PWG3/vertexingHF/AliAnalysisTaskSED0Mass.cxx

   1 /**************************************************************************
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   3  *                                                                        *
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  15
  16 /////////////////////////////////////////////////////////////
  17 //
  18 // AliAnalysisTaskSE for D0 candidates invariant mass histogram
  19 // and comparison with the MC truth and cut variables distributions.
  20 //
  21 // Authors: A.Dainese, andrea.dainese@lnl.infn.it
  22 // Chiara Bianchin, chiara.bianchin@pd.infn.it (invariant mass)
  23 // Carmelo Di Giglio, carmelo.digiglio@ba.infn.it (like sign)
  24 /////////////////////////////////////////////////////////////
  25
  26 #include <Riostream.h>
  27 #include <TClonesArray.h>
  28 #include <TCanvas.h>
  29 #include <TNtuple.h>
  30 #include <TList.h>
  31 #include <TH1F.h>
  32 #include <TH2F.h>
  33 #include <TDatabasePDG.h>
  34
  35 #include <AliAnalysisDataSlot.h>
  36 #include <AliAnalysisDataContainer.h>
  37 #include "AliAnalysisManager.h"
  38 #include "AliESDtrack.h"
  39 #include "AliVertexerTracks.h"
  40 #include "AliAODHandler.h"
  41 #include "AliAODEvent.h"
  42 #include "AliAODVertex.h"
  43 #include "AliAODTrack.h"
  44 #include "AliAODMCHeader.h"
  45 #include "AliAODMCParticle.h"
  46 #include "AliAODRecoDecayHF2Prong.h"
  47 #include "AliAODRecoCascadeHF.h"
  48 #include "AliAnalysisVertexingHF.h"
  49 #include "AliAnalysisTaskSE.h"
  50 #include "AliAnalysisTaskSED0Mass.h"
  51
  52
  53 ClassImp(AliAnalysisTaskSED0Mass)
  54
  55
  56 //________________________________________________________________________
  57 AliAnalysisTaskSED0Mass::AliAnalysisTaskSED0Mass():
  58 AliAnalysisTaskSE(),
  59 fOutputMass(0),
  60 fDistr(0),
  61 fNentries(0),
  62 fChecks(0),
  63 fCuts(0),
  64 fArray(0),
  65 fReadMC(0),
  66 fCutOnDistr(0),
  67 fNPtBins(1),
  68 fTotPosPairs(0),
  69 fTotNegPairs(0),
  70 fLsNormalization(1.)
  71
  72
  73 {
  74   // Default constructor
  75 }
  76
  77 //________________________________________________________________________
  78 AliAnalysisTaskSED0Mass::AliAnalysisTaskSED0Mass(const char *name,AliRDHFCutsD0toKpi* cuts):
  79 AliAnalysisTaskSE(name),
  80 fOutputMass(0),
  81 fDistr(0),
  82 fNentries(0),
  83 fChecks(0),
  84 fCuts(0),
  85 fArray(0),
  86 fReadMC(0),
  87 fCutOnDistr(0),
  88 fNPtBins(1),
  89 fTotPosPairs(0),
  90 fTotNegPairs(0),
  91 fLsNormalization(1.)
  92
  93
  94 {
  95   // Default constructor
  96
  97   fNPtBins=cuts->GetNPtBins();
  98   fTotPosPairs=new Int_t[fNPtBins];
  99   fTotNegPairs=new Int_t[fNPtBins];
 100   for(Int_t i=0;i<fNPtBins;i++) {fTotPosPairs[i]=0; fTotNegPairs[i]=0;}
 101
 102   fCuts=cuts;
 103
 104   // Output slot #1 writes into a TList container (mass with cuts)
 105   DefineOutput(1,TList::Class());  //My private output
 106   // Output slot #2 writes into a TList container (distributions)
 107   DefineOutput(2,TList::Class());  //My private output
 108   // Output slot #3 writes into a TH1F container (number of events)
 109   DefineOutput(3,TH1F::Class());  //My private output
 110   // Output slot #4 writes into a TList container (quality check)
 111   DefineOutput(4,TList::Class());  //My private output
 112   // Output slot #5 writes into a TList container (cuts)
 113   DefineOutput(5,AliRDHFCutsD0toKpi::Class());  //My private output
 114
 115 }
 116
 117 //________________________________________________________________________
 118 AliAnalysisTaskSED0Mass::~AliAnalysisTaskSED0Mass()
 119 {
 120    if (fOutputMass) {
 121     delete fOutputMass;
 122     fOutputMass = 0;
 123   }
 124   if (fDistr) {
 125     delete fDistr;
 126     fDistr = 0;
 127   }
 128   if (fChecks) {
 129     delete fChecks;
 130     fChecks = 0;
 131   }
 132   if (fCuts) {
 133     delete fCuts;
 134     fCuts = 0;
 135   }
 136   if (fNentries){
 137     delete fNentries;
 138     fNentries = 0;
 139   }
 140
 141
 142 }
 143
 144 //________________________________________________________________________
 145 void AliAnalysisTaskSED0Mass::Init()
 146 {
 147   // Initialization
 148
 149   if(fDebug > 1) printf("AnalysisTaskSED0Mass::Init() \n");
 150
 151
 152   AliRDHFCutsD0toKpi* copyfCuts=new AliRDHFCutsD0toKpi(*fCuts);
 153   const char* nameoutput=GetOutputSlot(5)->GetContainer()->GetName();
 154   copyfCuts->SetName(nameoutput);
 155   // Post the data
 156   PostData(5,copyfCuts);
 157
 158
 159   return;
 160 }
 161
 162 //________________________________________________________________________
 163 void AliAnalysisTaskSED0Mass::UserCreateOutputObjects()
 164 {
 165
 166   // Create the output container
 167   //
 168   if(fDebug > 1) printf("AnalysisTaskSED0Mass::UserCreateOutputObjects() \n");
 169
 170   // Several histograms are more conveniently managed in a TList
 171   fOutputMass = new TList();
 172   fOutputMass->SetOwner();
 173   fOutputMass->SetName("listMass");
 174
 175   fDistr = new TList();
 176   fDistr->SetOwner();
 177   fDistr->SetName("distributionslist");
 178
 179   fChecks = new TList();
 180   fChecks->SetOwner();
 181   fChecks->SetName("checkHistograms");
 182
 183   TString nameMass=" ",nameSgn27=" ",nameSgn=" ", nameBkg=" ", nameRfl=" ",nameMassNocutsS =" ",nameMassNocutsB =" ", namedistr=" ";
 184
 185   for(Int_t i=0;i<fCuts->GetNPtBins();i++){
 186
 187     nameMass="histMass_";
 188     nameMass+=i;
 189     nameSgn27="histSgn27_";
 190     nameSgn27+=i;
 191     nameSgn="histSgn_";
 192     nameSgn+=i;
 193     nameBkg="histBkg_";
 194     nameBkg+=i;
 195     nameRfl="histRfl_";
 196     nameRfl+=i;
