PWG3/vertexingHF/AliAnalysisTaskSED0Mass.cxx

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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     namedistr="hdeclvS_";
 323     namedistr+=i;
 324     TH1F *hdeclengthvS = new TH1F(namedistr.Data(), "Decay Length distribution (vtx w/o tracks);Decay Length [cm]",200,0,0.6);
 325
 326     namedistr="hdeclvB_";
 327     namedistr+=i;
 328     TH1F *hdeclengthvB = new TH1F(namedistr.Data(), "Decay Length distribution (vtx w/o tracks);Decay Length [cm]",200,0,0.6);
 329
 330     namedistr="hnormdeclvS_";
 331     namedistr+=i;
 332     TH1F *hnormdeclengthvS = new TH1F(namedistr.Data(), "Normalized Decay Length distribution (vtx w/o tracks);Decay Length/Err ",200,0,10.);
 333
 334     namedistr="hnormdeclvB_";
 335     namedistr+=i;
 336     TH1F *hnormdeclengthvB = new TH1F(namedistr.Data(), "Normalized Decay Length distribution (vtx w/o tracks);Decay Length/Err ",200,0,10.);
 337
 338    //  costhetapoint
 339     namedistr="hcosthetapointS_";
 340     namedistr+=i;
 341     TH1F *hcosthetapointS = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 342     namedistr="hcosthetapointB_";
 343     namedistr+=i;
 344     TH1F *hcosthetapointB = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
 345
 346    //  costhetapoint vs d0 or d0d0
 347     namedistr="hcosthpointd0S_";
 348     namedistr+=i;
 349     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);
 350
 351     namedistr="hcosthpointd0B_";
 352     namedistr+=i;
 353     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);
 354
 355     namedistr="hcosthpointd0d0S_";
 356     namedistr+=i;
 357     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);
 358     namedistr="hcosthpointd0d0B_";
 359     namedistr+=i;
 360     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);
 361
 362     fDistr->Add(hptpiS);
 363     fDistr->Add(hptKS);
 364     fDistr->Add(hptB);
 365
 366     fDistr->Add(hptpiSnoMcut);
 367     fDistr->Add(hptKSnoMcut);
 368     fDistr->Add(hptB1pnoMcut);
 369     fDistr->Add(hptB2pnoMcut);
 370
 371     fDistr->Add(hdcaS);
 372     fDistr->Add(hdcaB);
 373
 374     fDistr->Add(hd0piS);
 375     fDistr->Add(hd0KS);
 376     fDistr->Add(hd0B);
 377     fDistr->Add(hd0p0B);
 378     fDistr->Add(hd0p1B);
 379
 380     fDistr->Add(hd0vpiS);
 381     fDistr->Add(hd0vKS);
 382     fDistr->Add(hd0vB);
 383     fDistr->Add(hd0vp0B);
 384     fDistr->Add(hd0vp1B);
 385
 386     fDistr->Add(hd0d0S);
 387     fDistr->Add(hd0d0B);
 388
 389     fDistr->Add(hd0d0vS);
 390     fDistr->Add(hd0d0vB);
 391
 392     fDistr->Add(hcosthetastarS);
 393     fDistr->Add(hcosthetastarB);
 394
 395     fDistr->Add(hcosthetapointS);
 396     fDistr->Add(hcosthetapointB);
 397
 398     fDistr->Add(hdeclengthS);
 399     fDistr->Add(hdeclengthB);
 400
 401     fDistr->Add(hnormdeclengthS);
 402     fDistr->Add(hnormdeclengthB);
 403
 404     fDistr->Add(hdeclengthvS);
 405     fDistr->Add(hdeclengthvB);
 406
 407     fDistr->Add(hnormdeclengthvS);
 408     fDistr->Add(hnormdeclengthvB);
 409
 410     fDistr->Add(hcosthpointd0S);
 411     fDistr->Add(hcosthpointd0B);
 412
 413     fDistr->Add(hcosthpointd0d0S);
 414     fDistr->Add(hcosthpointd0d0B);
 415
 416
 417     //histograms of invariant mass distributions
 418
 419     TH1F* tmpMt = new TH1F(nameMass.Data(),"D^{0} invariant mass; M [GeV]; Entries",200,1.765,1.965);
 420     TH1F *tmpMl=(TH1F*)tmpMt->Clone();
 421     tmpMt->Sumw2();
 422     tmpMl->Sumw2();
 423
 424     //to compare with AliAnalysisTaskCharmFraction
 425     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);
 426     TH1F *tmpS27l=(TH1F*)tmpS27t->Clone();
 427     tmpS27t->Sumw2();
 428     tmpS27l->Sumw2();
 429
 430     //distribution w/o cuts
 431     //   TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,0.7,3.);
 432     TH1F* tmpMS = new TH1F(nameMassNocutsS.Data(),"D^{0} invariant mass; M [GeV]; Entries",300,1.56484,2.16484); //range (MD0-300MeV, mD0 + 300MeV)
 433     TH1F *tmpMB=(TH1F*)tmpMS->Clone();
 434     tmpMB->SetName(nameMassNocutsB.Data());
 435     tmpMS->Sumw2();
 436     tmpMB->Sumw2();
 437
 438     //MC signal and background
 439     TH1F* tmpSt = new TH1F(nameSgn.Data(), "D^{0} invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 440     TH1F *tmpSl=(TH1F*)tmpSt->Clone();
 441     tmpSt->Sumw2();
 442     tmpSl->Sumw2();
 443
 444     TH1F* tmpBt = new TH1F(nameBkg.Data(), "Background invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 445     TH1F *tmpBl=(TH1F*)tmpBt->Clone();
