2765         iMaxTestTracksOutTof=i;
2766       }
2767     }
2768
2769     itestc=itest;
2770     if(itest>0) {
2771       for(Int_t i=0;i<itest;i++) {
2772         testLength[i] /= ntest[i];
2773         testRho[i] /= ntest[i];
2774         testZ[i] /= ntest[i];
2775       }
2776       //   Search for the pixel with the largest weigth
2777       wmax=0.;
2778       wstate=0;
2779       sw=0;
2780       sGeomWeigth=0;
2781       for(Int_t i=0;i<itest;i++) {
2782         istate=pixelArray[testPixel[i]-1].GetState();
2783         fstate=0;
2784         if(istate>0) {
2785           fstate=1;
2786           wstate++;
2787         }
2788         if(fMatchingStyle==1) {
2789           sGeomWeigth += ntest[i];
2790           w=(fpadefficiency*fstate+(1.-fpadefficiency)*(1-fstate))*ntest[i];
2791           if(pixelArray[testPixel[i]-1].GetTrackMatched()>0) w *= 0.1;
2792         } else {
2793           sGeomWeigth += testWeight[i];
2794           w=(fpadefficiency*fstate+(1.-fpadefficiency)*(1-fstate))*testWeight[i];
2795           if(pixelArray[testPixel[i]-1].GetTrackMatched()>0) w *= 0.1;
2796         }
2797
2798         // weighting according to the Pulse Height (we use the square of weight)
2799         // if (fChargeFactorForMatching) w *= (pixelArray[testPixel[i]-1].GetCharge())*(pixelArray[testPixel[i]-1].GetCharge());
2800         if (fChargeFactorForMatching && fstate==1) w *= (pixelArray[testPixel[i]-1].GetCharge())*(pixelArray[testPixel[i]-1].GetCharge());
2801
2802         if(w>wmax) {
2803           wmax=w;
2804           imax=i;
2805         }
2806         sw += w;
2807       }
2808       wPixel=testPixel[imax];
2809       wLength=testLength[imax];
2810       istate=pixelArray[wPixel-1].GetState();
2811
2812       //Choose the TOF dead space
2813       //               if(istate==0 && largestWeightTracksOutTof>wmax) {
2814       //               if(istate==0 && largestWeightTracksOutTof>=sw) {
2815       if(istate==0 && sumWeightTracksOutTof>sGeomWeigth) {
2816         itestc=itest;
2817         itest=0;
2818       }
2819     }
2820
2821     if(itest>0) {
2822
2823       //   Set for MyTrack: Pixel
2824       trackArray[itrack-1].SetPixel(wPixel);
2825
2826       istate=pixelArray[wPixel-1].GetState();
2827
2828       if(istate) {
2829
2830         //   Set for MyTrack: Pixel, Length, TOF, MassTOF
2831         //fp
2832         //time=pixelArray[wPixel-1].GetTime();
2833         time=pixelArray[wPixel-1].GetRealTime();
2834         trackArray[itrack-1].SetLength(wLength);
2835         trackArray[itrack-1].SetTof(time);
2836
2837         inverseOfParticleSpeed=time/wLength;
2838         //w=900.*inverseOfParticleSpeed*inverseOfParticleSpeed-1.;
2839         w=(100.*AliTOFConstants::fgkSpeedOfLight)*(100.*AliTOFConstants::fgkSpeedOfLight)*inverseOfParticleSpeed*inverseOfParticleSpeed-1.;
2840         w2=pvtx*pvtx;
2841         Float_t squareMass=w2*w;
2842         mass=TMath::Sqrt(TMath::Abs(squareMass));
2843         if(w<0.) mass=-mass;
2844
2845         trackArray[itrack-1].SetMassTOF(mass);
2846
2847         //   Set for MyTrack: Matching
2848         match=4;
2849         //                 if(ipart==pixelArray[wPixel-1].GetTrack()) match=3;
2850         if( (ipart==pixelArray[wPixel-1].GetTrack()) && hitArray[pixelArray[wPixel-1].GetHit()-1].GetNoise()==0)match=3;
2851         imatched=pixelArray[wPixel-1].GetTrackMatched();
