PHOS/AliPHOS.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /*
  17 $Log$
  18 Revision 1.10  1999/12/09 14:57:51  fca
  19 Removal of obsolete PHOS code
  20
  21 Revision 1.9  1999/11/08 07:12:31  fca
  22 Minor corrections thanks to I.Hrivnacova
  23
  24 Revision 1.8  1999/09/29 09:24:23  fca
  25 Introduction of the Copyright and cvs Log
  26
  27 */
  28
  29 ////////////////////////////////////////////////
  30 //  Manager and hits classes for set:PHOS     //
  31 ////////////////////////////////////////////////
  32
  33 // --- ROOT system ---
  34 #include "TH1.h"
  35 #include "TRandom.h"
  36 #include "TFile.h"
  37 #include "TTree.h"
  38 #include "TBRIK.h"
  39 #include "TNode.h"
  40 #include "TMath.h"
  41
  42 // --- Standard library ---
  43 #include <stdio.h>
  44 #include <string.h>
  45 #include <stdlib.h>
  46 #include <iostream.h>
  47
  48 // --- galice header files ---
  49 #include "AliPHOS.h"
  50 #include "AliRun.h"
  51
  52 //______________________________________________________________________________
  53
  54
  55 ClassImp(AliPHOS)
  56
  57 //______________________________________________________________________________
  58
  59 AliPHOS::~AliPHOS(void)
  60 {
  61   delete fHits;                 // 28.12.1998
  62   delete fTreePHOS;             // 28.12.1998
  63   fCradles->Delete();
  64   delete fCradles;
  65 }
  66
  67 //______________________________________________________________________________
  68
  69 AliPHOS::AliPHOS() :
  70          fDebugLevel            (0),
  71          fTreePHOS              (NULL),
  72          fBranchNameOfCradles   ("AliPHOSCradles"),
  73          fTreeName              ("PHOS")
  74 {
  75    fIshunt   = 0;
  76
  77   if( NULL==(fCradles=new TObjArray) )
  78   {
  79     Error("AliPHOS","Can not create fCradles");
  80     exit(1);
  81   }
  82   DefPars();
  83 }
  84
  85 //______________________________________________________________________________
  86
  87 AliPHOS::AliPHOS(const char *name, const char *title)
  88        : AliDetector            (name,title),
  89          fDebugLevel            (0),
  90          fTreePHOS              (NULL),
  91          fBranchNameOfCradles   ("AliPHOSCradles"),
  92          fTreeName              ("PHOS")
  93 {
  94 //Begin_Html
  95 /*
  96 <img src="picts/aliphos.gif">
  97 */
  98 //End_Html
  99
 100    fHits   = new TClonesArray("AliPHOShit",  405);
 101
 102    fIshunt     =  0;
 103
 104    SetMarkerColor(kGreen);
 105    SetMarkerStyle(2);
 106    SetMarkerSize(0.4);
 107
 108   if( NULL==(fCradles=new TObjArray) ) {
 109      Error("AliPHOS","Can not create fCradles");
 110      exit(1);
 111   }
 112   DefPars();
 113 }
 114
 115 //______________________________________________________________________________
 116
 117 void AliPHOS::DefPars()
 118 {
 119       PHOSflags[0]=0;
 120       PHOSflags[1]=1;
 121       PHOSflags[2]=0;
 122       PHOSflags[3]=0;
 123       PHOSflags[4]=0;
 124       PHOSflags[5]=0;
 125       PHOSflags[6]=0;
 126       PHOSflags[7]=0;
 127       PHOSflags[8]=0;
 128       PHOScell[0]=2.2;
 129       PHOScell[1]=18.;
 130       PHOScell[2]=0.01;
 131       PHOScell[3]=0.01;
 132       PHOScell[4]=1.0;
 133       PHOScell[5]=0.1;
 134       PHOScell[6]=0.;
 135       PHOScell[7]=0.;
 136       PHOScell[8]=0.;
 137       PHOSradius=460.;
 138       PHOSsize[0]=104;
 139       PHOSsize[1]=88;
 140       PHOSsize[2]=4;
 141       PHOScradlesA=0.;
 142       PHOSextra[0]=0.001;
 143       PHOSextra[1]=6.95;
 144       PHOSextra[2]=4.;
 145       PHOSextra[3]=5.;
 146       PHOSextra[4]=2.;
 147       PHOSextra[5]=0.06;
 148       PHOSextra[6]=10.;
 149       PHOSextra[7]=3.;
 150       PHOSextra[8]=1.;
 151       PHOSTXW[0]=209.;
 152       PHOSTXW[1]=71.;
 153       PHOSTXW[2]=250.;
 154       PHOSAIR[0]=206.;
 155       PHOSAIR[1]=66.;
 156       PHOSAIR[2]=244.;
 157       PHOSFTI[0]=214.6;
 158       PHOSFTI[1]=80.;
 159       PHOSFTI[2]=260.;
 160       PHOSFTI[3]=467.;
 161 }
 162 //______________________________________________________________________________
 163
 164 void AliPHOS::AddHit(Int_t track, Int_t *vol, Float_t *hits)
 165 {
 166   TClonesArray &lhits = *fHits;
 167   new(lhits[fNhits++]) AliPHOShit(fIshunt,track,vol,hits);
 168 }
 169
 170 //___________________________________________
 171 void AliPHOS::BuildGeometry()
 172 {
 173
 174   TNode *Node, *Top;
 175
 176   const int kColorPHOS = kRed;
 177   //
 178   Top=gAlice->GetGeometry()->GetNode("alice");
 179
 180
 181   // PHOS
 182   Float_t pphi=12.9399462;
 183   new TRotMatrix("rot988","rot988",90,-3*pphi,90,90-3*pphi,0,0);
 184   new TRotMatrix("rot989","rot989",90,-  pphi,90,90-  pphi,0,0);
 185   new TRotMatrix("rot990","rot990",90,   pphi,90,90+  pphi,0,0);
 186   new TRotMatrix("rot991","rot991",90, 3*pphi,90,90+3*pphi,0,0);
