PWG3/vertexingHF/AliAnalysisTaskSED0Mass.cxx

   1 /**************************************************************************
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   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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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 #include "AliNormalizationCounter.h"
  52
  53 ClassImp(AliAnalysisTaskSED0Mass)
  54
  55
  56 //________________________________________________________________________
  57 AliAnalysisTaskSED0Mass::AliAnalysisTaskSED0Mass():
  58 AliAnalysisTaskSE(),
  59 fOutputMass(0),
  60 fDistr(0),
  61 fNentries(0),
  62 fCuts(0),
  63 fArray(0),
  64 fReadMC(0),
  65 fCutOnDistr(0),
  66 fUsePid4Distr(0),
  67 fCounter(0),
  68 fNPtBins(1),
  69 fLsNormalization(1.),
  70 fFillOnlyD0D0bar(0)
  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 fCuts(0),
  84 fArray(0),
  85 fReadMC(0),
  86 fCutOnDistr(0),
  87 fUsePid4Distr(0),
  88 fCounter(0),
  89 fNPtBins(1),
  90 fLsNormalization(1.),
  91 fFillOnlyD0D0bar(0)
  92
  93 {
  94   // Default constructor
  95
  96   fNPtBins=cuts->GetNPtBins();
  97   // fTotPosPairs=new Int_t[fNPtBins];
  98   // fTotNegPairs=new Int_t[fNPtBins];
  99   // for(Int_t i=0;i<fNPtBins;i++) {fTotPosPairs[i]=0; fTotNegPairs[i]=0;}
 100
 101   fCuts=cuts;
 102
 103   // Output slot #1 writes into a TList container (mass with cuts)
 104   DefineOutput(1,TList::Class());  //My private output
 105   // Output slot #2 writes into a TList container (distributions)
 106   DefineOutput(2,TList::Class());  //My private output
 107   // Output slot #3 writes into a TH1F container (number of events)
 108   DefineOutput(3,TH1F::Class());  //My private output
 109   // Output slot #4 writes into a TList container (cuts)
 110   DefineOutput(4,AliRDHFCutsD0toKpi::Class());  //My private output
 111   // Output slot #5 writes Normalization Counter
 112   DefineOutput(5,AliNormalizationCounter::Class());
 113 }
 114
 115 //________________________________________________________________________
 116 AliAnalysisTaskSED0Mass::~AliAnalysisTaskSED0Mass()
 117 {
 118    if (fOutputMass) {
 119     delete fOutputMass;
 120     fOutputMass = 0;
 121   }
 122   if (fDistr) {
 123     delete fDistr;
 124     fDistr = 0;
 125   }
 126   if (fCuts) {
 127     delete fCuts;
 128     fCuts = 0;
 129   }
 130   if (fNentries){
 131     delete fNentries;
 132     fNentries = 0;
 133   }
 134   if(fCounter){
 135     delete fCounter;
 136     fCounter=0;
 137   }
 138
 139 }
 140
 141 //________________________________________________________________________
 142 void AliAnalysisTaskSED0Mass::Init()
 143 {
 144   // Initialization
 145
 146   if(fDebug > 1) printf("AnalysisTaskSED0Mass::Init() \n");
 147
 148
 149   AliRDHFCutsD0toKpi* copyfCuts=new AliRDHFCutsD0toKpi(*fCuts);
 150   const char* nameoutput=GetOutputSlot(4)->GetContainer()->GetName();
 151   copyfCuts->SetName(nameoutput);
 152   // Post the data
 153   PostData(4,copyfCuts);
 154
 155
 156   return;
 157 }
 158
 159 //________________________________________________________________________
 160 void AliAnalysisTaskSED0Mass::UserCreateOutputObjects()
 161 {
 162
 163   // Create the output container
 164   //
 165   if(fDebug > 1) printf("AnalysisTaskSED0Mass::UserCreateOutputObjects() \n");
 166
 167   // Several histograms are more conveniently managed in a TList
 168   fOutputMass = new TList();
 169   fOutputMass->SetOwner();
 170   fOutputMass->SetName("listMass");
 171
 172   fDistr = new TList();
 173   fDistr->SetOwner();
 174   fDistr->SetName("distributionslist");
 175
 176   TString nameMass=" ",nameSgn27=" ",nameSgn=" ", nameBkg=" ", nameRfl=" ",nameMassNocutsS =" ",nameMassNocutsB =" ", namedistr=" ";
 177
 178   for(Int_t i=0;i<fCuts->GetNPtBins();i++){
 179
 180     nameMass="histMass_";
 181     nameMass+=i;
 182     nameSgn27="histSgn27_";
 183     nameSgn27+=i;
 184     nameSgn="histSgn_";
 185     nameSgn+=i;
 186     nameBkg="histBkg_";
 187     nameBkg+=i;
 188     nameRfl="histRfl_";
 189     nameRfl+=i;
 190     nameMassNocutsS="hMassS_";
 191     nameMassNocutsS+=i;
 192     nameMassNocutsB="hMassB_";
 193     nameMassNocutsB+=i;
 194
 195     //histograms of cut variable distributions
 196
 197     //  pT
 198     namedistr="hptpiS_";
 199     namedistr+=i;
 200     TH1F *hptpiS = new TH1F(namedistr.Data(), "P_{T} distribution (pions);p_{T} [GeV/c]",200,0.,8.);
 201
 202     namedistr="hptKS_";
 203     namedistr+=i;
 204     TH1F *hptKS = new TH1F(namedistr.Data(), "P_{T} distribution (kaons);p_{T} [GeV/c]",200,0.,8.);
 205
 206     namedistr="hptB_";
 207     namedistr+=i;
 208     TH1F *hptB = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 209
 210     //  pT no mass cut
 211     // namedistr="hptpiSnoMcut_";
 212     // namedistr+=i;
 213     // TH1F *hptpiSnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution (pions);p_{T} [GeV/c]",200,0.,8.);
 214
 215     // namedistr="hptKSnoMcut_";
 216     // namedistr+=i;
 217     // TH1F *hptKSnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution (kaons);p_{T} [GeV/c]",200,0.,8.);
 218
 219     // namedistr="hptB1prongnoMcut_";
 220     // namedistr+=i;
 221     // TH1F *hptB1pnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 222
 223     // namedistr="hptB2prongsnoMcut_";
 224     // namedistr+=i;
 225     // TH1F *hptB2pnoMcut = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
 226
 227     // fDistr->Add(hptpiSnoMcut);
 228     // fDistr->Add(hptKSnoMcut);
 229     // fDistr->Add(hptB1pnoMcut);
 230     // fDistr->Add(hptB2pnoMcut);
 231
 232
 233     //  dca
 234     namedistr="hdcaS_";
 235     namedistr+=i;
 236     TH1F *hdcaS = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
 237     namedistr="hdcaB_";
 238     namedistr+=i;
 239     TH1F *hdcaB = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
 240
 241     //  costhetastar
 242     namedistr="hcosthetastarS_";
 243     namedistr+=i;
 244     TH1F *hcosthetastarS = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
 245     namedistr="hcosthetastarB_";
 246     namedistr+=i;
 247     TH1F *hcosthetastarB = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
 248
 249     // impact parameter
 250     namedistr="hd0piS_";
 251     namedistr+=i;
 252     TH1F *hd0piS = new TH1F(namedistr.Data(), "Impact parameter distribution (pions);d0(#pi) [cm]",200,-0.1,0.1);