 197     nameMassNocutsS="hMassS_";
 198     nameMassNocutsS+=i;
 199     nameMassNocutsB="hMassB_";
 200     nameMassNocutsB+=i;
 201
 202     //histograms of cut variable distributions
 203
 204     //  pT
 205     namedistr="hptpiS_";
 206     namedistr+=i;
 207     TH1F *hptpiS = new TH1F(namedistr.Data(), "P_{T} distribution (pions);p_{T} [GeV/c]",200,0.,8.);
 208
 209     namedistr="hptKS_";
 210     namedistr+=i;
 211     TH1F *hptKS = new TH1F(namedistr.Data(), "P_{T} distribution (kaons);p_{T} [GeV/c]",200,0.,8.);
 212
 213     namedistr="hptB_";
 214     namedistr+=i;
 215     TH1F *hptB = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 216
 217     //  pT no mass cut
 218     namedistr="hptpiSnoMcut_";
 219     namedistr+=i;
 220     TH1F *hptpiSnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution (pions);p_{T} [GeV/c]",200,0.,8.);
 221
 222     namedistr="hptKSnoMcut_";
 223     namedistr+=i;
 224     TH1F *hptKSnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution (kaons);p_{T} [GeV/c]",200,0.,8.);
 225
 226     namedistr="hptB1prongnoMcut_";
 227     namedistr+=i;
 228     TH1F *hptB1pnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 229
 230     namedistr="hptB2prongsnoMcut_";
 231     namedistr+=i;
 232     TH1F *hptB2pnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 233
 234
 235     //  dca
 236     namedistr="hdcaS_";
 237     namedistr+=i;
 238     TH1F *hdcaS = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
 239     namedistr="hdcaB_";
 240     namedistr+=i;
 241     TH1F *hdcaB = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
 242
 243     //  costhetastar
 244     namedistr="hcosthetastarS_";
 245     namedistr+=i;
 246     TH1F *hcosthetastarS = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
 247     namedistr="hcosthetastarB_";
 248     namedistr+=i;
 249     TH1F *hcosthetastarB = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
 250
 251     // impact parameter
 252     namedistr="hd0piS_";
 253     namedistr+=i;
 254     TH1F *hd0piS = new TH1F(namedistr.Data(), "Impact parameter distribution (pions);d0(#pi) [cm]",200,-0.1,0.1);
 255
 256     namedistr="hd0KS_";
 257     namedistr+=i;
 258     TH1F *hd0KS = new TH1F(namedistr.Data(), "Impact parameter distribution (kaons);d0(K) [cm]",200,-0.1,0.1);
 259
 260     namedistr="hd0B_";
 261     namedistr+=i;
 262     TH1F *hd0B = new TH1F(namedistr.Data(), "Impact parameter distribution (both);d0 [cm]",200,-0.1,0.1);
 263
 264     namedistr="hd0p0B_";
 265     namedistr+=i;
 266     TH1F *hd0p0B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong +);d0 [cm]",200,-0.1,0.1);
 267
 268     namedistr="hd0p1B_";
 269     namedistr+=i;
 270     TH1F *hd0p1B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong -);d0 [cm]",200,-0.1,0.1);
 271
 272     namedistr="hd0vpiS_";
 273     namedistr+=i;
 274     TH1F *hd0vpiS = new TH1F(namedistr.Data(), "Impact parameter distribution (pions)(vtx w/o these tracks);d0(#pi) [cm]",200,-0.1,0.1);
 275
 276     namedistr="hd0vKS_";
 277     namedistr+=i;
 278     TH1F *hd0vKS = new TH1F(namedistr.Data(), "Impact parameter distribution (kaons) (vtx w/o these tracks);d0(K) [cm]",200,-0.1,0.1);
 279     namedistr="hd0vB_";
 280     namedistr+=i;
 281     TH1F *hd0vB = new TH1F(namedistr.Data(), "Impact parameter distribution (vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 282
 283     namedistr="hd0vp0B_";
 284     namedistr+=i;
 285     TH1F *hd0vp0B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong + ** vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 286
 287     namedistr="hd0vp1B_";
 288     namedistr+=i;
 289     TH1F *hd0vp1B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong - ** vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 290
 291     namedistr="hd0d0S_";
 292     namedistr+=i;
 293     TH1F *hd0d0S = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 294     namedistr="hd0d0B_";
 295     namedistr+=i;
 296     TH1F *hd0d0B = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 297
 298      namedistr="hd0d0vS_";
 299     namedistr+=i;
 300     TH1F *hd0d0vS = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution (vtx w/o these tracks);d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 301     namedistr="hd0d0vB_";
 302     namedistr+=i;
 303     TH1F *hd0d0vB = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution (vtx w/o these tracks);d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 304
 305     //decay lenght
 306     namedistr="hdeclS_";
 307     namedistr+=i;
 308     TH1F *hdeclengthS = new TH1F(namedistr.Data(), "Decay Length distribution;Decay Length [cm]",200,0,0.6);
 309
 310     namedistr="hdeclB_";
 311     namedistr+=i;
 312     TH1F *hdeclengthB = new TH1F(namedistr.Data(), "Decay Length distribution;Decay Length [cm]",200,0,0.6);
 313
 314     namedistr="hnormdeclS_";
 315     namedistr+=i;
 316     TH1F *hnormdeclengthS = new TH1F(namedistr.Data(), "Normalized Decay Length distribution;Decay Length/Err ",200,0,10.);
 317
 318     namedistr="hnormdeclB_";
 319     namedistr+=i;
 320     TH1F *hnormdeclengthB = new TH1F(namedistr.Data(), "Normalized Decay Length distribution;Decay Length/Err ",200,0,10.);
 321
 322    //  costhetapoint
 323     namedistr="hcosthetapointS_";
 324     namedistr+=i;
 325     TH1F *hcosthetapointS = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 326     namedistr="hcosthetapointB_";
 327     namedistr+=i;
 328     TH1F *hcosthetapointB = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 329
 330    //  costhetapoint vs d0 or d0d0
 331     namedistr="hcosthpointd0S_";
 332     namedistr+=i;