2852         //   Set for TOFPixel the number of matched track
2853         pixelArray[wPixel-1].SetTrackMatched(itrack);
2854
2855         if(imatched>0) {
2856           matchw=trackArray[imatched-1].GetMatching();
2857           if(match==3 && matchw==4) t34++;
2858           if(match==3 && matchw==2) t32++;
2859           if(match==4 && matchw==4) t44++;
2860           if(match==4 && matchw==3) t43++;
2861           if(match==4 && matchw==2) t42++;
2862           if(iTOFpixel[ipart]==0 || iTOFpixel[trackArray[imatched-1].GetTrack()]==0) {
2863             m20++;
2864           } else if(iTOFpixel[ipart]==iTOFpixel[trackArray[imatched-1].GetTrack()]) {
2865             m22++;
2866           } else {
2867             m23++;
2868             wPix=iTOFpixel[ipart];
2869             if(PRINT && iPrintM1==10 && iPrintM2<10) {
2870               if(iPrintM2==0) {
2871                 printf("*** test print for tracks matched with the pixel for with we had matched track\n");
2872               }
2873               iPrintM2++;
2874               printf(" m=2: ipart=%i, pdgCode=%i, p=%f, theta0=%f, %i Pixel(LP=%i,SP=%i,P=%i) \n",
2875                      ipart,pdgCode,p,theta0,wPix,
2876                      pixelArray[wPix-1].GetSector(),pixelArray[wPix-1].GetPlate(),pixelArray[wPix-1].GetPixel());
2877               printf("      mat=%i, %i Pixel(LP=%i,SP=%i,P=%i), Test(n=%i,i=%i,w=%f,z=%f), wst=%i \n",
2878                      match,wPixel,
2879                      pixelArray[wPixel-1].GetSector(),pixelArray[wPixel-1].GetPlate(),pixelArray[wPixel-1].GetPixel(),
2880                      itest,imax,wmax,testZ[imax],wstate);
2881               Int_t fstat,istat;
2882               for(Int_t i=0;i<itest;i++) {
2883                 wPix=testPixel[i];
2884                 istat=pixelArray[wPix-1].GetState();
2885                 fstat=0;
2886                 if(istat>0) fstat=1;
2887                 w=(fpadefficiency*fstat+(1.-fpadefficiency)*(1-fstat))*ntest[i];
2888                 if(istat>0)
2889                   printf("                     %i: %i Pixel(LP=%i,SP=%i,P=%i), istat=%i, ntest=%i, w=%f\n",i+1,
2890                          wPix,pixelArray[wPix-1].GetSector(),pixelArray[wPix-1].GetPlate(),pixelArray[wPix-1].GetPixel(),
2891                          istat,ntest[i],w);
2892               }
2893               printf("      mat=%i, %i Pixel \n",matchw,trackArray[imatched-1].GetPad());
2894             }
2895           }
2896           if(wstate>1) m2state++;
2897           smat[matchw+4]--;
2898           match=2;
2899           trackArray[imatched-1].SetMatching(match);
2900           smat[match+4]++;
2901
2902         }  // if(imatched>0)
2903
2904       } else {  //else if(istate)
2905
2906         match=1;
2907         if(iTOFpixel[ipart]==0) m10++;
2908         if(PRINT && iPrintM1<10) {
2909           Int_t wPix;
2910           wPix=iTOFpixel[ipart];
2911           if(wPix) {
2912             if(iPrintM1==0) {
2913               printf("*** test print for tracks fired a pixel but matched with non-fired pixel\n");
2914             }
2915             iPrintM1++;
2916             printf(" m=1: itra=%i,ipart=%i, pdgCode=%i, p=%f, theta0=%f, %i Pixel(LP=%i,SP=%i,P=%i) \n",
2917                    itra,ipart,pdgCode,p,theta0,wPix,
2918                    pixelArray[wPix-1].GetSector(),pixelArray[wPix-1].GetPlate(),pixelArray[wPix-1].GetPixel());