 253
 254     namedistr="hd0KS_";
 255     namedistr+=i;
 256     TH1F *hd0KS = new TH1F(namedistr.Data(), "Impact parameter distribution (kaons);d0(K) [cm]",200,-0.1,0.1);
 257
 258     namedistr="hd0B_";
 259     namedistr+=i;
 260     TH1F *hd0B = new TH1F(namedistr.Data(), "Impact parameter distribution (both);d0 [cm]",200,-0.1,0.1);
 261
 262     namedistr="hd0p0B_";
 263     namedistr+=i;
 264     TH1F *hd0p0B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong +);d0 [cm]",200,-0.1,0.1);
 265
 266     namedistr="hd0p1B_";
 267     namedistr+=i;
 268     TH1F *hd0p1B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong -);d0 [cm]",200,-0.1,0.1);
 269
 270     namedistr="hd0moresB_";
 271     namedistr+=i;
 272     TH1F *hd0moresB = new TH1F(namedistr.Data(), "Impact parameter distribution (both);d0 [cm]",200,-0.1,0.1);
 273
 274     namedistr="hd0d0moresB_";
 275     namedistr+=i;
 276     TH1F *hd0d0moresB = new TH1F(namedistr.Data(), "Impact parameter distribution (prong +);d0 [cm]",200,-0.001,0.001);
 277
 278     namedistr="hd0d0S_";
 279     namedistr+=i;
 280     TH1F *hd0d0S = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 281     namedistr="hd0d0B_";
 282     namedistr+=i;
 283     TH1F *hd0d0B = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
 284
 285     //decay lenght
 286     namedistr="hdeclS_";
 287     namedistr+=i;
 288     TH1F *hdeclengthS = new TH1F(namedistr.Data(), "Decay Length distribution;Decay Length [cm]",200,0,0.15);
 289
 290     namedistr="hdeclB_";
 291     namedistr+=i;
 292     TH1F *hdeclengthB = new TH1F(namedistr.Data(), "Decay Length distribution;Decay Length [cm]",200,0,0.15);
 293
 294     namedistr="hnormdeclS_";
 295     namedistr+=i;
 296     TH1F *hnormdeclengthS = new TH1F(namedistr.Data(), "Normalized Decay Length distribution;Decay Length/Err ",200,0,6.);
 297
 298     namedistr="hnormdeclB_";
 299     namedistr+=i;
 300     TH1F *hnormdeclengthB = new TH1F(namedistr.Data(), "Normalized Decay Length distribution;Decay Length/Err ",200,0,6.);
 301
 302    //  costhetapoint
 303     namedistr="hcosthetapointS_";
 304     namedistr+=i;
 305     TH1F *hcosthetapointS = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 306     namedistr="hcosthetapointB_";
 307     namedistr+=i;
 308     TH1F *hcosthetapointB = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 309
 310     namedistr="hcosthetapointmoresB_";
 311     namedistr+=i;
 312     TH1F *hcosthetapointmoresB = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 313
 314    //  costhetapoint vs d0 or d0d0
 315     namedistr="hcosthpointd0S_";
 316     namedistr+=i;
 317     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);
 318
 319     namedistr="hcosthpointd0B_";
 320     namedistr+=i;
 321     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);
 322
 323     namedistr="hcosthpointd0d0S_";
 324     namedistr+=i;
 325     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);
 326     namedistr="hcosthpointd0d0B_";
 327     namedistr+=i;
 328     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);
 329
 330     fDistr->Add(hptpiS);
 331     fDistr->Add(hptKS);
 332     fDistr->Add(hptB);
 333
 334     fDistr->Add(hdcaS);
 335     fDistr->Add(hdcaB);
 336
 337     fDistr->Add(hd0piS);
 338     fDistr->Add(hd0KS);
 339     fDistr->Add(hd0B);
 340     fDistr->Add(hd0p0B);
 341     fDistr->Add(hd0p1B);
 342     fDistr->Add(hd0moresB);
 343
 344     fDistr->Add(hd0d0S);
 345     fDistr->Add(hd0d0B);
 346     fDistr->Add(hd0d0moresB);
 347
 348     fDistr->Add(hcosthetastarS);
 349     fDistr->Add(hcosthetastarB);
 350
 351     fDistr->Add(hcosthetapointS);
 352     fDistr->Add(hcosthetapointB);
 353     fDistr->Add(hcosthetapointmoresB);
 354
 355     fDistr->Add(hdeclengthS);
 356     fDistr->Add(hdeclengthB);
 357
 358     fDistr->Add(hnormdeclengthS);
 359     fDistr->Add(hnormdeclengthB);
 360
 361     fDistr->Add(hcosthpointd0S);
 362     fDistr->Add(hcosthpointd0B);
 363
 364     fDistr->Add(hcosthpointd0d0S);
 365     fDistr->Add(hcosthpointd0d0B);
 366
 367     //histograms filled only when the secondary vertex is recalculated w/o the daughter tracks (as requested in the cut object)
 368
 369     if(fCuts->GetIsPrimaryWithoutDaughters()){
 370       namedistr="hd0vmoresB_";
 371       namedistr+=i;
 372       TH1F *hd0vmoresB = new TH1F(namedistr.Data(), "Impact parameter distribution (both);d0 [cm]",200,-0.1,0.1);
 373
 374       namedistr="hd0d0vmoresB_";
 375       namedistr+=i;
 376       TH1F *hd0d0vmoresB = new TH1F(namedistr.Data(), "Impact parameter distribution (prong +);d0 [cm]",200,-0.001,0.001);
 377
 378
 379       namedistr="hd0vpiS_";
 380       namedistr+=i;
 381       TH1F *hd0vpiS = new TH1F(namedistr.Data(), "Impact parameter distribution (pions)(vtx w/o these tracks);d0(#pi) [cm]",200,-0.1,0.1);
 382
 383       namedistr="hd0vKS_";
 384       namedistr+=i;
 385       TH1F *hd0vKS = new TH1F(namedistr.Data(), "Impact parameter distribution (kaons) (vtx w/o these tracks);d0(K) [cm]",200,-0.1,0.1);
 386       namedistr="hd0vB_";
 387       namedistr+=i;
 388       TH1F *hd0vB = new TH1F(namedistr.Data(), "Impact parameter distribution (vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 389
 390       namedistr="hd0vp0B_";
 391       namedistr+=i;
 392       TH1F *hd0vp0B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong + ** vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 393
 394       namedistr="hd0vp1B_";
 395       namedistr+=i;
 396       TH1F *hd0vp1B = new TH1F(namedistr.Data(), "Impact parameter distribution (prong - ** vtx w/o these tracks);d0 [cm]",200,-0.1,0.1);
 397
 398
 399       namedistr="hd0d0vS_";
 400       namedistr+=i;
 401       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);
 402       namedistr="hd0d0vB_";
 403       namedistr+=i;
 404       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);
 405
 406
 407       namedistr="hdeclvS_";
 408       namedistr+=i;
 409       TH1F *hdeclengthvS = new TH1F(namedistr.Data(), "Decay Length distribution (vtx w/o tracks);Decay Length [cm]",200,0,0.6);
 410
 411       namedistr="hdeclvB_";
 412       namedistr+=i;
 413       TH1F *hdeclengthvB = new TH1F(namedistr.Data(), "Decay Length distribution (vtx w/o tracks);Decay Length [cm]",200,0,0.6);
 414
 415       namedistr="hnormdeclvS_";
 416       namedistr+=i;