 333     TH2F *hcosthpointd0S= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0};cos#theta_{Point};d_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
 334
 335     namedistr="hcosthpointd0B_";
 336     namedistr+=i;
 337     TH2F *hcosthpointd0B= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0};cos#theta_{Point};d_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
 338
 339     namedistr="hcosthpointd0d0S_";
 340     namedistr+=i;
 341     TH2F *hcosthpointd0d0S= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0}#timesd_{0};cos#theta_{Point};d_{0}#timesd_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
 342     namedistr="hcosthpointd0d0B_";
 343     namedistr+=i;
 344     TH2F *hcosthpointd0d0B= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0}#timesd_{0};cos#theta_{Point};d_{0}#timesd_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
 345
 346     fDistr->Add(hptpiS);
 347     fDistr->Add(hptKS);
 348     fDistr->Add(hptB);
 349
 350     fDistr->Add(hptpiSnoMcut);
 351     fDistr->Add(hptKSnoMcut);
 352     fDistr->Add(hptB1pnoMcut);
 353     fDistr->Add(hptB2pnoMcut);
 354
 355     fDistr->Add(hdcaS);
 356     fDistr->Add(hdcaB);
 357
 358     fDistr->Add(hd0piS);
 359     fDistr->Add(hd0KS);
 360     fDistr->Add(hd0B);
 361     fDistr->Add(hd0p0B);
 362     fDistr->Add(hd0p1B);
 363
 364     fDistr->Add(hd0vpiS);
 365     fDistr->Add(hd0vKS);
 366     fDistr->Add(hd0vB);
 367     fDistr->Add(hd0vp0B);
 368     fDistr->Add(hd0vp1B);
 369
 370     fDistr->Add(hd0d0S);
 371     fDistr->Add(hd0d0B);
 372
 373     fDistr->Add(hd0d0vS);
 374     fDistr->Add(hd0d0vB);
 375
 376     fDistr->Add(hcosthetastarS);
 377     fDistr->Add(hcosthetastarB);
 378
 379     fDistr->Add(hcosthetapointS);
 380     fDistr->Add(hcosthetapointB);
 381
 382     fDistr->Add(hdeclengthS);
 383     fDistr->Add(hdeclengthB);
 384
 385     fDistr->Add(hnormdeclengthS);
 386     fDistr->Add(hnormdeclengthB);
 387
 388     fDistr->Add(hcosthpointd0S);
 389     fDistr->Add(hcosthpointd0B);
 390
 391     fDistr->Add(hcosthpointd0d0S);
 392     fDistr->Add(hcosthpointd0d0B);
 393
 394
 395     //histograms of invariant mass distributions
 396
 397     TH1F* tmpMt = new TH1F(nameMass.Data(),"D^{0} invariant mass; M [GeV]; Entries",200,1.765,1.965);
 398     TH1F *tmpMl=(TH1F*)tmpMt->Clone();
 399     tmpMt->Sumw2();
 400     tmpMl->Sumw2();
 401
 402     //to compare with AliAnalysisTaskCharmFraction
 403     TH1F* tmpS27t = new TH1F(nameSgn27.Data(),"D^{0} invariant mass in M(D^{0}) +/- 27 MeV - MC; M [GeV]; Entries",200,1.765,1.965);
 404     TH1F *tmpS27l=(TH1F*)tmpS27t->Clone();
 405     tmpS27t->Sumw2();
 406     tmpS27l->Sumw2();
 407
 408     //distribution w/o cuts
 409     //   TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,0.7,3.);
 410     TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,1.56484,2.16484); //range (MD0-300MeV, mD0 + 300MeV)
 411     TH1F *tmpMB=(TH1F*)tmpMS->Clone();
 412     tmpMB->SetName(nameMassNocutsB.Data());
 413     tmpMS->Sumw2();
 414     tmpMB->Sumw2();
 415
 416     //MC signal and background
 417     TH1F* tmpSt = new TH1F(nameSgn.Data(), "D^{0} invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 418     TH1F *tmpSl=(TH1F*)tmpSt->Clone();
 419     tmpSt->Sumw2();
 420     tmpSl->Sumw2();
 421
 422     TH1F* tmpBt = new TH1F(nameBkg.Data(), "Background invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 423     TH1F *tmpBl=(TH1F*)tmpBt->Clone();
 424     tmpBt->Sumw2();
 425     tmpBl->Sumw2();
 426
 427     //Reflection: histo filled with D0Mass which pass the cut (also) as D0bar and with D0bar which pass (also) the cut as D0
 428     TH1F* tmpRt = new TH1F(nameRfl.Data(), "Reflected signal invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 429     TH1F *tmpRl=(TH1F*)tmpRt->Clone();
 430     tmpRt->Sumw2();
 431     tmpRl->Sumw2();
 432   //  printf("Created histograms %s\t%s\t%s\t%s\n",tmpM->GetName(),tmpS->GetName(),tmpB->GetName(),tmpR->GetName());
 433
 434     fOutputMass->Add(tmpMt);
 435     fOutputMass->Add(tmpSt);
 436     fOutputMass->Add(tmpS27t);
 437     fOutputMass->Add(tmpBt);
 438     fOutputMass->Add(tmpRt);
 439
 440     fDistr->Add(tmpMS);
 441     fDistr->Add(tmpMB);
 442
 443
 444   }
 445
 446   //histograms for vertex checking and TOF checking
 447   TString checkname="hptGoodTr";
 448
 449   TH1F* hptGoodTr=new TH1F(checkname.Data(),"Pt distribution of 'good' tracks;p_{t}[GeV];Number",200,0.,8.);
 450   hptGoodTr->SetTitleOffset(1.3,"Y");
 451   checkname="hdistrGoodTr";
 452
 453   TH1F* hdistrGoodTr=new TH1F(checkname.Data(),"Distribution of number of good tracks per event;no.good-tracks/ev;Entries",31,0,31);
 454   hdistrGoodTr->SetTitleOffset(1.3,"Y");
 455
 456   checkname="hTOFsig";
 457   TH1F* hTOFsig=new TH1F(checkname.Data(),"Distribution of TOF signal;TOF time [ps];Entries", 100, -2.e3,40.e3);
 458
 459   checkname="hTOFtimeKaonHyptime";
 460   TH2F* hTOFtimeKaonHyptime=new TH2F(checkname.Data(),"TOFtime - timeHypothesisForKaon;p_{t}[GeV/c];TOFtime - timeHypothesisForKaon [ps]",200,0.,4.,1000,-20000.,20000.);
 461
 462  checkname="hTOFtime";
 463   TH1F* hTOFtime=new TH1F(checkname.Data(),"Distribution of TOF time Kaon;TOF time(Kaon) [ps];Entries", 1000, 0.,50000.);
 464
 465
 466   fChecks->Add(hptGoodTr);
 467   fChecks->Add(hdistrGoodTr);
 468   fChecks->Add(hTOFsig);
 469   fChecks->Add(hTOFtimeKaonHyptime);
 470   fChecks->Add(hTOFtime);
 471
 472   const char* nameoutput=GetOutputSlot(3)->GetContainer()->GetName();
 473
 474   fNentries=new TH1F(nameoutput, "Integral(1,2) = number of AODs *** Integral(2,3) = number of candidates selected with cuts *** Integral(3,4) = number of D0 selected with cuts *** Integral(4,5) = events with good vertex ***  Integral(5,6) = pt out of bounds", 8,0.,8.);