 187   new TBRIK("S_PHOS","PHOS box","void",107.3,40,130);
 188   Top->cd();
 189   Node = new TNode("PHOS1","PHOS1","S_PHOS",-317.824921,-395.014343,0,"rot988");
 190   Node->SetLineColor(kColorPHOS);
 191   fNodes->Add(Node);
 192   Top->cd();
 193   Node = new TNode("PHOS2","PHOS2","S_PHOS",-113.532333,-494.124908,0,"rot989");
 194   fNodes->Add(Node);
 195   Node->SetLineColor(kColorPHOS);
 196   Top->cd();
 197   Node = new TNode("PHOS3","PHOS3","S_PHOS", 113.532333,-494.124908,0,"rot990");
 198   Node->SetLineColor(kColorPHOS);
 199   fNodes->Add(Node);
 200   Top->cd();
 201   Node = new TNode("PHOS4","PHOS4","S_PHOS", 317.824921,-395.014343,0,"rot991");
 202   Node->SetLineColor(kColorPHOS);
 203   fNodes->Add(Node);
 204 }
 205
 206 //___________________________________________
 207 void AliPHOS::CreateMaterials()
 208 {
 209 // *** DEFINITION OF AVAILABLE PHOS MATERIALS ***
 210
 211 // CALLED BY : PHOS_MEDIA
 212 // ORIGIN    : NICK VAN EIJNDHOVEN
 213
 214
 215
 216     Int_t   ISXFLD = gAlice->Field()->Integ();
 217     Float_t SXMGMX = gAlice->Field()->Max();
 218
 219 // --- The PbWO4 crystals ---
 220     Float_t ax[3] = { 207.19,183.85,16. };
 221     Float_t zx[3] = { 82.,74.,8. };
 222     Float_t wx[3] = { 1.,1.,4. };
 223     Float_t dx    = 8.28;
 224 // --- Stainless Steel ---
 225     Float_t as[5] = { 55.847,12.011,51.9961,58.69,28.0855 };
 226     Float_t zs[5] = { 26.,6.,24.,28.,14. };
 227     Float_t ws[5] = { .6392,8e-4,.2,.14,.02 };
 228     Float_t ds    = 8.;
 229 // --- The polysterene scintillator (CH) ---
 230     Float_t ap[2] = { 12.011,1.00794 };
 231     Float_t zp[2] = { 6.,1. };
 232     Float_t wp[2] = { 1.,1. };
 233     Float_t dp    = 1.032;
 234 // --- Tyvek (CnH2n)
 235     Float_t at[2] = { 12.011,1.00794 };
 236     Float_t zt[2] = { 6.,1. };
 237     Float_t wt[2] = { 1.,2. };
 238     Float_t dt    = .331;
 239 // --- Polystyrene foam ---
 240     Float_t af[2] = { 12.011,1.00794 };
 241     Float_t zf[2] = { 6.,1. };
 242     Float_t wf[2] = { 1.,1. };
 243     Float_t df    = .12;
 244 //--- Foam thermo insulation (actual chemical composition unknown yet!) ---
 245     Float_t ati[2] = { 12.011,1.00794 };
 246     Float_t zti[2] = { 6.,1. };
 247     Float_t wti[2] = { 1.,1. };
 248     Float_t dti    = .1;
 249 // --- Textolit (actual chemical composition unknown yet!) ---
 250     Float_t atx[2] = { 12.011,1.00794 };
 251     Float_t ztx[2] = { 6.,1. };
 252     Float_t wtx[2] = { 1.,1. };
 253     Float_t dtx    = 1.83;
 254
 255     Int_t *idtmed = fIdtmed->GetArray()-699;
 256
 257     AliMixture(  0, "PbWO4$",          ax, zx, dx, -3, wx);
 258     AliMixture(  1, "Polystyrene$",    ap, zp, dp, -2, wp);
 259     AliMaterial( 2, "Al$",             26.98, 13., 2.7, 8.9, 999);
 260 // ---                                Absorption length^ is ignored ---
 261     AliMixture(  3, "Tyvek$",           at, zt, dt, -2, wt);
 262     AliMixture(  4, "Foam$",            af, zf, df, -2, wf);
 263     AliMixture(  5, "Stainless Steel$", as, zs, ds, 5, ws);
 264     AliMaterial( 6, "Si$",              28.09, 14., 2.33, 9.36, 42.3);
 265     AliMixture(  7, "Thermo Insul.$",   ati, zti, dti, -2, wti);
 266     AliMixture(  8, "Textolit$",        atx, ztx, dtx, -2, wtx);
 267     AliMaterial(99, "Air$",             14.61, 7.3, .001205, 30420., 67500);
 268
 269     AliMedium(0, "PHOS Xtal    $", 0, 1, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
 270     AliMedium(2, "Al parts     $", 2, 0, ISXFLD, SXMGMX, 10., .1, .1, .001, .001);
 271     AliMedium(3, "Tyvek wrapper$", 3, 0, ISXFLD, SXMGMX, 10., .1, .1, .001, .001);
 272     AliMedium(4, "Polyst. foam $", 4, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
 273     AliMedium(5, "Steel cover  $", 5, 0, ISXFLD, SXMGMX, 10., .1, .1, 1e-4, 1e-4);
 274     AliMedium(6, "Si PIN       $", 6, 0, ISXFLD, SXMGMX, 10., .1, .1, .01, .01);
 275     AliMedium(7, "Thermo Insul.$", 7, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
 276     AliMedium(8, "Textolit     $", 8, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
 277     AliMedium(99, "Air          $",99, 0, ISXFLD, SXMGMX, 10., 1., .1, .1, 10);
 278
 279 // --- Generate explicitly delta rays in the steel cover ---
 280     gMC->Gstpar(idtmed[704], "LOSS", 3.);
 281     gMC->Gstpar(idtmed[704], "DRAY", 1.);
 282 // --- and in aluminium parts ---
 283     gMC->Gstpar(idtmed[701], "LOSS", 3.);
 284     gMC->Gstpar(idtmed[701], "DRAY", 1.);
 285 }
 286
 287 //______________________________________________________________________________
 288
 289 void AliPHOS::AddPHOSCradles()
 290 {
 291   Int_t i;
 292   for(i=0;i<GetCradlesAmount();i++) {
 293
 294     int n = fCradles->GetEntries();
 295     fCradles->Add(new AliPHOSCradle( IsVersion(),            // geometry.