 417       TH1F *hnormdeclengthvS = new TH1F(namedistr.Data(), "Normalized Decay Length distribution (vtx w/o tracks);Decay Length/Err ",200,0,10.);
 418
 419       namedistr="hnormdeclvB_";
 420       namedistr+=i;
 421       TH1F *hnormdeclengthvB = new TH1F(namedistr.Data(), "Normalized Decay Length distribution (vtx w/o tracks);Decay Length/Err ",200,0,10.);
 422
 423
 424
 425       fDistr->Add(hd0vpiS);
 426       fDistr->Add(hd0vKS);
 427       fDistr->Add(hd0vB);
 428       fDistr->Add(hd0vp0B);
 429       fDistr->Add(hd0vp1B);
 430       fDistr->Add(hd0vmoresB);
 431
 432       fDistr->Add(hd0d0vS);
 433       fDistr->Add(hd0d0vB);
 434       fDistr->Add(hd0d0vmoresB);
 435
 436       fDistr->Add(hdeclengthvS);
 437       fDistr->Add(hdeclengthvB);
 438
 439       fDistr->Add(hnormdeclengthvS);
 440       fDistr->Add(hnormdeclengthvB);
 441     }
 442
 443     //histograms of invariant mass distributions
 444
 445     TH1F* tmpMt = new TH1F(nameMass.Data(),"D^{0} invariant mass; M [GeV]; Entries",200,1.5648,2.1648);
 446     TH1F *tmpMl=(TH1F*)tmpMt->Clone();
 447     tmpMt->Sumw2();
 448     tmpMl->Sumw2();
 449
 450     //to compare with AliAnalysisTaskCharmFraction
 451     // TH1F* tmpS27t = new TH1F(nameSgn27.Data(),"D^{0} invariant mass in M(D^{0}) +/- 27 MeV - MC; M [GeV]; Entries",200,1.5648,2.1648);
 452     // TH1F *tmpS27l=(TH1F*)tmpS27t->Clone();
 453     // tmpS27t->Sumw2();
 454     // tmpS27l->Sumw2();
 455
 456     //distribution w/o cuts
 457     //   TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,0.7,3.);
 458     TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,1.5648,2.1648); //range (MD0-300MeV, mD0 + 300MeV)
 459     TH1F *tmpMB=(TH1F*)tmpMS->Clone();
 460     tmpMB->SetName(nameMassNocutsB.Data());
 461     tmpMS->Sumw2();
 462     tmpMB->Sumw2();
 463
 464     //MC signal and background
 465     TH1F* tmpSt = new TH1F(nameSgn.Data(), "D^{0} invariant mass - MC; M [GeV]; Entries",200,1.5648,2.1648);
 466     TH1F *tmpSl=(TH1F*)tmpSt->Clone();
 467     tmpSt->Sumw2();
 468     tmpSl->Sumw2();
 469
 470     TH1F* tmpBt = new TH1F(nameBkg.Data(), "Background invariant mass - MC; M [GeV]; Entries",200,1.5648,2.1648);
 471     TH1F *tmpBl=(TH1F*)tmpBt->Clone();
 472     tmpBt->Sumw2();
 473     tmpBl->Sumw2();
 474
 475     //Reflection: histo filled with D0Mass which pass the cut (also) as D0bar and with D0bar which pass (also) the cut as D0
 476     TH1F* tmpRt = new TH1F(nameRfl.Data(), "Reflected signal invariant mass - MC; M [GeV]; Entries",200,1.5648,2.1648);
 477     TH1F *tmpRl=(TH1F*)tmpRt->Clone();
 478     tmpRt->Sumw2();
 479     tmpRl->Sumw2();
 480   //  printf("Created histograms %s\t%s\t%s\t%s\n",tmpM->GetName(),tmpS->GetName(),tmpB->GetName(),tmpR->GetName());
 481
 482     fOutputMass->Add(tmpMt);
 483     fOutputMass->Add(tmpSt);
 484     //    fOutputMass->Add(tmpS27t);
 485     fOutputMass->Add(tmpBt);
 486     fOutputMass->Add(tmpRt);
 487
 488     fDistr->Add(tmpMS);
 489     fDistr->Add(tmpMB);
 490
 491
 492   }
 493
 494   if(fArray==1){
 495     namedistr="hpospair";
 496     TH1F* hpospair=new TH1F(namedistr.Data(),"Number of positive pairs",2*fCuts->GetNPtBins(),-0.5,fCuts->GetNPtBins()-0.5);
 497     namedistr="hnegpair";
 498     TH1F* hnegpair=new TH1F(namedistr.Data(),"Number of negative pairs",fCuts->GetNPtBins(),-0.5,2*fCuts->GetNPtBins()-0.5);
 499     fDistr->Add(hpospair);
 500     fDistr->Add(hnegpair);
 501   }
 502
 503   const char* nameoutput=GetOutputSlot(3)->GetContainer()->GetName();
 504
 505   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", 15,-0.5,14.5);
 506
 507   fNentries->GetXaxis()->SetBinLabel(1,"nEventsAnal");
 508   fNentries->GetXaxis()->SetBinLabel(2,"nCandSel(Cuts)");
 509   fNentries->GetXaxis()->SetBinLabel(3,"nD0Selected");
 510   fNentries->GetXaxis()->SetBinLabel(4,"nEventsGoodVtxS");
 511   fNentries->GetXaxis()->SetBinLabel(5,"ptbin = -1");
 512   fNentries->GetXaxis()->SetBinLabel(6,"no daughter");
 513   fNentries->GetXaxis()->SetBinLabel(7,"nCandSel(Tr)");
 514   fNentries->GetXaxis()->SetBinLabel(8,"PID=0");
 515   fNentries->GetXaxis()->SetBinLabel(9,"PID=1");
 516   fNentries->GetXaxis()->SetBinLabel(10,"PID=2");
 517   fNentries->GetXaxis()->SetBinLabel(11,"PID=3");
 518   fNentries->GetXaxis()->SetBinLabel(12,"K");
 519   fNentries->GetXaxis()->SetBinLabel(13,"Lambda");
 520   fNentries->GetXaxis()->SetBinLabel(14,"Pile-up Rej");
 521   fNentries->GetXaxis()->SetBinLabel(15,"N. of 0SMH");
 522   fNentries->GetXaxis()->SetNdivisions(1,kFALSE);
 523
 524   fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
 525
 526   // Post the data
 527   PostData(1,fOutputMass);
 528   PostData(2,fDistr);
 529   PostData(3,fNentries);
 530   PostData(5,fCounter);
 531   return;
 532 }
 533
 534 //________________________________________________________________________
 535 void AliAnalysisTaskSED0Mass::UserExec(Option_t */*option*/)
 536 {
 537   // Execute analysis for current event:
 538   // heavy flavor candidates association to MC truth
 539   //cout<<"I'm in UserExec"<<endl;
 540
 541
 542     //cuts order
 543     //       printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
 544     //     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
 545     //     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
 546     //     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
 547     //     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
 548     //     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
 549     //     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
 550     //     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
 551     //     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
 552
 553
 554   AliAODEvent *aod = dynamic_cast<AliAODEvent*> (InputEvent());
 555
 556   TString bname;
 557   if(fArray==0){ //D0 candidates
 558     // load D0->Kpi candidates
 559     //cout<<"D0 candidates"<<endl;
 560     bname="D0toKpi";
 561   } else { //LikeSign candidates
 562     // load like sign candidates
 563     //cout<<"LS candidates"<<endl;
 564     bname="LikeSign2Prong";
 565   }
 566
 567   TClonesArray *inputArray=0;
 568
 569   if(!aod && AODEvent() && IsStandardAOD()) {
 570     // In case there is an AOD handler writing a standard AOD, use the AOD
 571     // event in memory rather than the input (ESD) event.