2919             printf("      mat=%i, %i Pixel(LP=%i,SP=%i,P=%i), Test(n=%i,i=%i,w=%f,z=%f), wst=%i \n",
2920                    match,wPixel,
2921                    pixelArray[wPixel-1].GetSector(),pixelArray[wPixel-1].GetPlate(),pixelArray[wPixel-1].GetPixel(),
2922                    itest,imax,wmax,testZ[imax],wstate);
2923
2924           }
2925         }  //end if(PRINT && iPrintM1<10)
2926
2927       }  //end if(istate)
2928
2929     } else {
2930       match=-1-iMaxTestTracksOutTof;
2931
2932     }  //end itest
2933
2934     trackArray[itrack-1].SetMatching(match);
2935     //             if(iTestGmax==1) hMTT->Fill(match);
2936     smat[match+4]++;
2937
2938     sumOfTheta /= iTestTrack;
2939
2940     itest=itestc;
2941
2942     //Test
2943     if(PRINT) {
2944       if(iTOFpixel[ipart] && match!=3) {
2945         particle = (TParticle*)gAlice->Particle(ipart);  //for V3.05
2946
2947         printf("          ipixel=%i (Sector=%i, Plate=%i, Strip=%i, Pixel=%i), fired by %i track\n",iTOFpixel[ipart],pixelArray[iTOFpixel[ipart]-1].GetSector(),pixelArray[iTOFpixel[ipart]-1].GetPlate(),pixelArray[iTOFpixel[ipart]-1].GetStrip(),pixelArray[iTOFpixel[ipart]-1].GetPixel(),pixelArray[iTOFpixel[ipart]-1].GetTrack());
2948         printf("     indexOfTestTrack=%i itest=%i weightTestTracksOutTof[4]=%f weightTestTracksOutTof[2]=%f weightTestTracksOutTof[1]=%f weightTestTracksOutTof[0]=%f\n",indexOfTestTrack,itest,weightTestTracksOutTof[3],weightTestTracksOutTof[2],weightTestTracksOutTof[1],weightTestTracksOutTof[0]);
2949         if(itest) {
2950
2951           printf("     take ipixel=%i (Sector=%i, Plate=%i, Strip=%i, Pixel=%i), (fired by %i track), match=%i\n",wPixel,pixelArray[wPixel-1].GetSector(),pixelArray[wPixel-1].GetPlate(),pixelArray[wPixel-1].GetStrip(),pixelArray[wPixel-1].GetPixel(),pixelArray[wPixel-1].GetTrack(),match);
2952         }
2953       }
2954     }
2955     if(PRINT && itra<10 ) {
2956
2957       if(itest) {
2958         cout << "      number of pixels with test tracks=" << itest << endl;
2959         for(Int_t i=0;i<itest;i++) {
2960           cout << "      " << i+1 << "  tr.=" << ntest[i] << "  w=" << testWeight[i] << "  pix.= " << testPixel[i] << " (" <<
2961             pixelArray[testPixel[i]-1].GetSector() << " " << " " << pixelArray[testPixel[i]-1].GetPlate() << " " <<
2962             pixelArray[testPixel[i]-1].GetPixel() << " )" << "  l= " << testLength[i] << " sig=" <<
2963             theta0*(testLength[i]-tpclength) << "  rho= " << testRho[i] << "  z= " << testZ[i] << endl;
2964         }
2965         cout << "      pixel=" << wPixel << "  state=" << istate << "  l=" << wLength << "  TOF=" << time << "  m=" << mass << "  match=" << match <<  endl;
2966         if(istate>0) cout << "      fired by track " << pixelArray[wPixel-1].GetTrack() << endl;
2967       }
2968     }
2969   }  //end of track
2970
2971
2972   if(itr) {
2973     printf(" %f probe tracks per 1 real track\n",snr/itr);
2974     itrack=itr;
2975   }
2976
2977
2978   cout << ipixel << " - total number of TOF pixels after matching" << endl;
2979   w=iRmin;
2980   if(idelR!=0) {
2981     w /= idelR;
2982     printf(" %i tracks with delR, %f of them have delR>Rmin \n",idelR,w);
2983   }
2984   w=iRmin1;
2985   if(idelR1!=0) {
2986     w /= idelR1;
2987     printf(" %i tracks with delR1 (|z|<175), %f of them have delR>Rmin \n",idelR1,w);