 296                                      GetCrystalSideSize    (),
 297                                      GetCrystalLength      (),
 298                                      GetWrapThickness      (),
 299                                      GetAirThickness       (),
 300                                      GetPIN_SideSize       (),
 301                                      GetPIN_Length         (),
 302                                      GetRadius             (),
 303                                      GetNz                 (),
 304                                      GetNphi               (),
 305                                      GetCradleAngle        (i)));
 306
 307     if( n+1 != fCradles->GetEntries() || NULL == fCradles->At(n) )
 308       {
 309         cout << "  Can not create or add AliPHOSCradle.\n";
 310         exit(1);
 311       }
 312   }
 313 }
 314
 315 //______________________________________________________________________________
 316
 317 Int_t AliPHOS::DistancetoPrimitive(Int_t , Int_t )
 318 {
 319    return 9999;
 320 }
 321
 322 //___________________________________________
 323 void AliPHOS::Init()
 324 {
 325   Int_t i;
 326   //
 327   printf("\n");
 328   for(i=0;i<35;i++) printf("*");
 329   printf(" PHOS_INIT ");
 330   for(i=0;i<35;i++) printf("*");
 331   printf("\n");
 332   //
 333   // Here the ABSO initialisation code (if any!)
 334   for(i=0;i<80;i++) printf("*");
 335   printf("\n");
 336 }
 337
 338 //______________________________________________________________________________
 339
 340 void AliPHOS::MakeBranch(Option_t *)
 341 {
 342 // ROOT output initialization to ROOT file.
 343 //
 344 // AliDetector::MakeBranch()  is always called.
 345 //
 346 // There will be also special tree "PHOS" with one branch "AliPHOSCradles"
 347 // if it was set next flag in the galice card file:
 348 //  * PHOSflags:    YES: X<>0   NO: X=0
 349 //  * PHOSflags(1) : -----X.  Create branch for TObjArray of AliPHOSCradle
 350 //     Examples:
 351 //     PHOSflags      1.
 352 //     PHOSflags 636301.
 353 // In that case special bit CradlesBranch_Bit will be set for AliPHOS
 354
 355   AliDetector::MakeBranch();
 356
 357   int i;
 358   float t = GetPHOS_flag(0)/10;
 359   i = (int) t;
 360   i = (int) ((t-i)*10);
 361   if( !i )
 362     return;
 363
 364   SetBit(CradlesBranch_Bit);
 365
 366   if( NULL==(fTreePHOS=new TTree(fTreeName.Data(),"PHOS events tree")) )
 367   {
 368     Error("MakeBranch","Can not create TTree");
 369     exit(1);
 370   }
 371
 372   if( NULL==fTreePHOS->GetCurrentFile() )
 373   {
 374     Error("MakeBranch","There is no opened ROOT file");
 375     exit(1);
 376   }
 377
 378   // Create a new branch in the current Root Tree.
 379
 380   if( NULL==fTreePHOS->Branch(fBranchNameOfCradles.Data(),"TObjArray",&fCradles,4000,0) )
 381   {
 382     Error("MakeBranch","Can not create branch");
 383     exit(1);
 384   }
 385
 386   printf("The branch %s has been created\n",fBranchNameOfCradles.Data());
 387 }
 388
 389 //______________________________________________________________________________
 390
 391 void AliPHOS::SetTreeAddress(void)
 392 {
 393 // ROOT input initialization.
 394 //
 395 // AliDetector::SetTreeAddress()  is always called.
 396 //
 397 // If CradlesBranch_Bit is set (see AliPHOS::MakeBranch) than fTreePHOS is
 398 // initilized.
 399
 400   AliDetector::SetTreeAddress();
 401
 402   if( !TestBit(CradlesBranch_Bit) )
 403     return;
 404
 405   if( NULL==(fTreePHOS=(TTree*)gDirectory->Get((char*)(fTreeName.Data()))  ) )
 406   {
 407     Error("SetTreeAddress","Can not find Tree \"%s\"\n",fTreeName.Data());
 408     exit(1);
 409   }
 410
 411   TBranch *branch = fTreePHOS->GetBranch(fBranchNameOfCradles.Data());
 412   if( NULL==branch )
 413   {
 414     Error("SetTreeAddress","Can not find branch %s in TTree:%s",fBranchNameOfCradles.Data(),fTreeName.Data());
 415     exit(1);
 416   }
 417
 418   branch->SetAddress(&fCradles);
 419 }
 420
 421 //______________________________________________________________________________
 422
 423 AliPHOSCradle *AliPHOS::GetCradleOfTheParticle(const TVector3 &p,const TVector3 &v) const
 424 {
 425 // For a given direction 'p' and source point 'v' returns pointer to AliPHOSCradle
 426 // in that direction or NULL if AliPHOSCradle was not found.
 427
 428   for( int m=0; m<fCradles->GetEntries(); m++ )
 429   {
 430     AliPHOS *PHOS = (AliPHOS *)this;     // Removing 'const'...
 431     AliPHOSCradle *cradle = (AliPHOSCradle *)PHOS->fCradles->operator[](m);
 432
 433     float x,y,l;
 434     const float d = cradle->GetRadius();
 435     cradle->GetXY(p,v,d,x,y,l);
 436
 437     if( l>0 && TMath::Abs(x)<cradle->GetNz  ()*cradle->GetCellSideSize()/2
 438             && TMath::Abs(y)<cradle->GetNphi()*cradle->GetCellSideSize()/2 )
 439       return cradle;
 440   }
 441
 442   return NULL;
 443 }
 444
 445 //______________________________________________________________________________
 446
 447 void AliPHOS::Reconstruction(Float_t signal_step, UInt_t min_signal_reject)
 448 {
 449 // Call AliPHOSCradle::Reconstruction(Float_t signal_step, UInt_t min_signal_reject)
 450 // for all AliPHOSCradles.
 451
 452   for( int i=0; i<fCradles->GetEntries(); i++ )
 453     GetCradle(i).Reconstruction(signal_step,min_signal_reject);
 454 }
 455
 456 //______________________________________________________________________________
 457
 458 void AliPHOS::ResetDigits(void)
 459 {
 460   AliDetector::ResetDigits();
 461
 462   for( int i=0; i<fCradles->GetEntries(); i++ )
 463     ((AliPHOSCradle*)(*fCradles)[i]) -> Clear();
 464 }
 465
 466 //______________________________________________________________________________
 467
 468 void AliPHOS::FinishEvent(void)
 469 {
 470 // Called at the end of each 'galice' event.
 471
 472   if( NULL!=fTreePHOS )
 473     fTreePHOS->Fill();
 474 }
 475
 476 //______________________________________________________________________________
 477
 478 void AliPHOS::FinishRun(void)
 479 {
 480 }
 481
 482 //______________________________________________________________________________
 483
 484 void AliPHOS::Print(Option_t *opt)
 485 {
 486 // Print PHOS information.