 475
 476   fNentries->GetXaxis()->SetBinLabel(1,"nEventsAnal");
 477   fNentries->GetXaxis()->SetBinLabel(2,"nCandSel(Cuts)");
 478   fNentries->GetXaxis()->SetBinLabel(3,"nD0Selected");
 479   fNentries->GetXaxis()->SetBinLabel(4,"nEventsGoodVtx");
 480   fNentries->GetXaxis()->SetBinLabel(5,"nEventsGoodVtx+>2tracks");
 481   fNentries->GetXaxis()->SetBinLabel(6,"ptbin = -1");
 482   fNentries->GetXaxis()->SetBinLabel(7,"no daughter");
 483   fNentries->GetXaxis()->SetBinLabel(8,"nCandSel(Tr)");
 484
 485   fNentries->GetXaxis()->SetNdivisions(1,kFALSE);
 486
 487
 488   // Post the data
 489   PostData(1,fOutputMass);
 490   PostData(2,fDistr);
 491   PostData(3,fNentries);
 492   PostData(4,fChecks);
 493
 494   return;
 495 }
 496
 497 //________________________________________________________________________
 498 void AliAnalysisTaskSED0Mass::UserExec(Option_t */*option*/)
 499 {
 500   // Execute analysis for current event:
 501   // heavy flavor candidates association to MC truth
 502   //cout<<"I'm in UserExec"<<endl;
 503
 504
 505     //cuts order
 506     //       printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
 507     //     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
 508     //     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
 509     //     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
 510     //     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
 511     //     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
 512     //     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
 513     //     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
 514     //     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
 515
 516
 517   AliAODEvent *aod = dynamic_cast<AliAODEvent*> (InputEvent());
 518
 519   TString bname;
 520   if(fArray==0){ //D0 candidates
 521     // load D0->Kpi candidates
 522     //cout<<"D0 candidates"<<endl;
 523     bname="D0toKpi";
 524   } else { //LikeSign candidates
 525     // load like sign candidates
 526     //cout<<"LS candidates"<<endl;
 527     bname="LikeSign2Prong";
 528   }
 529
 530   TClonesArray *inputArray=0;
 531
 532   if(!aod && AODEvent() && IsStandardAOD()) {
 533     // In case there is an AOD handler writing a standard AOD, use the AOD
 534     // event in memory rather than the input (ESD) event.
 535     aod = dynamic_cast<AliAODEvent*> (AODEvent());
 536     // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
 537     // have to taken from the AOD event hold by the AliAODExtension
 538     AliAODHandler* aodHandler = (AliAODHandler*)
 539       ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 540
 541     if(aodHandler->GetExtensions()) {
 542       AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
 543       AliAODEvent* aodFromExt = ext->GetAOD();
 544       inputArray=(TClonesArray*)aodFromExt->GetList()->FindObject(bname.Data());
 545     }
 546   } else {
 547     inputArray=(TClonesArray*)aod->GetList()->FindObject(bname.Data());
 548   }
 549
 550
 551   if(!inputArray) {
 552     printf("AliAnalysisTaskSED0Mass::UserExec: input branch not found!\n");
 553     return;
 554   }
 555
 556
 557   TClonesArray *mcArray = 0;
 558   AliAODMCHeader *mcHeader = 0;
 559
 560   if(fReadMC) {
 561     // load MC particles
 562     mcArray = (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
 563     if(!mcArray) {
 564       printf("AliAnalysisTaskSED0Mass::UserExec: MC particles branch not found!\n");
 565       return;
 566     }
 567
 568     // load MC header
 569     mcHeader = (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
 570     if(!mcHeader) {
 571       printf("AliAnalysisTaskSED0Mass::UserExec: MC header branch not found!\n");
 572       return;
 573     }
 574   }
 575
 576   //printf("VERTEX Z %f %f\n",vtx1->GetZ(),mcHeader->GetVtxZ());
 577
 578   //histogram filled with 1 for every AOD
 579   fNentries->Fill(0);
 580
 581
 582
 583   // AOD primary vertex
 584   AliAODVertex *vtx1 = (AliAODVertex*)aod->GetPrimaryVertex();
 585
 586   Bool_t isGoodVtx=kFALSE;
 587
 588    //vtx1->Print();
 589   TString primTitle = vtx1->GetTitle();
 590   if(primTitle.Contains("VertexerTracks") && vtx1->GetNContributors()>0) {
 591     isGoodVtx=kTRUE;
 592     fNentries->Fill(3);
 593   }
 594
 595   //cout<<"Start checks"<<endl;
 596   Int_t ntracks=0,isGoodTrack=0;
 597
 598   if(aod) ntracks=aod->GetNTracks();
 599
 600   //cout<<"ntracks = "<<ntracks<<endl;
 601
 602   //loop on tracks in the event
 603   for (Int_t k=0;k<ntracks;k++){
 604     AliAODTrack* track=aod->GetTrack(k);
 605
 606     //check TOF
 607
 608     if(!(track->GetStatus()&AliESDtrack::kTPCrefit &&
 609          track->GetStatus()&AliESDtrack::kITSrefit &&
 610          track->GetTPCNcls() >=70 &&
 611          track->GetStatus()&AliESDtrack::kTOFpid &&
 612          track->GetStatus()&AliESDtrack::kTOFout &&
 613          track->GetStatus()&AliESDtrack::kTIME)) continue;
 614     AliAODPid *pid = track->GetDetPid();
 615     if(!pid)  {cout<<"No AliAODPid found"<<endl; continue;}
 616
 617     Double_t times[5];
 618     pid->GetIntegratedTimes(times);
 619
 620     ((TH1F*)fChecks->FindObject("hTOFtime"))->Fill(times[3]);
 621     ((TH1F*)fChecks->FindObject("hTOFtimeKaonHyptime"))->Fill(track->P(),pid->GetTOFsignal()-times[3]); //3 is kaon
 622
 623     ((TH1F*)fChecks->FindObject("hTOFsig"))->Fill(pid->GetTOFsignal());
 624     if (pid->GetTOFsignal()< 0) ((TH1F*)fChecks->FindObject("hTOFsig"))->Fill(-1);
 625
 626
 627     //check clusters of the tracks
 628     Int_t nclsTot=0,nclsSPD=0;
 629