 446     tmpBt->Sumw2();
 447     tmpBl->Sumw2();
 448
 449     //Reflection: histo filled with D0Mass which pass the cut (also) as D0bar and with D0bar which pass (also) the cut as D0
 450     TH1F* tmpRt = new TH1F(nameRfl.Data(), "Reflected signal invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
 451     TH1F *tmpRl=(TH1F*)tmpRt->Clone();
 452     tmpRt->Sumw2();
 453     tmpRl->Sumw2();
 454   //  printf("Created histograms %s\t%s\t%s\t%s\n",tmpM->GetName(),tmpS->GetName(),tmpB->GetName(),tmpR->GetName());
 455
 456     fOutputMass->Add(tmpMt);
 457     fOutputMass->Add(tmpSt);
 458     fOutputMass->Add(tmpS27t);
 459     fOutputMass->Add(tmpBt);
 460     fOutputMass->Add(tmpRt);
 461
 462     fDistr->Add(tmpMS);
 463     fDistr->Add(tmpMB);
 464
 465
 466   }
 467
 468   //histograms for vertex checking and TOF checking
 469   TString checkname="hptGoodTr";
 470
 471   TH1F* hptGoodTr=new TH1F(checkname.Data(),"Pt distribution of 'good' tracks;p_{t}[GeV];Number",200,0.,8.);
 472   hptGoodTr->SetTitleOffset(1.3,"Y");
 473   checkname="hdistrGoodTr";
 474
 475   TH1F* hdistrGoodTr=new TH1F(checkname.Data(),"Distribution of number of good tracks per event;no.good-tracks/ev;Entries",31,0,31);
 476   hdistrGoodTr->SetTitleOffset(1.3,"Y");
 477
 478   checkname="hTOFsig";
 479   TH1F* hTOFsig=new TH1F(checkname.Data(),"Distribution of TOF signal;TOF time [ps];Entries", 100, -2.e3,40.e3);
 480
 481   checkname="hTOFtimeKaonHyptime";
 482   TH2F* hTOFtimeKaonHyptime=new TH2F(checkname.Data(),"TOFtime - timeHypothesisForKaon;p_{t}[GeV/c];TOFtime - timeHypothesisForKaon [ps]",200,0.,4.,1000,-20000.,20000.);
 483
 484  checkname="hTOFtime";
 485   TH1F* hTOFtime=new TH1F(checkname.Data(),"Distribution of TOF time Kaon;TOF time(Kaon) [ps];Entries", 1000, 0.,50000.);
 486
 487
 488   fChecks->Add(hptGoodTr);
 489   fChecks->Add(hdistrGoodTr);
 490   fChecks->Add(hTOFsig);
 491   fChecks->Add(hTOFtimeKaonHyptime);
 492   fChecks->Add(hTOFtime);
 493
 494   const char* nameoutput=GetOutputSlot(3)->GetContainer()->GetName();
 495
 496   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.);
 497
 498   fNentries->GetXaxis()->SetBinLabel(1,"nEventsAnal");
 499   fNentries->GetXaxis()->SetBinLabel(2,"nCandSel(Cuts)");
 500   fNentries->GetXaxis()->SetBinLabel(3,"nD0Selected");
 501   fNentries->GetXaxis()->SetBinLabel(4,"nEventsGoodVtx");
 502   fNentries->GetXaxis()->SetBinLabel(5,"nEventsGoodVtx+>2tracks");
 503   fNentries->GetXaxis()->SetBinLabel(6,"ptbin = -1");
 504   fNentries->GetXaxis()->SetBinLabel(7,"no daughter");
 505   fNentries->GetXaxis()->SetBinLabel(8,"nCandSel(Tr)");
 506
 507   fNentries->GetXaxis()->SetNdivisions(1,kFALSE);
 508
 509
 510   // Post the data
 511   PostData(1,fOutputMass);
 512   PostData(2,fDistr);
 513   PostData(3,fNentries);
 514   PostData(4,fChecks);
 515
 516   return;
 517 }
 518
 519 //________________________________________________________________________
 520 void AliAnalysisTaskSED0Mass::UserExec(Option_t */*option*/)
 521 {
 522   // Execute analysis for current event:
 523   // heavy flavor candidates association to MC truth
 524   //cout<<"I'm in UserExec"<<endl;
 525
 526
 527     //cuts order
 528     //       printf("    |M-MD0| [GeV]    < %f\n",fD0toKpiCuts[0]);
 529     //     printf("    dca    [cm]  < %f\n",fD0toKpiCuts[1]);
 530     //     printf("    cosThetaStar     < %f\n",fD0toKpiCuts[2]);
 531     //     printf("    pTK     [GeV/c]    > %f\n",fD0toKpiCuts[3]);
 532     //     printf("    pTpi    [GeV/c]    > %f\n",fD0toKpiCuts[4]);
 533     //     printf("    |d0K|  [cm]  < %f\n",fD0toKpiCuts[5]);
 534     //     printf("    |d0pi| [cm]  < %f\n",fD0toKpiCuts[6]);
 535     //     printf("    d0d0  [cm^2] < %f\n",fD0toKpiCuts[7]);
 536     //     printf("    cosThetaPoint    > %f\n",fD0toKpiCuts[8]);
 537
 538
 539   AliAODEvent *aod = dynamic_cast<AliAODEvent*> (InputEvent());
 540
 541   TString bname;
 542   if(fArray==0){ //D0 candidates
 543     // load D0->Kpi candidates
 544     //cout<<"D0 candidates"<<endl;
 545     bname="D0toKpi";
 546   } else { //LikeSign candidates
 547     // load like sign candidates
 548     //cout<<"LS candidates"<<endl;
 549     bname="LikeSign2Prong";
 550   }
 551
 552   TClonesArray *inputArray=0;
 553
 554   if(!aod && AODEvent() && IsStandardAOD()) {
 555     // In case there is an AOD handler writing a standard AOD, use the AOD
 556     // event in memory rather than the input (ESD) event.