 487 // For each AliPHOSCradle the function AliPHOSCradle::Print(opt) is called.
 488
 489   AliPHOS &PHOS = *(AliPHOS *)this;     // Removing 'const'...
 490
 491   for( int i=0; i<fCradles->GetEntries(); i++ )
 492   {
 493     printf("PHOS cradle %d from %d\n",i+1, fCradles->GetEntries());
 494     PHOS.GetCradle(i).Print(opt);
 495     printf( "---------------------------------------------------\n");
 496   }
 497 }
 498
 499 //______________________________________________________________________________
 500 void AliPHOS::SetFlags(Float_t p1,Float_t p2,Float_t p3,Float_t p4,
 501                        Float_t p5,Float_t p6,Float_t p7,Float_t p8,Float_t p9)
 502 {
 503   PHOSflags[0]=p1;
 504   PHOSflags[1]=p2;
 505   PHOSflags[2]=p3;
 506   PHOSflags[3]=p4;
 507   PHOSflags[4]=p5;
 508   PHOSflags[5]=p6;
 509   PHOSflags[6]=p7;
 510   PHOSflags[7]=p8;
 511   PHOSflags[8]=p9;
 512 }
 513
 514 //______________________________________________________________________________
 515 void AliPHOS::SetCell(Float_t p1,Float_t p2,Float_t p3,Float_t p4,
 516                        Float_t p5,Float_t p6,Float_t p7,Float_t p8,Float_t p9)
 517 {
 518   PHOScell[0]=p1;
 519   PHOScell[1]=p2;
 520   PHOScell[2]=p3;
 521   PHOScell[3]=p4;
 522   PHOScell[4]=p5;
 523   PHOScell[5]=p6;
 524   PHOScell[6]=p7;
 525   PHOScell[7]=p8;
 526   PHOScell[8]=p9;
 527 }
 528
 529 //______________________________________________________________________________
 530 void AliPHOS::SetRadius(Float_t radius)
 531 {
 532    PHOSradius=radius;
 533 }
 534
 535 //______________________________________________________________________________
 536 void AliPHOS::SetCradleSize(Int_t nz, Int_t nphi, Int_t ncradles)
 537 {
 538    PHOSsize[0]=nz;
 539    PHOSsize[1]=nphi;
 540    PHOSsize[2]=ncradles;
 541 }
 542
 543 //______________________________________________________________________________
 544 void AliPHOS::SetCradleA(Float_t angle)
 545 {
 546    PHOScradlesA=angle;
 547 }
 548
 549 //______________________________________________________________________________
 550 void AliPHOS::SetExtra(Float_t p1,Float_t p2,Float_t p3,Float_t p4,
 551                        Float_t p5,Float_t p6,Float_t p7,Float_t p8,Float_t p9)
 552 {
 553    PHOSextra[0] = p1;
 554    PHOSextra[1] = p2;
 555    PHOSextra[2] = p3;
 556    PHOSextra[3] = p4;
 557    PHOSextra[4] = p5;
 558    PHOSextra[5] = p6;
 559    PHOSextra[6] = p7;
 560    PHOSextra[7] = p8;
 561    PHOSextra[8] = p9;
 562 }
 563
 564 //______________________________________________________________________________
 565 void AliPHOS::SetTextolitWall(Float_t dx, Float_t dy, Float_t dz)
 566 {
 567    PHOSTXW[0] = dx;
 568    PHOSTXW[1] = dy;
 569    PHOSTXW[2] = dz;
 570 }
 571
 572 //______________________________________________________________________________
 573 void AliPHOS::SetInnerAir(Float_t dx, Float_t dy, Float_t dz)
 574 {
 575    PHOSAIR[0] = dx;
 576    PHOSAIR[1] = dy;
 577    PHOSAIR[2] = dz;
 578 }
 579
 580 //______________________________________________________________________________
 581 void AliPHOS::SetFoam(Float_t dx, Float_t dy, Float_t dz, Float_t dr)
 582 {
 583    PHOSFTI[0] = dx;
 584    PHOSFTI[1] = dy;
 585    PHOSFTI[2] = dz;
 586    PHOSFTI[3] = dr;
 587 }
 588
 589 ClassImp(AliPHOSCradle)
 590
 591 //______________________________________________________________________________
 592
 593 AliPHOSCradle::AliPHOSCradle(void) {}
 594
 595 //______________________________________________________________________________
 596
 597 AliPHOSCradle::AliPHOSCradle( int   Geometry           ,
 598                               float CrystalSideSize    ,
 599                               float CrystalLength      ,
 600                               float WrapThickness      ,
 601                               float AirThickness       ,
 602                               float PIN_SideSize       ,
 603                               float PIN_Length         ,
 604                               float Radius             ,
 605                               int   Nz                 ,
 606                               int   Nphi               ,
 607                               float Angle              ) :
 608     fGeometry                   (Geometry),
 609 //  fCellEnergy                 (),
 610 //  fChargedTracksInPIN         (),
 611     fCrystalSideSize            (CrystalSideSize),
 612     fCrystalLength              (CrystalLength),
 613     fWrapThickness              (WrapThickness),
 614     fAirThickness               (AirThickness),
 615     fPIN_SideSize               (PIN_SideSize),
 616     fPIN_Length                 (PIN_Length),
 617     fRadius                     (Radius),
 618     fNz                         (Nz),
 619     fNphi                       (Nphi),
 620     fPhi                        (Angle)
 621 {
 622         fCellEnergy         = TH2F("CellE","Energy deposition in a cells",fNz,0,fNz,fNphi,0,fNphi);
 623         fCellEnergy           .SetDirectory(0);
 624         fChargedTracksInPIN = TH2S("PINCtracks","Amount of charged tracks in PIN",fNz,0,fNz,fNphi,0,fNphi);
 625         fChargedTracksInPIN   .SetDirectory(0);
 626 }
 627
 628 //______________________________________________________________________________
 629
 630 AliPHOSCradle::~AliPHOSCradle(void)        // 28.12.1998
 631 {
 632   fGammasReconstructed.Delete();
 633   fParticles          .Delete();
 634 }
 635
 636 //______________________________________________________________________________
 637
 638 void AliPHOSCradle::Clear(Option_t *)
 639 {
 640 // Clear digit. information.