 572     aod = dynamic_cast<AliAODEvent*> (AODEvent());
 573     // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
 574     // have to taken from the AOD event hold by the AliAODExtension
 575     AliAODHandler* aodHandler = (AliAODHandler*)
 576       ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 577
 578     if(aodHandler->GetExtensions()) {
 579       AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
 580       AliAODEvent* aodFromExt = ext->GetAOD();
 581       inputArray=(TClonesArray*)aodFromExt->GetList()->FindObject(bname.Data());
 582     }
 583   } else if(aod) {
 584     inputArray=(TClonesArray*)aod->GetList()->FindObject(bname.Data());
 585   }
 586
 587
 588   if(!inputArray || !aod) {
 589     printf("AliAnalysisTaskSED0Mass::UserExec: input branch not found!\n");
 590     return;
 591   }
 592
 593   // fix for temporary bug in ESDfilter
 594   // the AODs with null vertex pointer didn't pass the PhysSel
 595   if(!aod->GetPrimaryVertex() || TMath::Abs(aod->GetMagneticField())<0.001) return;
 596
 597
 598   TClonesArray *mcArray = 0;
 599   AliAODMCHeader *mcHeader = 0;
 600
 601   if(fReadMC) {
 602     // load MC particles
 603     mcArray = (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
 604     if(!mcArray) {
 605       printf("AliAnalysisTaskSED0Mass::UserExec: MC particles branch not found!\n");
 606       return;
 607     }
 608
 609     // load MC header
 610     mcHeader = (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
 611     if(!mcHeader) {
 612       printf("AliAnalysisTaskSED0Mass::UserExec: MC header branch not found!\n");
 613       return;
 614     }
 615   }
 616
 617   //printf("VERTEX Z %f %f\n",vtx1->GetZ(),mcHeader->GetVtxZ());
 618
 619   //histogram filled with 1 for every AOD
 620   fNentries->Fill(0);
 621   fCounter->StoreEvent(aod,fReadMC);
 622
 623   // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD, C0SMH-B-NOPF-ALL
 624   TString trigclass=aod->GetFiredTriggerClasses();
 625   if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD") || trigclass.Contains("C0SMH-B-NOPF-ALL")) fNentries->Fill(14);
 626
 627   if(!fCuts->IsEventSelected(aod)) {
 628     if(fCuts->GetWhyRejection()==1) // rejected for pileup
 629       fNentries->Fill(13);
 630     return;
 631   }
 632
 633   // AOD primary vertex
 634   AliAODVertex *vtx1 = (AliAODVertex*)aod->GetPrimaryVertex();
 635
 636   Bool_t isGoodVtx=kFALSE;
 637
 638    //vtx1->Print();
 639   TString primTitle = vtx1->GetTitle();
 640   if(primTitle.Contains("VertexerTracks") && vtx1->GetNContributors()>0) {
 641     isGoodVtx=kTRUE;
 642     fNentries->Fill(3);
 643   }
 644
 645   // loop over candidates
 646   Int_t nInD0toKpi = inputArray->GetEntriesFast();
 647   if(fDebug>2) printf("Number of D0->Kpi: %d\n",nInD0toKpi);
 648
 649   // FILE *f=fopen("4display.txt","a");
 650   // fprintf(f,"Number of D0->Kpi: %d\n",nInD0toKpi);
 651   Int_t nSelectedloose=0,nSelectedtight=0;
 652   for (Int_t iD0toKpi = 0; iD0toKpi < nInD0toKpi; iD0toKpi++) {
 653     //Int_t nPosPairs=0, nNegPairs=0;
 654     //cout<<"inside the loop"<<endl;
 655     AliAODRecoDecayHF2Prong *d = (AliAODRecoDecayHF2Prong*)inputArray->UncheckedAt(iD0toKpi);
 656
 657     //check daughters
 658     if(!(d->GetDaughter(0) || d->GetDaughter(1))) {
 659       AliDebug(1,"at least one daughter not found!");
 660       fNentries->Fill(5);
 661       continue;
 662     }
 663
 664     // Bool_t unsetvtx=kFALSE;
 665     // if(!d->GetOwnPrimaryVtx()) {
 666     //   d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
 667     //   unsetvtx=kTRUE;
 668     // }
 669
 670
 671     //check reco daughter in acceptance
 672     /*
 673     Double_t eta0=d->EtaProng(0);
 674     Double_t eta1=d->EtaProng(1);
 675     */
 676     if ( fCuts->IsInFiducialAcceptance(d->Pt(),d->Y(421)) ) {
 677       //if( TMath::Abs(eta0)<0.9 && TMath::Abs(eta1)<0.9 ){
 678        //apply cuts on tracks
 679       nSelectedloose++;
 680       Int_t isSelected = fCuts->IsSelected(d,AliRDHFCuts::kTracks);
 681       if(((AliAODTrack*)d->GetDaughter(0))->GetTPCNcls() < 70 || ((AliAODTrack*)d->GetDaughter(1))->GetTPCNcls() < 70) isSelected=kFALSE;
 682       if (!isSelected) continue;
 683       nSelectedtight++;
 684       fNentries->Fill(6);
 685       if(fDebug>2) cout<<"tracks selected"<<endl;
 686
 687       Int_t ptbin=fCuts->PtBin(d->Pt());
 688       if(ptbin==-1) {fNentries->Fill(4); continue;} //out of bounds
 689       FillVarHists(aod,d,mcArray,fCuts,fDistr);
 690       FillMassHists(aod,d,mcArray,fCuts,fOutputMass);
 691     }
 692
 693     //if(unsetvtx) d->UnsetOwnPrimaryVtx();
 694   } //end for prongs
 695   fCounter->StoreCandidates(aod,nSelectedloose,kTRUE);
 696   fCounter->StoreCandidates(aod,nSelectedtight,kFALSE);
 697   // Post the data
 698   PostData(1,fOutputMass);
 699   PostData(2,fDistr);
 700   PostData(3,fNentries);
 701   PostData(5,fCounter);
 702   return;
 703 }
 704
 705 //____________________________________________________________________________
 706 void AliAnalysisTaskSED0Mass::FillVarHists(AliAODEvent* aod,AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi *cuts, TList *listout){
 707   //
 708   // function used in UserExec to fill variable histograms:
 709   //
 710
 711   //add distr here
 712   UInt_t pdgs[2];
 713
 714   Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
 715   pdgs[0]=211;
 716   pdgs[1]=321;
 717   Double_t minvD0 = part->InvMassD0();
 718   pdgs[1]=211;
 719   pdgs[0]=321;
 720   Double_t minvD0bar = part->InvMassD0bar();
 721   //cout<<"inside mass cut"<<endl;
 722
 723   Int_t pdgDgD0toKpi[2]={321,211};
 724   Int_t lab=-9999;
 725   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)
 726   //Double_t pt = d->Pt(); //mother pt
 727   Int_t isSelected=3;
 728   Int_t isSelectedPID=99;
 729
 730   //isSelectedPID = cuts->IsSelected(part,AliRDHFCuts::kPID); //0 rejected,1 D0,2 Dobar, 3 both
 731   isSelectedPID = cuts->IsSelectedPID(part); //0 rejected,1 D0,2 Dobar, 3 both
 732   if (isSelectedPID==0)fNentries->Fill(7);
 733   if (isSelectedPID==1)fNentries->Fill(8);
 734   if (isSelectedPID==2)fNentries->Fill(9);
 735   if (isSelectedPID==3)fNentries->Fill(10);
 736     //fNentries->Fill(8+isSelectedPID);
 737
 738   if(fCutOnDistr){
 739     isSelected = cuts->IsSelected(part,AliRDHFCuts::kCandidate,aod); //cuts with variables recalculated with new vertex (w/o daughters)
 740     if (!isSelected){