 557     aod = dynamic_cast<AliAODEvent*> (AODEvent());
 558     // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
 559     // have to taken from the AOD event hold by the AliAODExtension
 560     AliAODHandler* aodHandler = (AliAODHandler*)
 561       ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 562
 563     if(aodHandler->GetExtensions()) {
 564       AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
 565       AliAODEvent* aodFromExt = ext->GetAOD();
 566       inputArray=(TClonesArray*)aodFromExt->GetList()->FindObject(bname.Data());
 567     }
 568   } else {
 569     inputArray=(TClonesArray*)aod->GetList()->FindObject(bname.Data());
 570   }
 571
 572
 573   if(!inputArray) {
 574     printf("AliAnalysisTaskSED0Mass::UserExec: input branch not found!\n");
 575     return;
 576   }
 577
 578
 579   TClonesArray *mcArray = 0;
 580   AliAODMCHeader *mcHeader = 0;
 581
 582   if(fReadMC) {
 583     // load MC particles
 584     mcArray = (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
 585     if(!mcArray) {
 586       printf("AliAnalysisTaskSED0Mass::UserExec: MC particles branch not found!\n");
 587       return;
 588     }
 589
 590     // load MC header
 591     mcHeader = (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
 592     if(!mcHeader) {
 593       printf("AliAnalysisTaskSED0Mass::UserExec: MC header branch not found!\n");
 594       return;
 595     }
 596   }
 597
 598   //printf("VERTEX Z %f %f\n",vtx1->GetZ(),mcHeader->GetVtxZ());
 599
 600   //histogram filled with 1 for every AOD
 601   fNentries->Fill(0);
 602
 603
 604
 605   // AOD primary vertex
 606   AliAODVertex *vtx1 = (AliAODVertex*)aod->GetPrimaryVertex();
 607
 608   Bool_t isGoodVtx=kFALSE;
 609
 610    //vtx1->Print();
 611   TString primTitle = vtx1->GetTitle();
 612   if(primTitle.Contains("VertexerTracks") && vtx1->GetNContributors()>0) {
 613     isGoodVtx=kTRUE;
 614     fNentries->Fill(3);
 615   }
 616
 617   //cout<<"Start checks"<<endl;
 618   Int_t ntracks=0,isGoodTrack=0;
 619
 620   if(aod) ntracks=aod->GetNTracks();
 621
 622   //cout<<"ntracks = "<<ntracks<<endl;
 623
 624   //loop on tracks in the event
 625   for (Int_t k=0;k<ntracks;k++){
 626     AliAODTrack* track=aod->GetTrack(k);
 627
 628     //check TOF
 629
 630     if(!(track->GetStatus()&AliESDtrack::kTPCrefit &&
 631          track->GetStatus()&AliESDtrack::kITSrefit &&
 632          track->GetTPCNcls() >=70 &&
 633          track->GetStatus()&AliESDtrack::kTOFpid &&
 634          track->GetStatus()&AliESDtrack::kTOFout &&
 635          track->GetStatus()&AliESDtrack::kTIME)) continue;
 636     AliAODPid *pid = track->GetDetPid();
 637     if(!pid)  {if (fDebug>1)cout<<"No AliAODPid found"<<endl; continue;}
 638
 639     Double_t times[5];
 640     pid->GetIntegratedTimes(times);
 641
 642     ((TH1F*)fChecks->FindObject("hTOFtime"))->Fill(times[3]);
 643     ((TH1F*)fChecks->FindObject("hTOFtimeKaonHyptime"))->Fill(track->P(),pid->GetTOFsignal()-times[3]); //3 is kaon
 644
 645     ((TH1F*)fChecks->FindObject("hTOFsig"))->Fill(pid->GetTOFsignal());
 646     if (pid->GetTOFsignal()< 0) ((TH1F*)fChecks->FindObject("hTOFsig"))->Fill(-1);
 647
 648
 649     //check clusters of the tracks
 650     Int_t nclsTot=0,nclsSPD=0;
 651
 652     for(Int_t l=0;l<6;l++) {
 653       if(TESTBIT(track->GetITSClusterMap(),l)) {
 654         nclsTot++; if(l<2) nclsSPD++;
 655       }
 656     }
 657
 658     if (track->Pt()>0.3 &&
 659         track->GetStatus()&AliESDtrack::kTPCrefit &&
 660         track->GetStatus()&AliESDtrack::kITSrefit &&
 661         nclsTot>3 &&
 662         nclsSPD>0) {//fill hist good tracks
 663
 664       ((TH1F*)fChecks->FindObject("hptGoodTr"))->Fill(track->Pt());
 665       isGoodTrack++;
 666     }
 667     //cout<<"isGoodTrack = "<<isGoodTrack<<endl;
 668     ((TH1F*)fChecks->FindObject("hdistrGoodTr"))->Fill(isGoodTrack);
 669   }
 670   //number of events with good vertex and at least 2 good tracks
 671   if (isGoodTrack>=2 && isGoodVtx) fNentries->Fill(4);
 672
 673
 674   // loop over candidates
 675   Int_t nInD0toKpi = inputArray->GetEntriesFast();
 676   if(fDebug>2) printf("Number of D0->Kpi: %d\n",nInD0toKpi);
 677
 678   for (Int_t iD0toKpi = 0; iD0toKpi < nInD0toKpi; iD0toKpi++) {
 679     //Int_t nPosPairs=0, nNegPairs=0;
 680     //cout<<"inside the loop"<<endl;
 681     AliAODRecoDecayHF2Prong *d = (AliAODRecoDecayHF2Prong*)inputArray->UncheckedAt(iD0toKpi);
 682
 683     //check daughters