 641
 642   fCellEnergy              .Reset();
 643   fChargedTracksInPIN      .Reset();
 644   GetParticles()           .Delete();
 645   GetParticles()           .Compress();
 646   GetGammasReconstructed() .Delete();
 647   GetGammasReconstructed() .Compress();
 648
 649 }
 650
 651 //______________________________________________________________________________
 652
 653 void AliPHOSCradle::GetXY(const TVector3 &p,const TVector3 &v,float R,float &x,float &y,float &l) const
 654 {
 655 // This function calculates hit position (x,y) in the CRADLE cells plain from particle in
 656 // the direction given by 'p' (not required to be normalized) and start point
 657 // given by 3-vector 'v'. So the particle trajectory is   t(l) = v + p*l
 658 // were 'l' is a number (distance from 'v' to CRADLE cells plain) and 't' is resulting
 659 // three-vector of trajectory point.
 660 //
 661 // After the call to this function user should test that l>=0 (the particle HITED the
 662 // plain) and (x,y) are in the region of CRADLE:
 663 //
 664 // Example:
 665 //   AliPHOSCradle cradle(......);
 666 //   TVector3 p(....), v(....);
 667 //   Float_t x,y,l;
 668 //   cradle.GetXY(p,v,x,y,l);
 669 //   if( l<0 || TMath::Abs(x)>cradle.GetNz()  *cradle.GetCellSideSize()/2
 670 //           || TMath::Abs(y)>cradle.GetNphi()*cradle.GetCellSideSize()/2 )
 671 //     cout << "Outside the CRADLE.\n";
 672
 673   // We have to create three vectors:
 674   //    s  - central point on the PHOS surface
 675   //    n1 - first vector in CRADLE plain
 676   //    n2 - second vector in CRADLE plain
 677   // This three vectors are orthonormalized.
 678
 679   double phi = fPhi/180*TMath::Pi();
 680   TVector3        n1(   0.0      ,   0.0      , 1.0 ),   // Z direction (X)
 681                   n2(  -sin(phi) ,   cos(phi) , 0 ),   // around beam (Y)
 682                   s ( R*cos(phi) , R*sin(phi) , 0 );   // central point
 683
 684   const double l1_min = 1e-2;
 685   double l1,
 686          p_n1 = p*n1,        // * - scalar product.
 687          p_n2 = p*n2,
 688          v_n1 = v*n1,
 689          v_n2 = v*n2,
 690          s_n1 = s*n1, // 0
 691          s_n2 = s*n2; // 0
 692
 693   if      ( TMath::Abs(l1=p.X()-n1.X()*p_n1-n2.X()*p_n2)>l1_min )
 694     { l = (-v.X()+s.X()+n1.X()*(v_n1-s_n1)+n2.X()*(v_n2-s_n2))/l1; }
 695   else if ( TMath::Abs(l1=p.Y()-n1.Y()*p_n1-n2.Y()*p_n2)>l1_min )
 696     { l = (-v.Y()+s.Y()+n1.Y()*(v_n1-s_n1)+n2.Y()*(v_n2-s_n2))/l1; }
 697   else if ( TMath::Abs(l1=p.Z()-n1.Z()*p_n1-n2.Z()*p_n2)>l1_min )
 698     { l = (-v.Z()+s.Z()+n1.Z()*(v_n1-s_n1)+n2.Z()*(v_n2-s_n2))/l1; }
 699
 700 //         double lx = (-v.X()+s.X()+n1.X()*(v.dot(n1)-s.dot(n1))+n2.X()*(v.dot(n2)-s.dot(n2)))/
 701 //                     (p.X()-n1.X()*p.dot(n1)-n2.X()*p.dot(n2)),
 702 //                ly = (-v.Y()+s.Y()+n1.Y()*(v.dot(n1)-s.dot(n1))+n2.Y()*(v.dot(n2)-s.dot(n2)))/
 703 //                     (p.Y()-n1.Y()*p.dot(n1)-n2.Y()*p.dot(n2)),
 704 //                lz = (-v.Z()+s.Z()+n1.Z()*(v.dot(n1)-s.dot(n1))+n2.Z()*(v.dot(n2)-s.dot(n2)))/
 705 //                     (p.Z()-n1.Z()*p.dot(n1)-n2.Z()*p.dot(n2));
 706 //         cout.form("x: %g %g %g %g\n",lx,-v.X()+s.X()+n1.X()*(v.dot(n1)-s.dot(n1))+n2.X()*(v.dot(n2)-s.dot(n2)),p.X()-n1.X()*p.dot(n1)-n2.X()*p.dot(n2));
 707 //         cout.form("y: %g %g %g %g\n",lx,-v.Y()+s.Y()+n1.Y()*(v.dot(n1)-s.dot(n1))+n2.Y()*(v.dot(n2)-s.dot(n2)),p.Y()-n1.Y()*p.dot(n1)-n2.Y()*p.dot(n2));
 708 //         cout.form("z: %g %g %g %g\n",lx,-v.Z()+s.Z()+n1.Z()*(v.dot(n1)-s.dot(n1))+n2.Z()*(v.dot(n2)-s.dot(n2)),p.Z()-n1.Z()*p.dot(n1)-n2.Z()*p.dot(n2));
 709 //         cout.form("lx,ly,lz =   %g,%g,%g\n",lx,ly,lz);
 710
 711   x = p_n1*l + v_n1 - s_n1;
 712   y = p_n2*l + v_n2 - s_n2;
 713 }
 714
 715 //______________________________________________________________________________
 716
 717 void AliPHOSCradle::Print(Option_t *opt)
 718 {
 719 // Print AliPHOSCradle information.