 741       //cout<<"Not Selected"<<endl;
 742       return;
 743     }
 744   }
 745
 746   Double_t invmasscut=0.03;
 747
 748   TString fillthispi="",fillthisK="",fillthis="";
 749
 750   Int_t ptbin=cuts->PtBin(part->Pt());
 751
 752   Double_t dz1[2],dz2[2],covar1[3],covar2[3];//,d0xd0proper,errd0xd0proper;
 753   dz1[0]=-99; dz2[0]=-99;
 754   Double_t d0[2];
 755   Double_t decl[2]={-99,-99};
 756   Bool_t recalcvtx=kFALSE;
 757
 758   if(fCuts->GetIsPrimaryWithoutDaughters()){
 759     recalcvtx=kTRUE;
 760     //recalculate vertex
 761     AliAODVertex *vtxProp=0x0;
 762     vtxProp=GetPrimaryVtxSkipped(aod,part);
 763     if(vtxProp) {
 764       part->SetOwnPrimaryVtx(vtxProp);
 765       //Bool_t unsetvtx=kTRUE;
 766       //Calculate d0 for daughter tracks with Vtx Skipped
 767       AliESDtrack *esdtrack1=new AliESDtrack((AliVTrack*)part->GetDaughter(0));
 768       AliESDtrack *esdtrack2=new AliESDtrack((AliVTrack*)part->GetDaughter(1));
 769       esdtrack1->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz1,covar1);
 770       esdtrack2->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz2,covar2);
 771       delete vtxProp; vtxProp=NULL;
 772       delete esdtrack1;
 773       delete esdtrack2;
 774     }
 775
 776     d0[0]=dz1[0];
 777     d0[1]=dz2[0];
 778
 779     decl[0]=part->DecayLength();
 780     decl[1]=part->NormalizedDecayLength();
 781     part->UnsetOwnPrimaryVtx();
 782
 783   }
 784
 785
 786   if(!fCutOnDistr || (fCutOnDistr && isSelected)){ //if no cuts or cuts passed
 787     //printf("\nif no cuts or cuts passed\n");
 788
 789     //disable the PID
 790     if(!fUsePid4Distr) isSelectedPID=0;
 791     if((lab>=0 && fReadMC) || (!fReadMC && isSelectedPID)){ //signal (from MC or PID)
 792
 793       //check pdg of the prongs
 794       AliAODTrack *prong0=(AliAODTrack*)part->GetDaughter(0);
 795       AliAODTrack *prong1=(AliAODTrack*)part->GetDaughter(1);
 796       if(!prong0 || !prong1) {
 797         return;
 798       }
 799       Int_t labprong[2];
 800       if(fReadMC){
 801         labprong[0]=prong0->GetLabel();
 802         labprong[1]=prong1->GetLabel();
 803       }
 804       AliAODMCParticle *mcprong=0;
 805       Int_t pdgProng[2]={0,0};
 806
 807       for (Int_t iprong=0;iprong<2;iprong++){
 808         if(fReadMC && labprong[iprong]>=0) {
 809           mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 810           pdgProng[iprong]=mcprong->GetPdgCode();
 811         }
 812       }
 813
 814
 815       //no mass cut ditributions: ptbis
 816
 817       // fillthispi="hptpiSnoMcut_";
 818       // fillthispi+=ptbin;
 819
 820       // fillthisK="hptKSnoMcut_";
 821       // fillthisK+=ptbin;
 822
 823       // if ((TMath::Abs(pdgProng[0]) == 211 && TMath::Abs(pdgProng[1]) == 321)
 824       //     || (isSelectedPID==1 || isSelectedPID==3)){
 825       //        ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(0));
 826       //        ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(1));
 827       // }
 828
 829       // if ((TMath::Abs(pdgProng[0]) == 321 && TMath::Abs(pdgProng[1]) == 211)
 830       //     || (isSelectedPID==2 || isSelectedPID==3)){
 831       //        ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(0));
 832       //        ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(1));
 833       // }
 834
 835       //no mass cut ditributions: mass
 836       fillthis="hMassS_";
 837       fillthis+=ptbin;
 838
 839       if ((fReadMC && ((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421)
 840           || (!fReadMC && (isSelectedPID==1 || isSelectedPID==3))){//D0
 841         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 842       }
 843       else { //D0bar
 844         if(fReadMC || (!fReadMC && isSelectedPID > 1))
 845         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 846       }
 847
 848       //apply cut on invariant mass on the pair
 849       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 850
 851         if(fArray==1) cout<<"LS signal: ERROR"<<endl;
 852         for (Int_t iprong=0; iprong<2; iprong++){
 853           AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(iprong);
 854           if (fReadMC) labprong[iprong]=prong->GetLabel();
 855
 856           //cout<<"prong name = "<<prong->GetName()<<" label = "<<prong->GetLabel()<<endl;
 857           Int_t pdgprong=0;
 858           if(fReadMC && labprong[iprong]>=0) {
 859             mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 860             pdgprong=mcprong->GetPdgCode();
 861           }
 862
 863           Bool_t isPionHere[2]={(isSelectedPID==1 || isSelectedPID==3) ? kTRUE : kFALSE,(isSelectedPID==2 || isSelectedPID==3) ? kTRUE : kFALSE};
 864
 865           if(TMath::Abs(pdgprong)==211 || isPionHere[iprong]) {
 866             //cout<<"pi"<<endl;
 867
 868             fillthispi="hptpiS_";
 869             fillthispi+=ptbin;
 870             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(iprong));
 871             fillthispi="hd0piS_";
 872             fillthispi+=ptbin;
 873             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->Getd0Prong(iprong));
 874             if(recalcvtx) {
 875
 876               fillthispi="hd0vpiS_";
 877               fillthispi+=ptbin;
 878               ((TH1F*)listout->FindObject(fillthispi))->Fill(d0[iprong]);
 879             }
 880
 881           }
 882
 883           if(TMath::Abs(pdgprong)==321 || !isPionHere[iprong]) {
 884             //cout<<"kappa"<<endl;
 885
 886             fillthisK="hptKS_";
 887             fillthisK+=ptbin;
 888             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(iprong));
 889             fillthisK="hd0KS_";
 890             fillthisK+=ptbin;
 891             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->Getd0Prong(iprong));
 892             if (recalcvtx){
 893               fillthisK="hd0vKS_";
 894               fillthisK+=ptbin;
 895               ((TH1F*)listout->FindObject(fillthisK))->Fill(d0[iprong]);
 896             }
 897           }
 898
 899           fillthis="hcosthpointd0S_";
 900           fillthis+=ptbin;
 901           ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(iprong));
 902
 903         } //end loop on prongs
 904
 905         fillthis="hdcaS_";
 906         fillthis+=ptbin;
 907         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
 908
 909         fillthis="hcosthetapointS_";