 684     if(!(d->GetDaughter(0) || d->GetDaughter(1))) {
 685       AliDebug(1,"at least one daughter not found!");
 686       fNentries->Fill(6);
 687       return;
 688     }
 689
 690     Bool_t unsetvtx=kFALSE;
 691     if(!d->GetOwnPrimaryVtx()) {
 692       d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
 693       unsetvtx=kTRUE;
 694     }
 695
 696
 697     //check reco daughter in acceptance
 698     /*
 699     Double_t eta0=d->EtaProng(0);
 700     Double_t eta1=d->EtaProng(1);
 701     */
 702     if ( fCuts->IsInFiducialAcceptance(d->Pt(),d->Y(421)) ) {
 703       //if( TMath::Abs(eta0)<0.9 && TMath::Abs(eta1)<0.9 ){
 704        //apply cuts on tracks
 705       Int_t isSelected = fCuts->IsSelected(d,AliRDHFCuts::kTracks);
 706       if(((AliAODTrack*)d->GetDaughter(0))->GetTPCNcls() < 70 || ((AliAODTrack*)d->GetDaughter(1))->GetTPCNcls() < 70) isSelected=kFALSE;
 707       if (!isSelected) return;
 708       fNentries->Fill(7);
 709       if(fDebug>2) cout<<"tracks selected"<<endl;
 710
 711       FillVarHists(aod,d,mcArray,fCuts,fDistr);
 712       FillMassHists(d,mcArray,fCuts,fOutputMass);
 713     }
 714
 715     if(unsetvtx) d->UnsetOwnPrimaryVtx();
 716   } //end for prongs
 717
 718
 719   // Post the data
 720   PostData(1,fOutputMass);
 721   PostData(2,fDistr);
 722   PostData(3,fNentries);
 723   PostData(4,fChecks);
 724
 725   return;
 726 }
 727
 728 //____________________________________________________________________________
 729 void AliAnalysisTaskSED0Mass::FillVarHists(AliAODEvent* aod,AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi *cuts, TList *listout){
 730   //
 731   // function used in UserExec to fill variable histograms:
 732   //
 733
 734   //add distr here
 735   UInt_t pdgs[2];
 736
 737   Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
 738   pdgs[0]=211;
 739   pdgs[1]=321;
 740   Double_t minvD0 = part->InvMassD0();
 741   pdgs[1]=211;
 742   pdgs[0]=321;
 743   Double_t minvD0bar = part->InvMassD0bar();
 744   //cout<<"inside mass cut"<<endl;
 745
 746   Int_t pdgDgD0toKpi[2]={321,211};
 747   Int_t lab=-9999;
 748   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)
 749   //Double_t pt = d->Pt(); //mother pt
 750   Bool_t isSelected=kFALSE;
 751
 752
 753   if(fCutOnDistr){
 754     isSelected = cuts->IsSelected(part,AliRDHFCuts::kCandidate);
 755     if (!isSelected){
 756       //cout<<"Not Selected"<<endl;
 757       return;
 758     }
 759   }
 760
 761   Double_t invmasscut=0.03;
 762
 763   TString fillthispi="",fillthisK="",fillthis="";
 764
 765   Int_t ptbin=cuts->PtBin(part->Pt());
 766   if(ptbin==-1) {fNentries->Fill(5); return;} //out of bounds
 767
 768   //recalculate vertex
 769   AliAODVertex *vtxProp=0x0;
 770   vtxProp=GetPrimaryVtxSkipped(aod,part);
 771   Double_t dz1[2],dz2[2],covar1[3],covar2[3];//,d0xd0proper,errd0xd0proper;
 772   dz1[0]=-99; dz2[0]=-99;
 773   if(vtxProp) {
 774     part->SetOwnPrimaryVtx(vtxProp);
 775     //Bool_t unsetvtx=kTRUE;
 776     //Calculate d0 for daughter tracks with Vtx Skipped
 777     AliESDtrack *esdtrack1=new AliESDtrack((AliVTrack*)part->GetDaughter(0));
 778     AliESDtrack *esdtrack2=new AliESDtrack((AliVTrack*)part->GetDaughter(1));
 779     esdtrack1->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz1,covar1);
 780     esdtrack2->PropagateToDCA(vtxProp,aod->GetMagneticField(),1.,dz2,covar2);
 781     delete esdtrack1;
 782     delete esdtrack2;
 783   }
 784
 785   Double_t d0[2]={dz1[0],dz2[0]};
 786
 787   if(!fCutOnDistr || (fCutOnDistr && isSelected)){ //if no cuts or cuts passed
 788     //printf("\nif no cuts or cuts passed\n");
 789     if(lab>=0 && fReadMC){ //signal
 790
 791       //check pdg of the prongs
 792       AliAODTrack *prong0=(AliAODTrack*)part->GetDaughter(0);
 793       AliAODTrack *prong1=(AliAODTrack*)part->GetDaughter(1);
 794       if(!prong0 || !prong1) {
 795         return;
 796       }
 797       Int_t labprong[2];
 798       labprong[0]=prong0->GetLabel();
 799       labprong[1]=prong1->GetLabel();
 800       AliAODMCParticle *mcprong=0;
 801       Int_t pdgProng[2]={0,0};
 802
 803       for (Int_t iprong=0;iprong<2;iprong++){
 804         if(labprong[iprong]>=0)  mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 805         pdgProng[iprong]=mcprong->GetPdgCode();
 806       }
 807
 808       //no mass cut ditributions: ptbis
 809
 810       fillthispi="hptpiSnoMcut_";
 811       fillthispi+=ptbin;
 812
 813       fillthisK="hptKSnoMcut_";
 814       fillthisK+=ptbin;