 720 //
 721 // options:  'd' - print energy deposition for EVERY cell
 722 //           'p' - print particles list that hit the cradle
 723 //           'r' - print list of reconstructed particles
 724
 725   AliPHOSCradle *cr = (AliPHOSCradle *)this;     // Removing 'const'...
 726
 727   printf("AliPHOSCradle:  Nz=%d  Nphi=%d, fPhi=%f, E=%g\n",fNz,fNphi,fPhi,
 728        cr->fCellEnergy.GetSumOfWeights());
 729
 730   if( NULL!=strchr(opt,'d') )
 731   {
 732     printf("\n\nCells Energy (in MeV):\n\n   |");
 733     for( int x=0; x<fNz; x++ )
 734       printf(" %4d|",x+1);
 735     printf("\n");
 736
 737     for( int y=fNphi-1; y>=0; y-- )
 738     {
 739       printf("%3d|",y+1);
 740       for( int x=0; x<fNz; x++ )
 741         printf("%6d",(int)(cr->fCellEnergy.GetBinContent(cr->fCellEnergy.GetBin(x,y))*1000));
 742       printf("\n");
 743     }
 744     printf("\n");
 745   }
 746
 747   if( NULL!=strchr(opt,'p') )
 748   {
 749     printf("This cradle was hit by %d particles\n",
 750          ((AliPHOSCradle*)this)->GetParticles().GetEntries());
 751     TObjArray &p=((AliPHOSCradle*)this)->GetParticles();
 752     for( int i=0; i<p.GetEntries(); i++ )
 753       ((AliPHOSgamma*)(p[i]))->Print();
 754   }
 755
 756   if( NULL!=strchr(opt,'p') )
 757   {
 758     printf("Amount of reconstructed gammas is %d\n",
 759          ((AliPHOSCradle*)this)->GetGammasReconstructed().GetEntries());
 760
 761     TObjArray &p=((AliPHOSCradle*)this)->GetGammasReconstructed();
 762     for( int i=0; i<p.GetEntries(); i++ )
 763       ((AliPHOSgamma*)(p[i]))->Print();
 764   }
 765 }
 766
 767 //______________________________________________________________________________
 768
 769 void AliPHOSCradle::Distortion(const TH2F *Noise, const TH2F *Stochastic, const TH2F *Calibration)
 770 {
 771 // This function changes histogram of cell energies fCellEnergy on the base of input
 772 // histograms Noise, Stochastic, Calibration. The histograms must have
 773 // size Nz x Nphi.
 774
 775   //////////////////////////////////
 776   // Testing the histograms size. //
 777   //////////////////////////////////
 778
 779   if( fNz!=fCellEnergy.GetNbinsX() || fNphi!=fCellEnergy.GetNbinsY() )
 780   {
 781     printf      ("Bad size of CellEnergy!   Must be:   Nz x Nphi = %d x %d\n"
 782                  "but size of CellEnergy is:  %d x %d\n",
 783                  fNz,fNphi,fCellEnergy.GetNbinsX(),fCellEnergy.GetNbinsY());
 784     exit(1);
 785   }
 786
 787   if( fNz!=fChargedTracksInPIN.GetNbinsX() || fNphi!=fChargedTracksInPIN.GetNbinsY() )
 788   {
 789     printf      ("Bad size of ChargedTracksInPIN!   Must be:   Nz x Nphi = %d x %d\n"
 790                  "but size of ChargedTracksInPIN is:  %d x %d\n",
 791                  fNz,fNphi,fChargedTracksInPIN.GetNbinsX(),fChargedTracksInPIN.GetNbinsY());
 792     exit(1);
 793   }
 794
 795   if( NULL!=Noise && (fNz!=Noise->GetNbinsX() || fNphi!=Noise->GetNbinsX()) )
 796   {
 797     printf      ("Bad size of Noise!   Must be:   Nz x Nphi = %d x %d\n"
 798                  "but size of Noise is:  %d x %d\n",
 799                  fNz,fNphi,fChargedTracksInPIN.GetNbinsX(),fChargedTracksInPIN.GetNbinsY());
 800     exit(1);
 801   }
 802
 803   if( NULL!=Stochastic && (fNz!=Stochastic->GetNbinsX() || fNphi!=Stochastic->GetNbinsX()) )
 804   {
 805     printf      ("Bad size of Stochastic!   Must be:   Nz x Nphi = %d x %d\n"
 806                  "but size of Stochastic is:  %d x %d\n",
 807                  fNz,fNphi,fChargedTracksInPIN.GetNbinsX(),fChargedTracksInPIN.GetNbinsY());
 808     exit(1);
 809   }
 810
 811   if( NULL!=Calibration && (fNz!=Calibration->GetNbinsX() || fNphi!=Calibration->GetNbinsX()) )
 812   {
 813     printf      ("Bad size of Calibration!   Must be:   Nz x Nphi = %d x %d\n"
 814                  "but size of Calibration is:  %d x %d\n",
 815                  fNz,fNphi,fChargedTracksInPIN.GetNbinsX(),fChargedTracksInPIN.GetNbinsY());
 816     exit(1);
 817   }
 818
 819   ////////////////////
 820   // Do distortion! //
 821   ////////////////////
 822
 823   for( int y=0; y<fNphi; y++ )
 824     for( int x=0; x<fNz; x++ )
 825     {
 826       const int n = fCellEnergy.GetBin(x,y);   // Bin number
 827       static TRandom r;
 828
 829       Float_t   E_old=fCellEnergy.GetBinContent(n),   E_new=E_old;
 830
 831       if( NULL!=Stochastic )
 832         E_new   = r.Gaus(E_old,sqrt(E_old)*GetDistortedValue(Stochastic,n));
 833
 834       if( NULL!=Calibration )
 835         E_new  *=  GetDistortedValue(Calibration,n);
 836
 837       if( NULL!=Noise )
 838         E_new  +=  GetDistortedValue(Noise,n);
 839
 840       fCellEnergy.SetBinContent(n,E_new);
 841     }
 842 }
 843
 844 ////////////////////////////////////////////////////////////////////////////////
 845
 846 TH2F* AliPHOSCradle::CreateHistForDistortion(const char *name, const char *title,
 847                                              Int_t Nx, Int_t Ny,
 848                                              Float_t MU_mu,    Float_t MU_sigma,
 849                                              Float_t SIGMA_mu, Float_t SIGMA_sigma)
 850 {
 851 // Create (new TH2F(...)) histogram with information (for every bin) that will
 852 // be used for VALUE creation.
 853 // Two values will be created for each bin:
 854 // MU    = TRandom::Gaus(MU_mu,MU_sigma)
 855 // and
 856 // SIGMA = TRandom::Gaus(SIGMA_mu,SIGMA_sigma)
 857 // The VALUE in a particluar bin will be equal
 858 // VALUE = TRandom::Gaus(MU,SIGMA)
 859 //
 860 // Do not forget to delete the histogram at the end of the work.