 910         fillthis+=ptbin;
 911         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
 912
 913         fillthis="hcosthpointd0d0S_";
 914         fillthis+=ptbin;
 915         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
 916
 917         fillthis="hcosthetastarS_";
 918         fillthis+=ptbin;
 919         if ((fReadMC && ((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421)) ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
 920         else {
 921           if (fReadMC || isSelectedPID>1)((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
 922           if(isSelectedPID==1 || isSelectedPID==3)((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
 923         }
 924         fillthis="hd0d0S_";
 925         fillthis+=ptbin;
 926         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
 927
 928         if(recalcvtx){
 929           fillthis="hd0d0vS_";
 930           fillthis+=ptbin;
 931           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1]);
 932         }
 933
 934         fillthis="hdeclS_";
 935         fillthis+=ptbin;
 936         ((TH1F*)listout->FindObject(fillthis))->Fill(part->DecayLength());
 937
 938         fillthis="hnormdeclS_";
 939         fillthis+=ptbin;
 940         ((TH1F*)listout->FindObject(fillthis))->Fill(part->NormalizedDecayLength());
 941
 942         if(recalcvtx) {
 943           fillthis="hdeclvS_";
 944           fillthis+=ptbin;
 945           ((TH1F*)listout->FindObject(fillthis))->Fill(decl[0]);
 946
 947           fillthis="hnormdeclvS_";
 948           fillthis+=ptbin;
 949           ((TH1F*)listout->FindObject(fillthis))->Fill(decl[1]);
 950         }
 951       } //end mass cut
 952
 953     } else{ //Background or LS
 954       //if(!fReadMC){
 955       //cout<<"is background"<<endl;
 956
 957       //no mass cut distributions: mass, ptbis
 958       fillthis="hMassB_";
 959       fillthis+=ptbin;
 960
 961       if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3))) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 962       if (!fCutOnDistr || (fCutOnDistr && isSelected>1)) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 963
 964       // fillthis="hptB1prongnoMcut_";
 965       // fillthis+=ptbin;
 966
 967       // ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 968
 969       // fillthis="hptB2prongsnoMcut_";
 970       // fillthis+=ptbin;
 971       // ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 972       // ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
 973
 974       //apply cut on invariant mass on the pair
 975       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 976
 977
 978         AliAODTrack *prongg=(AliAODTrack*)part->GetDaughter(0);
 979         if(!prongg) {
 980           if(fDebug>2) cout<<"No daughter found";
 981           return;
 982         }
 983         else{
 984           if(fArray==1){
 985             if(prongg->Charge()==1) {
 986               //fTotPosPairs[ptbin]++;
 987               ((TH1F*)fDistr->FindObject("hpospair"))->Fill(ptbin);
 988             } else {
 989               //fTotNegPairs[ptbin]++;
 990               ((TH1F*)fDistr->FindObject("hnegpair"))->Fill(ptbin);
 991             }
 992           }
 993         }
 994
 995         //normalise pt distr to half afterwards
 996         fillthis="hptB_";
 997         fillthis+=ptbin;
 998         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 999         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
1000
1001         fillthis="hd0p0B_";
1002         fillthis+=ptbin;
1003         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(0));
1004         fillthis="hd0p1B_";
1005         fillthis+=ptbin;
1006         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(1));
1007         fillthis="hd0B_";
1008         fillthis+=ptbin;
1009         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(0));
1010         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(1));
1011
1012         if(fReadMC){
1013           Int_t pdgMother[2]={0,0};
1014           Double_t factor[2]={1,1};
1015
1016           for(Int_t iprong=0;iprong<2;iprong++){
1017             AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(iprong);
1018             lab=prong->GetLabel();
1019             if(lab>=0){
1020               AliAODMCParticle* mcprong=(AliAODMCParticle*)arrMC->At(lab);
1021               if(mcprong){
1022                 Int_t labmom=mcprong->GetMother();
1023                 if(labmom>=0){
1024                   AliAODMCParticle* mcmother=(AliAODMCParticle*)arrMC->At(labmom);
1025                   if(mcmother) pdgMother[iprong]=mcmother->GetPdgCode();
1026                 }
1027               }
1028             }
1029
1030             fillthis="hd0moresB_";
1031             fillthis+=ptbin;
1032
1033             if(TMath::Abs(pdgMother[iprong])==310 || TMath::Abs(pdgMother[iprong])==130 || TMath::Abs(pdgMother[iprong])==321){ //K^0_S, K^0_L, K^+-
1034               if(part->PtProng(iprong)<=1)factor[iprong]=1./.7;
1035               else factor[iprong]=1./.6;
1036               fNentries->Fill(11);
1037             }
1038
1039             if(TMath::Abs(pdgMother[iprong])==3122) { //Lambda
1040               factor[iprong]=1./0.25;
1041               fNentries->Fill(12);
1042             }
1043             fillthis="hd0moresB_";
1044             fillthis+=ptbin;
1045
1046             ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(iprong),factor[iprong]);
1047
1048             if(recalcvtx){
1049               fillthis="hd0vmoresB_";
1050               fillthis+=ptbin;
1051               ((TH1F*)listout->FindObject(fillthis))->Fill(d0[iprong],factor[iprong]);
1052             }
1053
1054           }
1055
1056           fillthis="hd0d0moresB_";
1057           fillthis+=ptbin;
1058           ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0(),factor[0]*factor[1]);
1059
1060           if(recalcvtx){
1061             fillthis="hd0d0vmoresB_";
1062             fillthis+=ptbin;
1063             ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1],factor[0]*factor[1]);
1064           }
1065           fillthis="hcosthetapointmoresB_";
1066           fillthis+=ptbin;
1067           ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),factor[0]*factor[1]);
1068         }
1069
1070         if(recalcvtx){
1071           fillthis="hd0vp0B_";
1072           fillthis+=ptbin;