 815
 816       if (TMath::Abs(pdgProng[0]) == 211 && TMath::Abs(pdgProng[1]) == 321){
 817         ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(0));
 818         ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(1));
 819       }else {
 820         if (TMath::Abs(pdgProng[0]) == 321 && TMath::Abs(pdgProng[1]) == 211){
 821           ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(0));
 822           ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(1));
 823         }
 824       }
 825
 826       //no mass cut ditributions: mass
 827       fillthis="hMassS_";
 828       fillthis+=ptbin;
 829
 830       if (((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421){//D0
 831         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 832       }
 833       else { //D0bar
 834         ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 835       }
 836
 837       //apply cut on invariant mass on the pair
 838       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 839
 840         if(fArray==1) cout<<"LS signal: ERROR"<<endl;
 841         for (Int_t iprong=0; iprong<2; iprong++){
 842           AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(iprong);
 843           labprong[iprong]=prong->GetLabel();
 844
 845           //cout<<"prong name = "<<prong->GetName()<<" label = "<<prong->GetLabel()<<endl;
 846           if(labprong[iprong]>=0)  mcprong= (AliAODMCParticle*)arrMC->At(labprong[iprong]);
 847           Int_t pdgprong=mcprong->GetPdgCode();
 848
 849           if(TMath::Abs(pdgprong)==211) {
 850             //cout<<"pi"<<endl;
 851
 852             fillthispi="hptpiS_";
 853             fillthispi+=ptbin;
 854             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->PtProng(iprong));
 855             fillthispi="hd0piS_";
 856             fillthispi+=ptbin;
 857             ((TH1F*)listout->FindObject(fillthispi))->Fill(part->Getd0Prong(iprong));
 858             if(d0[iprong] != -99) {
 859
 860               fillthispi="hd0vpiS_";
 861               fillthispi+=ptbin;
 862               ((TH1F*)listout->FindObject(fillthispi))->Fill(d0[iprong]);
 863             }
 864
 865           }
 866
 867           if(TMath::Abs(pdgprong)==321) {
 868             //cout<<"kappa"<<endl;
 869
 870             fillthisK="hptKS_";
 871             fillthisK+=ptbin;
 872             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->PtProng(iprong));
 873             fillthisK="hd0KS_";
 874             fillthisK+=ptbin;
 875             ((TH1F*)listout->FindObject(fillthisK))->Fill(part->Getd0Prong(iprong));
 876             if (d0[iprong] != -99){
 877               fillthisK="hd0vKS_";
 878               fillthisK+=ptbin;
 879               ((TH1F*)listout->FindObject(fillthisK))->Fill(d0[iprong]);
 880             }
 881           }
 882
 883           fillthis="hcosthpointd0S_";
 884           fillthis+=ptbin;
 885           ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(iprong));
 886
 887         } //end loop on prongs
 888
 889         fillthis="hdcaS_";
 890         fillthis+=ptbin;
 891         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
 892
 893         fillthis="hcosthetapointS_";
 894         fillthis+=ptbin;
 895         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
 896
 897         fillthis="hcosthpointd0d0S_";
 898         fillthis+=ptbin;
 899         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
 900
 901         fillthis="hcosthetastarS_";
 902         fillthis+=ptbin;
 903         if (((AliAODMCParticle*)arrMC->At(lab))->GetPdgCode() == 421)((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
 904         else ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
 905
 906         fillthis="hd0d0S_";
 907         fillthis+=ptbin;
 908         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
 909
 910         if(d0[0] != -99 && d0[1] != -99 ){
 911           fillthis="hd0d0vS_";
 912           fillthis+=ptbin;
 913           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1]);
 914         }
 915
 916         fillthis="hdeclS_";
 917         fillthis+=ptbin;
 918         ((TH1F*)listout->FindObject(fillthis))->Fill(part->DecayLength());
 919
 920         fillthis="hnormdeclS_";
 921         fillthis+=ptbin;
 922         ((TH1F*)listout->FindObject(fillthis))->Fill(part->NormalizedDecayLength());
 923
 924         if(vtxProp) {
 925           fillthis="hdeclvS_";
 926           fillthis+=ptbin;