 630     for(Int_t l=0;l<6;l++) {
 631       if(TESTBIT(track->GetITSClusterMap(),l)) {
 632         nclsTot++; if(l<2) nclsSPD++;
 633       }
 634     }
 635
 636     if (track->Pt()>0.3 &&
 637         track->GetStatus()&AliESDtrack::kTPCrefit &&
 638         track->GetStatus()&AliESDtrack::kITSrefit &&
 639         nclsTot>3 &&
 640         nclsSPD>0) {//fill hist good tracks
 641       //cout<<"in if"<<endl;
 642       ((TH1F*)fChecks->FindObject("hptGoodTr"))->Fill(track->Pt());
 643       isGoodTrack++;
 644     }
 645     //cout<<"isGoodTrack = "<<isGoodTrack<<endl;
 646     ((TH1F*)fChecks->FindObject("hdistrGoodTr"))->Fill(isGoodTrack);
 647   }
 648   //number of events with good vertex and at least 2 good tracks
 649   if (isGoodTrack>=2 && isGoodVtx) fNentries->Fill(4);
 650
 651
 652   // loop over candidates
 653   Int_t nInD0toKpi = inputArray->GetEntriesFast();
 654   if(fDebug>2) printf("Number of D0->Kpi: %d\n",nInD0toKpi);
 655
 656   for (Int_t iD0toKpi = 0; iD0toKpi < nInD0toKpi; iD0toKpi++) {
 657     //Int_t nPosPairs=0, nNegPairs=0;
 658     //cout<<"inside the loop"<<endl;
 659     AliAODRecoDecayHF2Prong *d = (AliAODRecoDecayHF2Prong*)inputArray->UncheckedAt(iD0toKpi);
 660
 661     //check daughters
 662     if(!(d->GetDaughter(0) || d->GetDaughter(1))) {
 663       AliDebug(1,"at least one daughter not found!");
 664       fNentries->Fill(6);
 665       return;
 666     }
 667
 668     Bool_t unsetvtx=kFALSE;
 669     if(!d->GetOwnPrimaryVtx()) {
 670       d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
 671       unsetvtx=kTRUE;
 672     }
 673
 674
 675     //check reco daughter in acceptance
 676     /*
 677     Double_t eta0=d->EtaProng(0);
 678     Double_t eta1=d->EtaProng(1);
 679     */
 680     if ( fCuts->IsInFiducialAcceptance(d->Pt(),d->Y(421)) ) {
 681       //if( TMath::Abs(eta0)<0.9 && TMath::Abs(eta1)<0.9 ){
 682        //apply cuts on tracks
 683       Int_t isSelected = fCuts->IsSelected(d,AliRDHFCuts::kTracks);
 684       if(((AliAODTrack*)d->GetDaughter(0))->GetTPCNcls() < 70 || ((AliAODTrack*)d->GetDaughter(0))->GetTPCNcls() < 70) isSelected=kFALSE;
 685       if (!isSelected) return;
 686       fNentries->Fill(7);
 687       if(fDebug>2) cout<<"tracks selected"<<endl;
 688
 689       FillVarHists(aod,d,mcArray,fCuts,fDistr);
 690       FillMassHists(d,mcArray,fCuts,fOutputMass);
 691     }
 692
 693     if(unsetvtx) d->UnsetOwnPrimaryVtx();
 694   } //end for prongs
 695
 696
 697   // Post the data
 698   PostData(1,fOutputMass);
 699   PostData(2,fDistr);
 700   PostData(3,fNentries);
 701   PostData(4,fChecks);
 702
 703   return;
 704 }
 705
 706 //____________________________________________________________________________
 707 void AliAnalysisTaskSED0Mass::FillVarHists(AliAODEvent* aod,AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi *cuts, TList *listout){
 708   //
 709   // function used in UserExec to fill variable histograms:
 710   //
 711
 712   //add distr here
 713   UInt_t pdgs[2];
 714
 715   Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
 716   pdgs[0]=211;
 717   pdgs[1]=321;
 718   Double_t minvD0 = part->InvMassD0();
 719   pdgs[1]=211;
 720   pdgs[0]=321;
 721   Double_t minvD0bar = part->InvMassD0bar();
 722   //cout<<"inside mass cut"<<endl;
 723
 724   Int_t pdgDgD0toKpi[2]={321,211};
 725   Int_t lab=-9999;
 726   if(fReadMC) lab=part->MatchToMC(421,arrMC,2,pdgDgD0toKpi); //return MC particle label if the array corresponds to a D0, -1 if not (cf. AliAODRecoDecay.cxx)
 727   //Double_t pt = d->Pt(); //mother pt
 728   Bool_t isSelected=kFALSE;
 729
 730
 731   if(fCutOnDistr){
 732     isSelected = cuts->IsSelected(part,AliRDHFCuts::kCandidate);
 733     if (!isSelected){
 734       //cout<<"Not Selected"<<endl;
 735       return;
 736     }
 737   }
 738
 739   Double_t invmasscut=0.03;
 740
 741   TString fillthispi="",fillthisK="",fillthis="";
 742
 743   Int_t ptbin=cuts->PtBin(part->Pt());
 744   if(ptbin==-1) {fNentries->Fill(5); return;} //out of bounds
 745
 746   //recalculate vertex
 747   AliAODVertex *vtxProp=0x0;
 748   vtxProp=GetPrimaryVtxSkipped(aod,part);
 749   Double_t dz1[2],dz2[2],covar1[3],covar2[3];//,d0xd0proper,errd0xd0proper;
 750   dz1[0]=-99; dz2[0]=-99;
 751   if(vtxProp) {
 752     part->SetOwnPrimaryVtx(vtxProp);
 753     //Bool_t unsetvtx=kTRUE;
 754     //Calculate d0 for daughter tracks with Vtx Skipped
 755     AliESDtrack *esdtrack1=new AliESDtrack((AliVTrack*)part->GetDaughter(0));
 756     AliESDtrack *esdtrack2=new AliESDtrack((AliVTrack*)part->GetDaughter(1));
 757     esdtrack1->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz1,covar1);
 758     esdtrack2->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz2,covar2);
 759     delete esdtrack1;
 760     delete esdtrack2;
 761   }
 762
 763   Double_t d0[2]={dz1[0],dz2[0]};
 764
 765   if(!fCutOnDistr || (fCutOnDistr && isSelected)){ //if no cuts or cuts passed
 766     //printf("\nif no cuts or cuts passed\n");
 767     if(lab>=0 && fReadMC){ //signal
 768
 769       //check pdg of the prongs
 770       AliAODTrack *prong0=(AliAODTrack*)part->GetDaughter(0);
 771       AliAODTrack *prong1=(AliAODTrack*)part->GetDaughter(1);
 772       if(!prong0 || !prong1) {
 773         return;
 774       }
 775       Int_t labprong[2];
 776       labprong[0]=prong0->GetLabel();
 777       labprong[1]=prong1->GetLabel();
 778       AliAODMCParticle *mcprong=0;
 779       Int_t pdgProng[2]={0,0};
 780
 781       for (Int_t iprong=0;iprong<2;iprong++){
 782         if(labprong[iprong]>=0)  mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 783         pdgProng[iprong]=mcprong->GetPdgCode();
 784       }
 785
 786       //no mass cut ditributions: ptbis