2988   }
2989   w=iRmin2;
2990   if(idelR2!=0) {
2991     w /= idelR2;
2992     printf(" %i tracks with delR2 (|z|>175), %f of them have delR>Rmin \n",idelR2,w);
2993   }
2994
2995   cout << " ********************  End of matching **********" << endl;
2996   delete [] ntest;
2997   delete [] testPixel;
2998   delete [] testLength;
2999   delete [] testRho;
3000   delete [] testZ;
3001   delete [] testWeight;
3002 }
3003
3004 //____________________________________________________________________________
3005 void AliTOFReconstructioner::FillNtuple(Int_t ntracks, AliTOFTrack* trackArray, AliTOFRecHit* hitArray, AliTOFPad* pixelArray, Int_t* iTOFpixel, Int_t* iparticle, Float_t* toftime, Int_t& ipixelLastEntry, Int_t itrack){
3006
3007   // itrack : total number of TPC selected tracks
3008   // for the caller is ntotTPCtracks
3009
3010   cout << " ********************  Start of searching non-matched fired pixels **********" << endl;
3011   const Int_t charge[48]={ 0, 1,-1, 0, 1,-1, 0, 1,-1, 0,
3012                            1,-1, 0, 1,-1, 0, 0, 0, 1, 0,
3013                            -1, 0,-1,-1, 0, 0,-1, 0, 1, 0,
3014                            1, 1, 0, 0, 1,-1, 0, 0, 1,-1,
3015                            1, 1,-1, 0, 1, 1, 2, 0};
3016
3017   Int_t macthm1=0;
3018   Int_t macthm2=0;
3019   Int_t macthm3=0;
3020   Int_t macthm4=0;
3021   Int_t macth0=0;
3022   Int_t macth1=0;
3023   Int_t macth2=0;
3024   Int_t macth3=0;
3025   Int_t macth4=0;
3026
3027
3028   Float_t smat[9],smat0[9],smat1[9];
3029   for(Int_t i=0;i<9;i++) {
3030     smat[i]=0.;
3031     smat0[i]=0.;
3032     smat1[i]=0.;
3033   }
3034
3035   Int_t nFiredPixelsNotMatchedWithTracks=0;
3036   Int_t istate;
3037   for (Int_t i=0; i<ipixelLastEntry; i++) {
3038     istate=pixelArray[i].GetState();
3039     if(istate==0) break;
3040     if(pixelArray[i].GetTrackMatched()==-1) nFiredPixelsNotMatchedWithTracks++;
3041   }
3042   printf("  %i fired pixels have not matched tracks\n",nFiredPixelsNotMatchedWithTracks);
3043   cout << " ********************  End of searching non-matched fired pixels **********" << endl;
3044
3045   Int_t nTPCHitMissing=0;
3046   for(Int_t i=0; i<ipixelLastEntry; i++) {
3047     if(pixelArray[i].GetHit()>0) {
3048       if(hitArray[pixelArray[i].GetHit()-1].GetNoise()==0) {
3049         if(iparticle[pixelArray[i].GetTrack()]==0) nTPCHitMissing++;
3050       }
3051     }
3052   }
3053   printf("  %i pixels fired by track hit without a hit on the last layer of TPC\n",nTPCHitMissing);
3054
3055
3056   Int_t icharge=0;   // total number of charged particles
3057   Int_t iprim=0;     // number of primaries
3058   Int_t ipions=0;    // number of primary pions
3059   Int_t ikaons=0;    // number of primary kaons
3060   Int_t iprotons=0;  // number of primary protons
3061   Int_t ielectrons=0;// number of primary electrons
3062   Int_t imuons=0;    // number of primary muons
3063   Float_t particleTypeArray[6][5][2];
3064
3065   for (Int_t index1=0;index1<6;index1++) {
3066     for (Int_t index2=0;index2<5;index2++) {
3067       for (Int_t index3=0;index3<2;index3++) {
3068         particleTypeArray[index1][index2][index3]=0.;
3069       }
3070     }
3071   }
3072
3073   Int_t nTOFhitsWithNoTPCTracks=0; // to be moved later when used
3074
3075   /*
3076   TObjArray *Particles = gAlice->Particles();
3077   Int_t numberOfParticles=Particles->GetEntries();