 927           ((TH1F*)listout->FindObject(fillthis))->Fill(part->AliAODRecoDecay::DecayLength(vtxProp));
 928
 929           fillthis="hnormdeclvS_";
 930           fillthis+=ptbin;
 931           ((TH1F*)listout->FindObject(fillthis))->Fill(part->AliAODRecoDecay::NormalizedDecayLength(vtxProp));
 932         }
 933      } //end mass cut
 934
 935     } else{ //Background or LS
 936       //cout<<"is background"<<endl;
 937
 938       //no mass cut distributions: mass, ptbis
 939       fillthis="hMassB_";
 940       fillthis+=ptbin;
 941
 942       if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3))) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0);
 943       if (!fCutOnDistr || (fCutOnDistr && isSelected>1)) ((TH1F*)listout->FindObject(fillthis))->Fill(minvD0bar);
 944
 945       fillthis="hptB1prongnoMcut_";
 946       fillthis+=ptbin;
 947
 948       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 949
 950       fillthis="hptB2prongsnoMcut_";
 951       fillthis+=ptbin;
 952       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 953       ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
 954
 955       //apply cut on invariant mass on the pair
 956       if(TMath::Abs(minvD0-mPDG)<invmasscut || TMath::Abs(minvD0bar-mPDG)<invmasscut){
 957
 958
 959         AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
 960         if(!prong) {
 961           if(fDebug>2) cout<<"No daughter found";
 962           return;
 963         }
 964         else{
 965           if(prong->Charge()==1) {fTotPosPairs[ptbin]++;} else {fTotNegPairs[ptbin]++;}
 966         }
 967
 968         //normalise pt distr to half afterwards
 969         fillthis="hptB_";
 970         fillthis+=ptbin;
 971         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(0));
 972         ((TH1F*)listout->FindObject(fillthis))->Fill(part->PtProng(1));
 973
 974         fillthis="hd0p0B_";
 975         fillthis+=ptbin;
 976         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(0));
 977         fillthis="hd0p1B_";
 978         fillthis+=ptbin;
 979         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(1));
 980         fillthis="hd0B_";
 981         fillthis+=ptbin;
 982         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(0));
 983         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Getd0Prong(1));
 984
 985         fillthis="hd0vp0B_";
 986         fillthis+=ptbin;
 987         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]);
 988         fillthis="hd0vp1B_";
 989         fillthis+=ptbin;
 990         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[1]);
 991
 992         fillthis="hd0vB_";
 993         fillthis+=ptbin;
 994         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]);
 995         ((TH1F*)listout->FindObject(fillthis))->Fill(d0[1]);
 996
 997
 998         fillthis="hcosthpointd0B_";
 999         fillthis+=ptbin;
1000         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(0));
1001         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Getd0Prong(1));
1002
1003
1004         fillthis="hdcaB_";
1005         fillthis+=ptbin;
1006         ((TH1F*)listout->FindObject(fillthis))->Fill(part->GetDCA());
1007
1008         fillthis="hcosthetastarB_";
1009         fillthis+=ptbin;
1010         if (!fCutOnDistr || (fCutOnDistr && (isSelected==1 || isSelected==3)))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0());
1011         if (!fCutOnDistr || (fCutOnDistr && isSelected>1))((TH1F*)listout->FindObject(fillthis))->Fill(part->CosThetaStarD0bar());
1012
1013         fillthis="hd0d0B_";
1014         fillthis+=ptbin;
1015         ((TH1F*)listout->FindObject(fillthis))->Fill(part->Prodd0d0());
1016
1017         if(d0[0] != -99 && d0[1] != -99 ){
1018           fillthis="hd0d0vB_";
1019           fillthis+=ptbin;
1020           ((TH1F*)listout->FindObject(fillthis))->Fill(d0[0]*d0[1]);
1021         }
1022
1023         fillthis="hcosthetapointB_";
1024         fillthis+=ptbin;
1025         ((TH1F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle());
1026
1027         fillthis="hcosthpointd0d0B_";
1028         fillthis+=ptbin;
1029         ((TH2F*)listout->FindObject(fillthis))->Fill(part->CosPointingAngle(),part->Prodd0d0());
1030
1031         fillthis="hdeclB_";
1032         fillthis+=ptbin;
1033         ((TH1F*)listout->FindObject(fillthis))->Fill(part->DecayLength());
1034
1035         fillthis="hnormdeclB_";
1036         fillthis+=ptbin;