 787
 788       fillthispi="hptpiSnoMcut_";
 789       fillthispi+=ptbin;
 790
 791       fillthisK="hptKSnoMcut_";
 792       fillthisK+=ptbin;
 793
 794       if (TMath::Abs(pdgProng[0]) == 211 && TMath::Abs(pdgProng[1]) == 321){
 795         ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(0));
 796         ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(1));
 797       }else {
 798         if (TMath::Abs(pdgProng[0]) == 321 && TMath::Abs(pdgProng[1]) == 211){
 799           ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(0));
 800           ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(1));
 801         }
 802       }
 803
 804       //no mass cut ditributions: mass
 805       fillthis="hMassS_";
 806       fillthis+=ptbin;
 807
 808       if (((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421){//D0
 809         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 810       }
 811       else { //D0bar
 812         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 813       }
 814
 815       //apply cut on invariant mass on the pair
 816       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 817
 818         if(fArray==1) cout<<"LS signal: ERROR"<<endl;
 819         for (Int_t iprong=0; iprong<2; iprong++){
 820           AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(iprong);
 821           labprong[iprong]=prong->GetLabel();
 822
 823           //cout<<"prong name = "<<prong->GetName()<<" label = "<<prong->GetLabel()<<endl;
 824           if(labprong[iprong]>=0)  mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 825           Int_t pdgprong=mcprong->GetPdgCode();
 826
 827           if(TMath::Abs(pdgprong)==211) {
 828             //cout<<"pi"<<endl;
 829
 830             fillthispi="hptpiS_";
 831             fillthispi+=ptbin;
 832             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(iprong));
 833             fillthispi="hd0piS_";
 834             fillthispi+=ptbin;
 835             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->Getd0Prong(iprong));
 836             if(d0[iprong] != -99) {
 837
 838               fillthispi="hd0vpiS_";
 839               fillthispi+=ptbin;
 840               ((TH1F*)listout->FindObject(fillthispi))->Fill(d0[iprong]);
 841             }
 842
 843           }
 844
 845           if(TMath::Abs(pdgprong)==321) {
 846             //cout<<"kappa"<<endl;
 847
 848             fillthisK="hptKS_";
 849             fillthisK+=ptbin;
 850             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(iprong));
 851             fillthisK="hd0KS_";
 852             fillthisK+=ptbin;
 853             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->Getd0Prong(iprong));
 854             if (d0[iprong] != -99){
 855               fillthisK="hd0vKS_";
 856               fillthisK+=ptbin;
 857               ((TH1F*)listout->FindObject(fillthisK))->Fill(d0[iprong]);
 858             }
 859           }
 860
 861           fillthis="hcosthpointd0S_";
 862           fillthis+=ptbin;
 863           ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(iprong));
 864
 865         } //end loop on prongs
 866
 867         fillthis="hdcaS_";
 868         fillthis+=ptbin;
 869         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
 870
 871         fillthis="hcosthetapointS_";
 872         fillthis+=ptbin;
 873         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
 874
 875         fillthis="hcosthpointd0d0S_";
 876         fillthis+=ptbin;
 877         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
 878
 879         fillthis="hcosthetastarS_";
 880         fillthis+=ptbin;
 881         if (((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421)((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
 882         else ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
 883
 884         fillthis="hd0d0S_";
 885         fillthis+=ptbin;
 886         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
 887
 888         if(d0[0] != -99 && d0[1] != -99 ){
 889           fillthis="hd0d0vS_";
 890           fillthis+=ptbin;
 891           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1]);
 892         }
 893
 894         fillthis="hdeclS_";
 895         fillthis+=ptbin;
 896         ((TH1F*)listout->FindObject(fillthis))->Fill(part->DecayLength());
 897
 898         fillthis="hnormdeclS_";
 899         fillthis+=ptbin;
 900         ((TH1F*)listout->FindObject(fillthis))->Fill(part->NormalizedDecayLength());
 901
 902       } //end mass cut
 903
 904     } else{ //Background or LS
 905       //cout<<"is background"<<endl;
 906
 907       //no mass cut distributions: mass, ptbis
 908       fillthis="hMassB_";
 909       fillthis+=ptbin;
 910
 911       if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3))) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 912       if (!fCutOnDistr || (fCutOnDistr && isSelected>1)) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 913
 914       fillthis="hptB1prongnoMcut_";
 915       fillthis+=ptbin;
 916
 917       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 918
 919       fillthis="hptB2prongsnoMcut_";
 920       fillthis+=ptbin;
 921       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 922       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
 923
 924       //apply cut on invariant mass on the pair
 925       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 926
 927
 928         AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
 929         if(!prong) {
 930           if(fDebug>2) cout<<"No daughter found";
 931           return;
 932         }
 933         else{