 861
 862   TH2F *h = new TH2F( name,title, Nx,1,Nx, Ny,1,Ny );
 863   if( h==NULL )
 864   {
 865     Error("CreateHistForDistortion","Can not create the histogram");
 866     exit(1);
 867   }
 868   h->SetDirectory(0);
 869
 870   for( int y=0; y<Ny; y++ )
 871     for( int x=0; x<Nx; x++ )
 872     {
 873       const int n = h->GetBin(x,y);
 874       h->SetBinContent(n,r.Gaus(   MU_mu,   MU_sigma));
 875       h->SetBinError  (n,r.Gaus(SIGMA_mu,SIGMA_sigma));
 876     }
 877
 878   return h;
 879 }
 880
 881 ////////////////////////////////////////////////////////////////////////////////
 882
 883 Float_t AliPHOSCradle::GetDistortedValue(const TH2F *h, UInt_t n)
 884 {
 885   return r.Gaus(((TH2F*)h)->GetBinContent(n),n);
 886 }
 887
 888 ////////////////////////////////////////////////////////////////////////////////
 889 //______________________________________________________________________________
 890
 891 #ifdef WIN32
 892   #define common_for_event_storing COMMON_FOR_EVENT_STORING
 893 #else
 894   #define common_for_event_storing common_for_event_storing_
 895 #endif
 896
 897 /* extern "C" */ struct
 898 {
 899   enum { crystals_matrix_amount_max=4, crystals_in_matrix_amount_max=40000 };
 900
 901   // Event-independent information
 902   UShort_t      crystals_matrix_amount_PHOS,
 903                 crystal_matrix_type,
 904                 amount_of_crystals_on_Z,
 905                 amount_of_crystals_on_PHI;
 906   Float_t       radius,
 907                 crystal_size,
 908                 crystal_length,
 909                 matrix_coordinate_Z             [crystals_matrix_amount_max],
 910                 matrix_coordinate_PHI           [crystals_matrix_amount_max];
 911   UInt_t        event_number;
 912   UShort_t      crystals_amount_with_amplitudes [crystals_matrix_amount_max],
 913                 crystals_amplitudes_Iad         [crystals_matrix_amount_max]
 914                                                 [crystals_in_matrix_amount_max][2];
 915 } common_for_event_storing;
 916
 917 //       integer*4 crystals_amount_max,crystals_in_matrix_amount_max,
 918 //      +          crystals_matrix_amount_max
 919 //       parameter (crystals_matrix_amount_max=4)
 920 //       parameter (crystals_in_matrix_amount_max=40000)
 921 //       parameter (crystals_amount_max =crystals_matrix_amount_max*
 922 //      +                                crystals_in_matrix_amount_max)
 923 //
 924 // * All units are in GeV, cm, radian
 925 //       real       crystal_amplitudes_unit, radius_unit,
 926 //      +           crystal_size_unit, crystal_length_unit,
 927 //      +           matrix_coordinate_Z_unit, matrix_coordinate_PHI_unit
 928 //       integer    crystal_amplitudes_in_units_min
 929 //       parameter (crystal_amplitudes_in_units_min        = 1)
 930 //       parameter (crystal_amplitudes_unit                = 0.001 ) ! 1.0  MeV
 931 //       parameter (radius_unit                            = 0.1   ) ! 0.1  cm
 932 //       parameter (crystal_size_unit                      = 0.01  ) ! 0.01 cm
 933 //       parameter (crystal_length_unit                    = 0.01  ) ! 0.01 cm
 934 //       parameter (matrix_coordinate_Z_unit               = 0.1   ) ! 0.1  cm
 935 //       parameter (matrix_coordinate_PHI_unit             = 1e-4  ) ! 1e-4 radian
 936 //
 937 //       integer*2 crystals_matrix_amount_PHOS, crystal_matrix_type,
 938 //      +          amount_of_crystals_on_Z, amount_of_crystals_on_PHI,
 939 //      +          crystals_amount_with_amplitudes, crystals_amplitudes_Iad
 940 //       integer*4 event_number
 941 //
 942 //       real      radius, crystal_size, crystal_length,
 943 //      +          matrix_coordinate_Z, matrix_coordinate_PHI
 944 //
 945 //       real      crystals_amplitudes, crystals_energy_total
 946 //       integer   event_file_unit_number
 947 //
 948 //       common /common_for_event_storing/
 949 //      + ! Event-independent information
 950 //      +        crystals_matrix_amount_PHOS,
 951 //      +        crystal_matrix_type,
 952 //      +        amount_of_crystals_on_Z,
 953 //      +        amount_of_crystals_on_PHI,
 954 //      +        radius,
 955 //      +        crystal_size,
 956 //      +        crystal_length,
 957 //      +        matrix_coordinate_Z     (crystals_matrix_amount_max),
 958 //      +        matrix_coordinate_PHI   (crystals_matrix_amount_max),
 959 //      +
 960 //      + ! Event-dependent information
 961 //      +        event_number,
 962 //      +        crystals_amount_with_amplitudes
 963 //      +                                (crystals_matrix_amount_max),
 964 //      +        crystals_amplitudes_Iad (2,crystals_in_matrix_amount_max,
 965 //      +                                 crystals_matrix_amount_max),
 966 //      +
 967 //      + ! These information don't store in data file
 968 //      +        crystals_amplitudes     (crystals_amount_max),
 969 //      +        crystals_energy_total,
 970 //      +        event_file_unit_number
 971
 972
 973 //      parameter (NGp=1000,nsps=10,nvertmax=1000)
 974 //         COMMON /GAMMA/KG,MW(ngp),ID(ngp),JD(ngp),E(ngp),E4(ngp),
 975 //      ,  XW(ngp),YW(ngp),ES(nsps,ngp),ET(nsps,ngp),ISsd(ngp),
 976 //      ,  IGDEV(ngp),ZGDEV(ngp),sigexy(3,ngp),Emimx(2,nsps,ngp),
 977 //      ,  kgfix,igfix(ngp),cgfix(3,ngp),sgfix(3,ngp),hiw(ngp),
 978 //      ,  wsw(nsps,ngp),h1w(ngp),h0w(ngp),raxay(5,ngp),
 979 //      ,  sigmaes0(nsps,ngp),dispeces(nsps,ngp),
 980 //      ,  igamvert(ngp)
 981
 982
 983 #ifdef WIN32
 984 #define rcgamma RCGAMMA
 985 #else
 986 #define rcgamma rcgamma_
 987 #endif
 988
 989 /* extern "C" */ struct
 990 {
 991   enum {NGP=1000, nsps=10, nvertmax=1000};
 992   int   recons_gammas_amount, mw[NGP],ID[NGP],JD[NGP];
 993   float E[NGP], E4[NGP], XW[NGP], YW[NGP], ES[NGP][nsps],ET[NGP][nsps],ISsd[NGP],
 994         igdev[NGP],Zgdev[NGP];
 995 //      sigexy(3,ngp),Emimx(2,nsps,ngp),
 996 //   ,  kgfix,igfix(ngp),cgfix(3,ngp),sgfix(3,ngp),hiw(ngp),
 997 //   ,  wsw(nsps,ngp),h1w(ngp),h0w(ngp),raxay(5,ngp),
 998 //   ,  sigmaes0(nsps,ngp),dispeces(nsps,ngp),
 999 //   ,  igamvert(ngp)
1000 } rcgamma;
1001
1002 /*
1003 #ifdef WIN32
1004 #define reconsfirst RECONSFIRST
1005 #define type_of_call _stdcall
1006 #else
1007 #define reconsfirst reconsfirst_
1008 #define type_of_call
1009 #endif
1010
1011 extern "C" void type_of_call reconsfirst(const float &,const float &);
1012 */
1013
1014 void AliPHOSCradle::Reconstruction(Float_t signal_step, UInt_t min_signal_reject)
1015 {
1016 // Call of PHOS reconstruction program.