1073           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]);
1074           fillthis="hd0vp1B_";
1075           fillthis+=ptbin;
1076           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[1]);
1077
1078           fillthis="hd0vB_";
1079           fillthis+=ptbin;
1080           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]);
1081           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[1]);
1082         }
1083
1084         fillthis="hcosthpointd0B_";
1085         fillthis+=ptbin;
1086         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(0));
1087         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(1));
1088
1089
1090         fillthis="hdcaB_";
1091         fillthis+=ptbin;
1092         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
1093
1094         fillthis="hcosthetastarB_";
1095         fillthis+=ptbin;
1096         if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3)))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
1097         if (!fCutOnDistr || (fCutOnDistr && isSelected>1))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
1098
1099         fillthis="hd0d0B_";
1100         fillthis+=ptbin;
1101         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
1102
1103         if(recalcvtx){
1104           fillthis="hd0d0vB_";
1105           fillthis+=ptbin;
1106           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1]);
1107         }
1108
1109         fillthis="hcosthetapointB_";
1110         fillthis+=ptbin;
1111         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
1112
1113         fillthis="hcosthpointd0d0B_";
1114         fillthis+=ptbin;
1115         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
1116
1117         fillthis="hdeclB_";
1118         fillthis+=ptbin;
1119         ((TH1F*)listout->FindObject(fillthis))->Fill(part->DecayLength());
1120
1121         fillthis="hnormdeclB_";
1122         fillthis+=ptbin;
1123         ((TH1F*)listout->FindObject(fillthis))->Fill(part->NormalizedDecayLength());
1124
1125         if(recalcvtx) {
1126
1127           fillthis="hdeclvB_";
1128           fillthis+=ptbin;
1129           ((TH1F*)listout->FindObject(fillthis))->Fill(decl[0]);
1130
1131           fillthis="hnormdeclvB_";
1132           fillthis+=ptbin;
1133           ((TH1F*)listout->FindObject(fillthis))->Fill(decl[1]);
1134
1135         }
1136       }//mass cut
1137     }//else (background)
1138   }
1139   return;
1140 }
1141 //____________________________________________________________________________
1142
1143 void AliAnalysisTaskSED0Mass::FillMassHists(AliAODEvent* aod,AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi* cuts, TList *listout){
1144   //
1145   // function used in UserExec to fill mass histograms:
1146   //
1147
1148
1149   //  Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1150
1151   Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate,aod); //selected
1152
1153   //cout<<"is selected = "<<isSelected<<endl;
1154
1155   //cout<<"check cuts = "<<endl;
1156   //cuts->PrintAll();
1157   if (!isSelected){
1158     //cout<<"Not Selected"<<endl;
1159     //cout<<"Rejected because "<<cuts->GetWhy()<<endl;
1160     return;
1161   }
1162
1163
1164   if(fDebug>2)  cout<<"Candidate selected"<<endl;
1165
1166   Double_t invmassD0 = part->InvMassD0(), invmassD0bar = part->InvMassD0bar();
1167   //printf("SELECTED\n");
1168   Int_t ptbin=cuts->PtBin(part->Pt());
1169
1170   AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
1171   if(!prong) {
1172     AliDebug(2,"No daughter found");
1173     return;
1174   }
1175   else{
1176     // if(prong->Charge()==1) {
1177     //   ((TH1F*)fDistr->FindObject("hpospair"))->Fill(fCuts->GetNPtBins()+ptbin);
1178     //   //fTotPosPairs[ptbin]++;
1179     // } else {
1180     //   ((TH1F*)fDistr->FindObject("hnegpair"))->Fill(fCuts->GetNPtBins()+ptbin);
1181     //   //fTotNegPairs[ptbin]++;
1182     // }
1183   }
1184
1185   // for(Int_t it=0;it<2;it++){
1186
1187   //    //request on spd points to be addes
1188   //   if(/*nSPD==2 && */part->Pt() > 5. && (TMath::Abs(invmassD0-mPDG)<0.01 || TMath::Abs(invmassD0bar-mPDG)<0.01)){
1189   //     FILE *f=fopen("4display.txt","a");
1190   //     fprintf(f,"pt: %f \n Rapidity: %f \t Period Number: %x \t Run Number: %d \t BunchCrossNumb: %d \t OrbitNumber: %d\n",part->Pt(),part->Y(421),aod->GetPeriodNumber(),aod->GetRunNumber(),aod->GetBunchCrossNumber(),aod->GetOrbitNumber());
1191   //     fclose(f);
1192   //     //printf("PrimVtx NContributors: %d \n Prongs Rel Angle: %f \n \n",ncont,relangle);
1193   //   }
1194   // }
1195
1196   TString fillthis="";
1197   Int_t pdgDgD0toKpi[2]={321,211};
1198   Int_t labD0=-1;
1199   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)
1200
1201   //count candidates selected by cuts
1202   fNentries->Fill(1);
1203   //count true D0 selected by cuts
1204   if (fReadMC && labD0>=0) fNentries->Fill(2);
1205
1206   if ((isSelected==1 || isSelected==3) && fFillOnlyD0D0bar<2) { //D0
1207     fillthis="histMass_";
1208     fillthis+=ptbin;
1209     //cout<<"Filling "<<fillthis<<endl;
1210
1211     //printf("Fill mass with D0");
1212     ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1213
1214     if(labD0>=0) {
1215       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1216
1217       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1218       Int_t pdgD0 = partD0->GetPdgCode();
1219       //cout<<"pdg = "<<pdgD0<<endl;
1220       if (pdgD0==421){ //D0
1221         //cout<<"Fill S with D0"<<endl;
1222         fillthis="histSgn_";
1223         fillthis+=ptbin;
1224         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1225         // if(TMath::Abs(invmassD0 - mPDG) < 0.027){
1226         //   fillthis="histSgn27_";
1227         //   fillthis+=ptbin;
1228         //   ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1229         // }
1230       } else{ //it was a D0bar
1231         fillthis="histRfl_";
1232         fillthis+=ptbin;
1233         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1234       }
1235     } else {//background
1236       fillthis="histBkg_";
1237       fillthis+=ptbin;
1238       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1239     }
1240
1241   }
1242   if (isSelected>1 && (fFillOnlyD0D0bar==0 || fFillOnlyD0D0bar==2)) { //D0bar
1243     fillthis="histMass_";
1244     fillthis+=ptbin;
1245     //printf("Fill mass with D0bar");