3078   cout << "numberOfParticles " << numberOfParticles << endl;
3079   // fpdbg
3080   if(numberOfParticles>fMaxAllTracks) numberOfParticles=fMaxAllTracks;
3081   */
3082
3083   for (Int_t i=0; i<ntracks; i++) { // starting loop on all primaries charged particles for current event)
3084
3085     /*
3086     cout << "particle " << i << endl;
3087     cout << "total " << numberOfParticles << endl;
3088     */
3089     TParticle *part = (TParticle *) gAlice->Particle(i);
3090     if(charge[PDGtoGeantCode(part->GetPdgCode())-1]) {
3091       icharge++;
3092       /*
3093       cout << "charged particles " << icharge << endl;
3094       */
3095       Int_t particleType=0;
3096       Int_t absPdgCode = TMath::Abs(part->GetPdgCode());
3097       switch (absPdgCode) {
3098       case 211:
3099         particleType=3;
3100         break ;
3101       case 321:
3102         particleType=2;
3103         break ;
3104       case 2212:
3105         particleType=1;
3106         break ;
3107       case 11:
3108         particleType=4;
3109         break ;
3110       case 13:
3111         particleType=5;
3112         break ;
3113       }
3114
3115       if(part->GetFirstMother() < 0) {
3116         iprim++;
3117         switch (particleType) {
3118         case 1:
3119           iprotons++;
3120           break ;
3121         case 2:
3122           ikaons++;
3123           break ;
3124         case 3:
3125           ipions++;
3126           break ;
3127         case 4:
3128           ielectrons++;
3129           break ;
3130         case 5:
3131           imuons++;
3132           break ;
3133         }
3134       }
3135
3136       Int_t match=0;
3137       Float_t wLength=-1.;
3138       Float_t time=-1.;
3139       Float_t mass=-1.;
3140
3141       Int_t itr=iparticle[i]; // get the track number for the current charged particle
3142
3143       if(iTOFpixel[i]>0 && itr==0) nTOFhitsWithNoTPCTracks++;
3144
3145       if(itr) {
3146         match=trackArray[itr-1].GetMatching();
3147         //cout << "match " << match << endl;
3148         wLength=trackArray[itr-1].GetLength();
3149         //cout << "wLength " << wLength << endl;
3150         time=trackArray[itr-1].GetTof();
3151         mass=trackArray[itr-1].GetMassTOF();
3152         //cout << "mext " << mass << endl;
3153         //        if(PRINT && (i>789 && i<800) ) cout << i << " track:  l=" << wLength << "  TOF=" << time << "  m=" << mass << "  match=" << match <<  endl;
3154         if(iTOFpixel[i]==0) {
3155           smat0[match+4]++;
3156           wLength=-wLength;
3157         }
3158       }
3159       Int_t ikparen=part->GetFirstMother();
3160       Int_t imam;
3161       if(ikparen<0) {
3162         imam=0;
3163       } else {
3164         imam=part->GetPdgCode();
3165       }
3166
3167       Int_t evnumber=gAlice->GetEvNumber();
3168       if(match==-1) macthm1++;
3169       if(match==-2) macthm2++;
3170       if(match==-3) macthm3++;
3171       if(match==-4) macthm4++;
3172       if(match==0) macth0++;
3173       if(match==1) macth1++;
3174       if(match==2) macth2++;
3175       if(match==3) macth3++;
3176       if(match==4) macth4++;
3177       foutputntuple->Fill(evnumber,part->GetPdgCode(),imam,part->Vx(),part->Vy(),part->Vz(),part->Px(),part->Py(),part->Pz(),toftime[i],wLength,match,time,mass);
3178
3179
3180
3181       // -----------------------------------------------------------