1037         ((TH1F*)listout->FindObject(fillthis))->Fill(part->NormalizedDecayLength());
1038
1039         if(vtxProp) {
1040           fillthis="hdeclvB_";
1041           fillthis+=ptbin;
1042           ((TH1F*)listout->FindObject(fillthis))->Fill(part->AliAODRecoDecay::DecayLength(vtxProp));
1043
1044           fillthis="hnormdeclvB_";
1045           fillthis+=ptbin;
1046           ((TH1F*)listout->FindObject(fillthis))->Fill(part->AliAODRecoDecay::NormalizedDecayLength(vtxProp));
1047         }
1048      }//mass cut
1049     }//else (background)
1050   }
1051   return;
1052 }
1053 //____________________________________________________________________________
1054
1055 void AliAnalysisTaskSED0Mass::FillMassHists(AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliRDHFCutsD0toKpi* cuts, TList *listout){
1056   //
1057   // function used in UserExec to fill mass histograms:
1058   //
1059
1060
1061   Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
1062
1063   Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1064   //cout<<"is selected = "<<isSelected<<endl;
1065
1066   //cout<<"check cuts = "<<endl;
1067   //cuts->PrintAll();
1068   if (!isSelected){
1069     //cout<<"Not Selected"<<endl;
1070     return;
1071   }
1072
1073   if(fDebug>2)  cout<<"Candidate selected"<<endl;
1074
1075   Double_t invmassD0 = part->InvMassD0(), invmassD0bar = part->InvMassD0bar();
1076   //printf("SELECTED\n");
1077   Int_t ptbin=cuts->PtBin(part->Pt());
1078
1079   AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
1080   if(!prong) {
1081     AliDebug(2,"No daughter found");
1082     return;
1083   }
1084   else{
1085     if(prong->Charge()==1) {fTotPosPairs[ptbin]++;} else {fTotNegPairs[ptbin]++;}
1086   }
1087
1088   TString fillthis="";
1089   Int_t pdgDgD0toKpi[2]={321,211};
1090   Int_t labD0=-1;
1091   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)
1092
1093   //count candidates selected by cuts
1094   fNentries->Fill(1);
1095   //count true D0 selected by cuts
1096   if (fReadMC && labD0>=0) fNentries->Fill(2);
1097   //PostData(3,fNentries);
1098
1099   if (isSelected==1 || isSelected==3) { //D0
1100     fillthis="histMass_";
1101     fillthis+=ptbin;
1102     //cout<<"Filling "<<fillthis<<endl;
1103
1104     //printf("Fill mass with D0");
1105     ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1106
1107     if(labD0>=0) {
1108       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1109
1110       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1111       Int_t pdgD0 = partD0->GetPdgCode();
1112       //cout<<"pdg = "<<pdgD0<<endl;
1113       if (pdgD0==421){ //D0
1114         //cout<<"Fill S with D0"<<endl;
1115         fillthis="histSgn_";
1116         fillthis+=ptbin;
1117         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1118         if(TMath::Abs(invmassD0 - mPDG) < 0.027){
1119           fillthis="histSgn27_";
1120           fillthis+=ptbin;
1121           ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1122         }
1123       } else{ //it was a D0bar
1124         fillthis="histRfl_";
1125         fillthis+=ptbin;
1126         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1127       }
1128     } else {//background
1129       fillthis="histBkg_";
1130       fillthis+=ptbin;
1131       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
1132     }
1133
1134   }
1135   if (isSelected>1) { //D0bar
1136     fillthis="histMass_";
1137     fillthis+=ptbin;
1138     //printf("Fill mass with D0bar");
1139     ((TH1F*)listout->FindObject(fillthis))->Fill(invmassD0bar);
1140
1141     if(labD0>=0) {
1142       if(fArray==1) cout<<"LS signal ERROR"<<endl;
1143       AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
1144       Int_t pdgD0 = partD0->GetPdgCode();
1145       //cout<<" pdg = "<<pdgD0<<endl;
1146       if (pdgD0==-421){ //D0bar
1147         fillthis="histSgn_";
1148         fillthis+=ptbin;
1149         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1150         if (TMath::Abs(invmassD0bar - mPDG) < 0.027){
1151           fillthis="histSgn27_";
1152           fillthis+=ptbin;
1153           ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1154         }
1155
1156
1157       } else{
1158         fillthis="histRfl_";
1159         fillthis+=ptbin;
1160         ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1161       }
1162     } else {//background or LS
1163       fillthis="histBkg_";
1164       fillthis+=ptbin;
1165       ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