1246     ((TH1F*)listout->FindObject(fillthis))->Fill(invmassD0bar);
1247
1248     if(labD0>=0) {
1249       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1250       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1251       Int_t pdgD0 = partD0->GetPdgCode();
1252       //cout<<" pdg = "<<pdgD0<<endl;
1253       if (pdgD0==-421){ //D0bar
1254         fillthis="histSgn_";
1255         fillthis+=ptbin;
1256         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1257         // if (TMath::Abs(invmassD0bar - mPDG) < 0.027){
1258         //   fillthis="histSgn27_";
1259         //   fillthis+=ptbin;
1260         //   ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1261         // }
1262
1263
1264       } else{
1265         fillthis="histRfl_";
1266         fillthis+=ptbin;
1267         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1268       }
1269     } else {//background or LS
1270       fillthis="histBkg_";
1271       fillthis+=ptbin;
1272       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1273     }
1274   }
1275
1276   return;
1277 }
1278
1279 //__________________________________________________________________________
1280 AliAODVertex* AliAnalysisTaskSED0Mass::GetPrimaryVtxSkipped(AliAODEvent *aodev,AliAODRecoDecayHF2Prong *d){
1281   //Calculate the primary vertex w/o the daughter tracks of the candidate
1282
1283   Int_t skipped[2];
1284   Int_t nTrksToSkip=2;
1285   AliAODTrack *dgTrack = (AliAODTrack*)d->GetDaughter(0);
1286   if(!dgTrack){
1287     AliDebug(2,"no daughter found!");
1288     return 0x0;
1289   }
1290   skipped[0]=dgTrack->GetID();
1291   dgTrack = (AliAODTrack*)d->GetDaughter(1);
1292   if(!dgTrack){
1293     AliDebug(2,"no daughter found!");
1294     return 0x0;
1295   }
1296   skipped[1]=dgTrack->GetID();
1297
1298   AliESDVertex *vertexESD=0x0;
1299   AliAODVertex *vertexAOD=0x0;
1300   AliVertexerTracks *vertexer = new AliVertexerTracks(aodev->GetMagneticField());
1301
1302   //
1303   vertexer->SetSkipTracks(nTrksToSkip,skipped);
1304   vertexer->SetMinClusters(4);
1305   vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(aodev);
1306   if(!vertexESD) return vertexAOD;
1307   if(vertexESD->GetNContributors()<=0) {
1308     AliDebug(2,"vertexing failed");
1309     delete vertexESD; vertexESD=NULL;
1310     return vertexAOD;
1311   }
1312
1313   delete vertexer; vertexer=NULL;
1314
1315
1316   // convert to AliAODVertex
1317   Double_t pos[3],cov[6],chi2perNDF;
1318   vertexESD->GetXYZ(pos); // position
1319   vertexESD->GetCovMatrix(cov); //covariance matrix
1320   chi2perNDF = vertexESD->GetChi2toNDF();
1321   delete vertexESD; vertexESD=NULL;
1322
1323   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1324   return vertexAOD;
1325
1326 }
1327
1328
1329 //________________________________________________________________________
1330 void AliAnalysisTaskSED0Mass::Terminate(Option_t */*option*/)
1331 {
1332   // Terminate analysis
1333   //
1334   if(fDebug > 1) printf("AnalysisTaskSED0Mass: Terminate() \n");
1335
1336
1337   fOutputMass = dynamic_cast<TList*> (GetOutputData(1));
1338   if (!fOutputMass) {
1339     printf("ERROR: fOutputMass not available\n");
1340     return;
1341   }
1342   fDistr = dynamic_cast<TList*> (GetOutputData(2));
1343   if (!fDistr) {
1344     printf("ERROR: fDistr not available\n");
1345     return;
1346   }
1347
1348   fNentries = dynamic_cast<TH1F*>(GetOutputData(3));
1349
1350   if(!fNentries){
1351     printf("ERROR: fNEntries not available\n");
1352     return;
1353   }
1354   fCuts = dynamic_cast<AliRDHFCutsD0toKpi*>(GetOutputData(4));
1355   if(!fCuts){
1356     printf("ERROR: fCuts not available\n");
1357     return;
1358   }
1359   fCounter = dynamic_cast<AliNormalizationCounter*>(GetOutputData(5));
1360   if (!fCounter) {
1361     printf("ERROR: fCounter not available\n");
1362     return;
1363   }
1364   Int_t nptbins=fCuts->GetNPtBins();
1365   for(Int_t ipt=0;ipt<nptbins;ipt++){
1366
1367     if(fArray==1){
1368       fLsNormalization = 2.*TMath::Sqrt(((TH1F*)fDistr->FindObject("hpospair"))->Integral(nptbins+ipt+1,nptbins+ipt+2)*((TH1F*)fDistr->FindObject("hnegpair"))->Integral(nptbins+ipt+1,nptbins+ipt+2)); //after cuts
1369
1370
1371       if(fLsNormalization>1e-6) {
1372
1373         TString massName="histMass_";
1374         massName+=ipt;
1375         ((TH1F*)fOutputMass->FindObject(massName))->Scale((1/fLsNormalization)*((TH1F*)fOutputMass->FindObject(massName))->GetEntries());
1376
1377       }
1378
1379
1380       fLsNormalization = 2.*TMath::Sqrt(((TH1F*)fDistr->FindObject("hpospair"))->Integral(ipt+1,ipt+2)*((TH1F*)fDistr->FindObject("hnegpair"))->Integral(ipt+1,ipt+2));
1381       //fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[4]*fTotNegPairs[4]);
1382
1383       if(fLsNormalization>1e-6) {
1384
1385         TString nameDistr="hptB_";
1386         nameDistr+=ipt;
1387         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1388         nameDistr="hdcaB_";
1389         nameDistr+=ipt;
1390         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1391         nameDistr="hcosthetastarB_";
1392         nameDistr+=ipt;
1393         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1394         nameDistr="hd0B_";
1395         nameDistr+=ipt;
1396         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1397         nameDistr="hd0d0B_";
1398         nameDistr+=ipt;
1399         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1400         nameDistr="hcosthetapointB_";
1401         nameDistr+=ipt;
1402         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1403         nameDistr="hcosthpointd0d0B_";
1404         nameDistr+=ipt;
1405         ((TH2F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH2F*)fDistr->FindObject(nameDistr))->GetEntries());
1406
1407       }
1408     }
1409   }
1410   TString cvname,cstname;
1411
1412   if (fArray==0){
1413     cvname="D0invmass";
1414     cstname="cstat0";
1415   } else {
1416     cvname="LSinvmass";
1417     cstname="cstat1";
1418   }
1419
1420   TCanvas *cMass=new TCanvas(cvname,cvname);
1421   cMass->cd();
1422   ((TH1F*)fOutputMass->FindObject("histMass_3"))->Draw();
1423
1424   TCanvas* cStat=new TCanvas(cstname,Form("Stat%s",fArray ? "LS" : "D0"));
1425   cStat->cd();
1426   cStat->SetGridy();
1427   fNentries->Draw("htext0");
1428
1429   // TCanvas *ccheck=new TCanvas(Form("cc%d",fArray),Form("cc%d",fArray));
1430   // ccheck->cd();
1431
1432   return;
1433 }
1434