3182       // Filling 2 dimensional Histograms true time vs matched time
3183       // Filling 1 dimensional Histogram true time - matched time
3184       //
3185       // time              = time associated to the matched pad [ns]
3186       //                     it could be the average time of the cluster fired
3187       //
3188       // toftime[i]        = real time (including pulse height delays) [s]
3189       //
3190       //
3191       // if (time>=0) {
3192       // if (imam==0) TimeTrueMatched->Fill(time, toftime[i]*1E+09);
3193       // if (imam==0) DeltaTrueTimeMatched->Fill(time-toftime[i]*1E+09);
3194       // }
3195       //
3196       //---------------------------------------------------------------
3197
3198       if(match==-4 || match>0) {
3199         Int_t matchW;
3200         matchW=match;
3201         if(match==-4) matchW=1;
3202         if(particleType) {
3203           particleTypeArray[particleType-1][matchW-1][1]++;
3204           particleTypeArray[5][matchW-1][1]++;
3205           particleTypeArray[particleType-1][4][1]++;
3206           particleTypeArray[5][4][1]++;
3207           if(part->GetFirstMother() < 0) {
3208             particleTypeArray[particleType-1][matchW-1][0]++;
3209             particleTypeArray[5][matchW-1][0]++;
3210             particleTypeArray[particleType-1][4][0]++;
3211             particleTypeArray[5][4][0]++;
3212
3213             // fill histos for QA
3214             //if(particleType==3 && matchW==3) hPiWithTrueTime->Fill(sqrt((part->Px())*(part->Px())+(part->Py())*(part->Py())+(part->Pz())*(part->Pz())));
3215             //if(particleType==2 && matchW==3) hKWithTrueTime->Fill(sqrt((part->Px())*(part->Px())+(part->Py())*(part->Py())+(part->Pz())*(part->Pz())));
3216             //if(particleType==1 && matchW==3) hPWithTrueTime->Fill(sqrt((part->Px())*(part->Px())+(part->Py())*(part->Py())+(part->Pz())*(part->Pz())));
3217             //
3218
3219           } // close if(part->GetFirstMother() < 0)
3220         } // close if(particleType)
3221       } // close if(match==-4 || match>0)
3222     } // close if(charge[PDGtoGeantCode(part->GetPdgCode())-1])
3223   } // close for (Int_t i=0; i<ntracks; i++) {
3224
3225   cout <<  " macthm1 " << macthm1 << endl;
3226   cout <<  " macthm2 " << macthm2 << endl;
3227   cout <<  " macthm3 " << macthm3 << endl;
3228   cout <<  " macthm4 " << macthm4 << endl;
3229   cout <<  " macth0 " << macth0 << endl;
3230   cout <<  " macth1 " << macth1 << endl;
3231   cout <<  " macth2 " << macth2 << endl;
3232   cout <<  " macth3 " << macth3 << endl;
3233   cout <<  " macth4 " << macth4 << endl;
3234
3235
3236   printf(" %i TOF hits have not TPC track\n",nTOFhitsWithNoTPCTracks);
3237   Int_t imatch=0;
3238   for(Int_t i=0;i<9;i++) {
3239     if(itrack) cout << "   " << smat[i]*100./itrack << " % of them (="<<smat[i]<<") have match=" << i-4 << "  " << smat0[i] << " have not TOF hits" << endl;
3240     if(i==0 || i>4) imatch += (Int_t) (smat[i]);
3241
3242     //     cout << "   " << smat[i]*100./itrack << " % of them (="<<smat[i]<<") have match=" << i-4 << "  " << smat0[i] << " have not TOF hits" << "  " << smat1[i] << " have (r.p)<0 for first hit" << endl;
3243   }
3244
3245   if(fdbg){
3246     /*
3247     cout << " nparticles = " << numberOfParticles << "  charged = " << icharge << "  prim.=" << iprim << endl;
3248     */