1017 // signal_step=0.001  GeV (1MeV)
1018 // min_signal_reject = 15 or 30 MeV
1019
1020
1021   common_for_event_storing.event_number                       = 0;  // We do not know event number?
1022   common_for_event_storing.crystals_matrix_amount_PHOS        = 1;
1023   common_for_event_storing.crystal_matrix_type                = 1; // 1 - rectangular
1024   common_for_event_storing.amount_of_crystals_on_Z            = fNz;
1025   common_for_event_storing.amount_of_crystals_on_PHI          = fNphi;
1026
1027   common_for_event_storing.radius                             = fRadius;
1028   common_for_event_storing.crystal_size                       = GetCellSideSize();
1029   common_for_event_storing.crystal_length                     = fCrystalLength;
1030
1031   common_for_event_storing.matrix_coordinate_Z            [0] = 0;
1032   common_for_event_storing.matrix_coordinate_PHI          [0] = fPhi;
1033
1034   #define  k    common_for_event_storing.crystals_amount_with_amplitudes[0]
1035   k=0;
1036
1037   for( int y=0; y<fNphi; y++ )
1038     for( int x=0; x<fNz; x++ )
1039     {
1040       UInt_t    n       = fCellEnergy.GetBin(x,y);
1041       UInt_t    signal  = (int) (fCellEnergy.GetBinContent(n)/signal_step);
1042       if( signal>=min_signal_reject )
1043       {
1044         common_for_event_storing.crystals_amplitudes_Iad[0][k][0] = signal;
1045         common_for_event_storing.crystals_amplitudes_Iad[0][k][1] = x + y*fNz;
1046         k++;
1047       }
1048     }
1049   #undef  k
1050
1051   GetGammasReconstructed().Delete();
1052   GetGammasReconstructed().Compress();
1053
1054   const float   stochastic_term   = 0.03,        // per cents over sqrt(E);  E in GeV
1055                 electronic_noise  = 0.01;        // GeV
1056 //  reconsfirst(stochastic_term,electronic_noise); // Call of reconstruction program.
1057
1058   for( int i=0; i<rcgamma.recons_gammas_amount; i++ )
1059   {
1060 //     new (GetGammasReconstructed().UncheckedAt(i) ) AliPHOSgamma;
1061 //     AliPHOSgamma &g = *(AliPHOSgamma*)(GetGammasReconstructed().UncheckedAt(i));
1062
1063     AliPHOSgamma *gggg = new AliPHOSgamma;
1064     if( NULL==gggg )
1065     {
1066       Error("Reconstruction","Can not create AliPHOSgamma");
1067       exit(1);
1068     }
1069
1070     GetGammasReconstructed().Add(gggg);
1071     AliPHOSgamma &g=*gggg;
1072
1073     Float_t thetta, alpha, betta, R=fRadius+rcgamma.Zgdev[i]/10;
1074
1075     g.fX      = rcgamma.YW[i]/10;
1076     g.fY      = rcgamma.XW[i]/10;
1077     g.fE      = rcgamma.E [i];
1078
1079     thetta      = atan(g.fX/R);
1080
1081     alpha = atan(g.fY/R);
1082     betta = fPhi/180*TMath::Pi() + alpha;
1083
1084     g.fPx = g.fE * cos(thetta) * cos(betta);
1085     g.fPy = g.fE * cos(thetta) * sin(betta);
1086     g.fPz = g.fE * sin(thetta);
1087   }
1088 }
1089
1090 //______________________________________________________________________________
1091 //______________________________________________________________________________
1092 //______________________________________________________________________________
1093 //______________________________________________________________________________
1094 //______________________________________________________________________________
1095
1096 ClassImp(AliPHOSgamma)
1097
1098 //______________________________________________________________________________
1099
1100 void AliPHOSgamma::Print(Option_t *)
1101 {
1102   float mass = fE*fE - fPx*fPx - fPy*fPy - fPz*fPz;
1103
1104   if( mass>=0 )
1105     mass =  sqrt( mass);
1106   else
1107     mass = -sqrt(-mass);
1108
1109   printf("XY=(%+7.2f,%+7.2f)  (%+7.2f,%+7.2f,%+7.2f;%7.2f)  mass=%8.4f  Ipart=%2d\n",
1110           fX,fY,fPx,fPy,fPz,fE,mass,fIpart);
1111 }
1112
1113 //______________________________________________________________________________
1114
1115 AliPHOSgamma &AliPHOSgamma::operator=(const AliPHOSgamma &g)
1116 {
1117   fX           = g.fX;
1118   fY           = g.fY;
1119   fE           = g.fE;
1120   fPx          = g.fPx;
1121   fPy          = g.fPy;
1122   fPz          = g.fPz;
1123   fIpart       = g.fIpart;
1124
1125   return *this;
1126 }
1127
1128 //______________________________________________________________________________
1129 //______________________________________________________________________________
1130 //______________________________________________________________________________
1131 //______________________________________________________________________________
1132 //______________________________________________________________________________
1133
1134 ClassImp(AliPHOShit)
1135
1136 //______________________________________________________________________________
1137
1138 AliPHOShit::AliPHOShit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
1139 AliHit(shunt, track)
1140 {
1141    Int_t i;
1142    for (i=0;i<5;i++) fVolume[i] = vol[i];
1143    fX       = hits[0];
1144    fY       = hits[1];
1145    fZ       = hits[2];
1146    fELOS    = hits[3];
1147 }
1148
1149 //______________________________________________________________________________