 934           if(prong->Charge()==1) {fTotPosPairs[ptbin]++;} else {fTotNegPairs[ptbin]++;}
 935         }
 936
 937         //normalise pt distr to half afterwards
 938         fillthis="hptB_";
 939         fillthis+=ptbin;
 940         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 941         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
 942
 943         fillthis="hd0p0B_";
 944         fillthis+=ptbin;
 945         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(0));
 946         fillthis="hd0p1B_";
 947         fillthis+=ptbin;
 948         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(1));
 949
 950         fillthis="hd0vp0B_";
 951         fillthis+=ptbin;
 952         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]);
 953         fillthis="hd0vp1B_";
 954         fillthis+=ptbin;
 955         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[1]);
 956
 957         fillthis="hcosthpointd0B_";
 958         fillthis+=ptbin;
 959         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(0));
 960         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(1));
 961
 962
 963         fillthis="hdcaB_";
 964         fillthis+=ptbin;
 965         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
 966
 967         fillthis="hcosthetastarB_";
 968         fillthis+=ptbin;
 969         if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3)))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
 970         if (!fCutOnDistr || (fCutOnDistr && isSelected>1))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
 971
 972         fillthis="hd0d0B_";
 973         fillthis+=ptbin;
 974         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
 975
 976         fillthis="hcosthetapointB_";
 977         fillthis+=ptbin;
 978         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
 979
 980         fillthis="hcosthpointd0d0B_";
 981         fillthis+=ptbin;
 982         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
 983
 984       }//mass cut
 985     }//else (background)
 986   }
 987   return;
 988 }
 989 //____________________________________________________________________________
 990
 991 void AliAnalysisTaskSED0Mass::FillMassHists(AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi* cuts, TList *listout){
 992   //
 993   // function used in UserExec to fill mass histograms:
 994   //
 995
 996
 997   Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
 998
 999   Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1000   //cout<<"is selected = "<<isSelected<<endl;
1001
1002   //cout<<"check cuts = "<<endl;
1003   //cuts->PrintAll();
1004   if (!isSelected){
1005     //cout<<"Not Selected"<<endl;
1006     return;
1007   }
1008
1009   if(fDebug>2)  cout<<"Candidate selected"<<endl;
1010
1011   Double_t invmassD0 = part->InvMassD0(), invmassD0bar = part->InvMassD0bar();
1012   //printf("SELECTED\n");
1013   Int_t ptbin=cuts->PtBin(part->Pt());
1014
1015   AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
1016   if(!prong) {
1017     AliDebug(2,"No daughter found");
1018     return;
1019   }
1020   else{
1021     if(prong->Charge()==1) {fTotPosPairs[ptbin]++;} else {fTotNegPairs[ptbin]++;}
1022   }
1023
1024   TString fillthis="";
1025   Int_t pdgDgD0toKpi[2]={321,211};
1026   Int_t labD0=-1;
1027   if (fReadMC) labD0 = part->MatchToMC(421,arrMC,2,pdgDgD0toKpi); //return MC particle label if the array corresponds to a D0, -1 if not (cf. AliAODRecoDecay.cxx)
1028
1029   //count candidates selected by cuts
1030   fNentries->Fill(1);
1031   //count true D0 selected by cuts
1032   if (fReadMC && labD0>=0) fNentries->Fill(2);
1033   //PostData(3,fNentries);
1034
1035   if (isSelected==1 || isSelected==3) { //D0
1036     fillthis="histMass_";
1037     fillthis+=ptbin;
1038     //cout<<"Filling "<<fillthis<<endl;
1039
1040     //printf("Fill mass with D0");
1041     ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1042
1043     if(labD0>=0) {
1044       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1045
1046       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1047       Int_t pdgD0 = partD0->GetPdgCode();
1048       //cout<<"pdg = "<<pdgD0<<endl;
1049       if (pdgD0==421){ //D0
1050         //cout<<"Fill S with D0"<<endl;
1051         fillthis="histSgn_";
1052         fillthis+=ptbin;
1053         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1054         if(TMath::Abs(invmassD0 - mPDG) < 0.027){
1055           fillthis="histSgn27_";
1056           fillthis+=ptbin;
1057           ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1058         }
1059       } else{ //it was a D0bar
1060         fillthis="histRfl_";
1061         fillthis+=ptbin;
1062         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1063       }
1064     } else {//background
1065       fillthis="histBkg_";
1066       fillthis+=ptbin;
1067       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1068     }
1069
1070   }
1071   if (isSelected>1) { //D0bar
1072     fillthis="histMass_";
1073     fillthis+=ptbin;
1074     //printf("Fill mass with D0bar");
1075     ((TH1F*)listout->FindObject(fillthis))->Fill(invmassD0bar);
1076
1077     if(labD0>=0) {
1078       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1079       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1080       Int_t pdgD0 = partD0->GetPdgCode();
1081       //cout<<" pdg = "<<pdgD0<<endl;
1082       if (pdgD0==-421){ //D0bar
1083         fillthis="histSgn_";
1084         fillthis+=ptbin;
1085         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1086         if (TMath::Abs(invmassD0bar - mPDG) < 0.027){
1087           fillthis="histSgn27_";