3249     cout << " nparticles = " << ntracks << "  charged = " << icharge << "  prim.=" << iprim << endl;
3250     cout << ipions << " - primary pions" << endl;
3251     cout << ikaons << " - primary kaons" << endl;
3252     cout << iprotons << " - primary protons" << endl;
3253     cout << ielectrons << " - primary electrons" << endl;
3254     cout << imuons << " - primary muons reached TPC" << endl;
3255     cout << " ********** " << imatch << " TPC tracks are matched with TOF pixels (incl.match=-4) **********" << endl;
3256   }
3257
3258   /*
3259     Float_t PrimaryInBarrel[6],Acceptance[6];
3260     PrimaryInBarrel[0]=ipions;
3261     PrimaryInBarrel[1]=ikaons;
3262     PrimaryInBarrel[2]=iprotons;
3263     PrimaryInBarrel[3]=ielectrons;
3264     PrimaryInBarrel[4]=imuons;
3265     PrimaryInBarrel[5]=ipions+ikaons+iprotons+ielectrons+imuons;
3266
3267     //   cout << "   TPC acceptance for the primary species: 1-p, 2-K, 3-pi, 4-e, 5-mu, 6-all" << endl;
3268     for(Int_t i=0; i<6; i++) {
3269      Acceptance[i]=0.;
3270      if(PrimaryInBarrel[i]) Acceptance[i]=100.*PrimaryReachedTPC[i]/PrimaryInBarrel[i];
3271      //hTPCacceptance[i]->Fill(Acceptance[i]);
3272      //     printf(" species: %i    %f\n",i+1,Acceptance[i]);
3273      }
3274
3275      //   cout << "   TOF acceptance for the primary species: 1-p, 2-K, 3-pi, 4-e, 5-mu, 6-all" << endl;
3276      for(Int_t i=0; i<6; i++) {
3277      Acceptance[i]=0.;
3278      if(PrimaryInBarrel[i]) Acceptance[i]=100.*PrimaryReachedTOF[i]/PrimaryInBarrel[i];
3279      //hTOFacceptance[i]->Fill(Acceptance[i]);
3280      //     printf(" species: %i    %f\n",i+1,Acceptance[i]);
3281      }
3282
3283    for (Int_t index1=0;index1<6;index1++) {
3284    for (Int_t index2=0;index2<4;index2++) {
3285    for (Int_t index3=0;index3<2;index3++) {
3286    if(particleTypeArray[index1][4][index3]) particleTypeArray[index1][index2][index3]=
3287                                                     100.*particleTypeArray[index1][index2][index3]/particleTypeArray[index1][4][index3];
3288                                                     }
3289      }
3290      }
3291
3292    cout << "species: 1-p, 2-K, 3-pi, 4-e, 5-mu, 6-all" << endl;
3293    cout << " matched pixels(%): 1-unfired 2-double 3-true 4-wrong 5-total number of tracks" << endl;
3294
3295    cout << "  primary tracks:" << endl;
3296    for (Int_t i=0;i<6;i++) {
3297      cout << i+1 << "  " << particleTypeArray[i][0][0] << "  " << particleTypeArray[i][1][0] << "  " << particleTypeArray[i][2][0] << "  " << particleTypeArray[i][3][0] << "  " << particleTypeArray[i][4][0] << endl;
3298      }
3299
3300      //   cout<<"      contam.for all prim.(%)="<<100*particleTypeArray[5][3][0]/(particleTypeArray[5][3][0]+particleTypeArray[5][2][0])<<endl;
3301
3302      cout << "  all tracks:" << endl;
3303      for (Int_t i=0;i<6;i++) {
3304      cout << i+1 << "  " << particleTypeArray[i][0][1] << "  " << particleTypeArray[i][1][1] << "  " << particleTypeArray[i][2][1] << "  " << particleTypeArray[i][3][1] << "  " << particleTypeArray[i][4][1] << endl;
3305    }
3306
3307    //   cout<<"      contam.for all (%)="<<100*particleTypeArray[5][3][1]/(particleTypeArray[5][3][1]+particleTypeArray[5][2][1])<<endl;
3308    //  printf(" t34=%i, t32=%i, t44=%i, t43=%i, t42=%i\n",t34,t32,t44,t43,t42);
3309    //  printf(" m10=%f, m20=%f, m22=%f, m23=%f, m2state=%i\n",m10,m20,m22,m23,m2state);
3310   */
3311 }