1088           fillthis+=ptbin;
1089           ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1090         }
1091
1092
1093       } else{
1094         fillthis="histRfl_";
1095         fillthis+=ptbin;
1096         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1097       }
1098     } else {//background or LS
1099       fillthis="histBkg_";
1100       fillthis+=ptbin;
1101       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1102     }
1103   }
1104
1105   return;
1106 }
1107
1108 //__________________________________________________________________________
1109 AliAODVertex* AliAnalysisTaskSED0Mass::GetPrimaryVtxSkipped(AliAODEvent *aodev,AliAODRecoDecayHF2Prong *d){
1110   //Calculate the primary vertex w/o the daughter tracks of the candidate
1111
1112   AliESDVertex *vertexESD=0x0;
1113   AliAODVertex *vertexAOD=0x0;
1114   AliVertexerTracks *vertexer = new AliVertexerTracks(aodev->GetMagneticField());
1115
1116   Int_t skipped[2];
1117   Int_t nTrksToSkip=2;
1118   AliAODTrack *dgTrack = (AliAODTrack*)d->GetDaughter(0);
1119   if(!dgTrack){
1120     AliDebug(2,"no daughter found!");
1121     return 0x0;
1122   }
1123   skipped[0]=dgTrack->GetID();
1124   dgTrack = (AliAODTrack*)d->GetDaughter(1);
1125   if(!dgTrack){
1126     AliDebug(2,"no daughter found!");
1127     return 0x0;
1128   }
1129   skipped[1]=dgTrack->GetID();
1130
1131
1132   //
1133   vertexer->SetSkipTracks(nTrksToSkip,skipped);
1134   vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(aodev);
1135   vertexer->SetMinClusters(4);
1136   if(!vertexESD) return vertexAOD;
1137   if(vertexESD->GetNContributors()<=0) {
1138     AliDebug(2,"vertexing failed");
1139     delete vertexESD; vertexESD=NULL;
1140     return vertexAOD;
1141   }
1142
1143   delete vertexer; vertexer=NULL;
1144
1145
1146   // convert to AliAODVertex
1147   Double_t pos[3],cov[6],chi2perNDF;
1148   vertexESD->GetXYZ(pos); // position
1149   vertexESD->GetCovMatrix(cov); //covariance matrix
1150   chi2perNDF = vertexESD->GetChi2toNDF();
1151   delete vertexESD; vertexESD=NULL;
1152
1153   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1154   return vertexAOD;
1155
1156 }
1157
1158
1159 //________________________________________________________________________
1160 void AliAnalysisTaskSED0Mass::Terminate(Option_t */*option*/)
1161 {
1162   // Terminate analysis
1163   //
1164   if(fDebug > 1) printf("AnalysisTaskSED0Mass: Terminate() \n");
1165
1166
1167   fOutputMass = dynamic_cast<TList*> (GetOutputData(1));
1168   if (!fOutputMass) {
1169     printf("ERROR: fOutputMass not available\n");
1170     return;
1171   }
1172   fDistr = dynamic_cast<TList*> (GetOutputData(2));
1173   if (!fDistr) {
1174     printf("ERROR: fDistr not available\n");
1175     return;
1176   }
1177
1178   fNentries = dynamic_cast<TH1F*>(GetOutputData(3));
1179
1180   if(!fNentries){
1181     printf("ERROR: fNEntries not available\n");
1182     return;
1183   }
1184
1185   fChecks = dynamic_cast<TList*> (GetOutputData(4));
1186   if (!fChecks) {
1187     printf("ERROR: fChecks not available\n");
1188     return;
1189   }
1190
1191
1192   for(Int_t ipt=0;ipt<5;ipt++){ //change 5 in GetNPtBins when sure it is written and check
1193
1194     //sum d0p0 and d0p1
1195     TString d0Bname=Form("hd0B_%d",ipt),d0p0Bname=Form("hd0p0B_%d",ipt),d0p1Bname=Form("hd0p1B_%d",ipt);
1196     ((TH1F*)fDistr->FindObject(d0Bname))->Add( ((TH1F*)fDistr->FindObject(d0p0Bname)), ((TH1F*)fDistr->FindObject(d0p1Bname)) );
1197
1198
1199     if(fArray==1){
1200       fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[ipt]*fTotNegPairs[ipt]);
1201
1202
1203       if(fLsNormalization>1e-6) {
1204
1205         TString massName="histMass_";
1206         massName+=ipt;
1207         ((TH1F*)fOutputMass->FindObject(massName))->Scale((1/fLsNormalization)*((TH1F*)fOutputMass->FindObject(massName))->GetEntries());
1208
1209       }
1210
1211
1212       fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[4]*fTotNegPairs[4]);
1213
1214       if(fLsNormalization>1e-6) {
1215
1216         TString nameDistr="hptB_";
1217         nameDistr+=ipt;
1218         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1219         nameDistr="hdcaB_";
1220         nameDistr+=ipt;
1221         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1222         nameDistr="hcosthetastarB_";
1223         nameDistr+=ipt;
1224         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1225         nameDistr="hd0B_";
1226         nameDistr+=ipt;
1227         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1228         nameDistr="hd0d0B_";
1229         nameDistr+=ipt;
1230         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1231         nameDistr="hcosthetapointB_";
1232         nameDistr+=ipt;
1233         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1234         nameDistr="hcosthpointd0d0B_";
1235         nameDistr+=ipt;
1236         ((TH2F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH2F*)fDistr->FindObject(nameDistr))->GetEntries());
1237
1238       }
1239     }
1240   }
1241   TString cvname,cstname;
1242
1243   if (fArray==0){
1244     cvname="D0invmass";
1245     cstname="cstat0";
1246   } else {
1247     cvname="LSinvmass";
1248     cstname="cstat1";
1249   }
1250
1251   TCanvas *cMass=new TCanvas(cvname,cvname);
1252   cMass->cd();
1253   ((TH1F*)fOutputMass->FindObject("histMass_3"))->Draw();
1254
1255   TCanvas* cStat=new TCanvas(cstname,Form("Stat%s",fArray ? "LS" : "D0"));
1256   cStat->cd();
1257   cStat->SetGridy();
1258   fNentries->Draw("htext0");
1259
1260   // TCanvas *ccheck=new TCanvas(Form("cc%d",fArray),Form("cc%d",fArray));
1261   // ccheck->cd();
1262
1263   return;
1264 }
1265