1166     }
1167   }
1168
1169   return;
1170 }
1171
1172 //__________________________________________________________________________
1173 AliAODVertex* AliAnalysisTaskSED0Mass::GetPrimaryVtxSkipped(AliAODEvent *aodev,AliAODRecoDecayHF2Prong *d){
1174   //Calculate the primary vertex w/o the daughter tracks of the candidate
1175
1176   AliESDVertex *vertexESD=0x0;
1177   AliAODVertex *vertexAOD=0x0;
1178   AliVertexerTracks *vertexer = new AliVertexerTracks(aodev->GetMagneticField());
1179
1180   Int_t skipped[2];
1181   Int_t nTrksToSkip=2;
1182   AliAODTrack *dgTrack = (AliAODTrack*)d->GetDaughter(0);
1183   if(!dgTrack){
1184     AliDebug(2,"no daughter found!");
1185     return 0x0;
1186   }
1187   skipped[0]=dgTrack->GetID();
1188   dgTrack = (AliAODTrack*)d->GetDaughter(1);
1189   if(!dgTrack){
1190     AliDebug(2,"no daughter found!");
1191     return 0x0;
1192   }
1193   skipped[1]=dgTrack->GetID();
1194
1195
1196   //
1197   vertexer->SetSkipTracks(nTrksToSkip,skipped);
1198   vertexer->SetMinClusters(4);
1199   vertexESD = (AliESDVertex*)vertexer->FindPrimaryVertex(aodev);
1200   if(!vertexESD) return vertexAOD;
1201   if(vertexESD->GetNContributors()<=0) {
1202     AliDebug(2,"vertexing failed");
1203     delete vertexESD; vertexESD=NULL;
1204     return vertexAOD;
1205   }
1206
1207   delete vertexer; vertexer=NULL;
1208
1209
1210   // convert to AliAODVertex
1211   Double_t pos[3],cov[6],chi2perNDF;
1212   vertexESD->GetXYZ(pos); // position
1213   vertexESD->GetCovMatrix(cov); //covariance matrix
1214   chi2perNDF = vertexESD->GetChi2toNDF();
1215   delete vertexESD; vertexESD=NULL;
1216
1217   vertexAOD = new AliAODVertex(pos,cov,chi2perNDF);
1218   return vertexAOD;
1219
1220 }
1221
1222
1223 //________________________________________________________________________
1224 void AliAnalysisTaskSED0Mass::Terminate(Option_t */*option*/)
1225 {
1226   // Terminate analysis
1227   //
1228   if(fDebug > 1) printf("AnalysisTaskSED0Mass: Terminate() \n");
1229
1230
1231   fOutputMass = dynamic_cast<TList*> (GetOutputData(1));
1232   if (!fOutputMass) {
1233     printf("ERROR: fOutputMass not available\n");
1234     return;
1235   }
1236   fDistr = dynamic_cast<TList*> (GetOutputData(2));
1237   if (!fDistr) {
1238     printf("ERROR: fDistr not available\n");
1239     return;
1240   }
1241
1242   fNentries = dynamic_cast<TH1F*>(GetOutputData(3));
1243
1244   if(!fNentries){
1245     printf("ERROR: fNEntries not available\n");
1246     return;
1247   }
1248
1249   fChecks = dynamic_cast<TList*> (GetOutputData(4));
1250   if (!fChecks) {
1251     printf("ERROR: fChecks not available\n");
1252     return;
1253   }
1254
1255
1256   for(Int_t ipt=0;ipt<5;ipt++){ //change 5 in GetNPtBins when sure it is written and check
1257
1258
1259     if(fArray==1){
1260       fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[ipt]*fTotNegPairs[ipt]);
1261
1262
1263       if(fLsNormalization>1e-6) {
1264
1265         TString massName="histMass_";
1266         massName+=ipt;
1267         ((TH1F*)fOutputMass->FindObject(massName))->Scale((1/fLsNormalization)*((TH1F*)fOutputMass->FindObject(massName))->GetEntries());
1268
1269       }
1270
1271
1272       fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[4]*fTotNegPairs[4]);
1273
1274       if(fLsNormalization>1e-6) {
1275
1276         TString nameDistr="hptB_";
1277         nameDistr+=ipt;
1278         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1279         nameDistr="hdcaB_";
1280         nameDistr+=ipt;
1281         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1282         nameDistr="hcosthetastarB_";
1283         nameDistr+=ipt;
1284         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1285         nameDistr="hd0B_";
1286         nameDistr+=ipt;
1287         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1288         nameDistr="hd0d0B_";
1289         nameDistr+=ipt;
1290         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1291         nameDistr="hcosthetapointB_";
1292         nameDistr+=ipt;
1293         ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
1294         nameDistr="hcosthpointd0d0B_";
1295         nameDistr+=ipt;
1296         ((TH2F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH2F*)fDistr->FindObject(nameDistr))->GetEntries());
1297
1298       }
1299     }
1300   }
1301   TString cvname,cstname;
1302
1303   if (fArray==0){
1304     cvname="D0invmass";
1305     cstname="cstat0";
1306   } else {
1307     cvname="LSinvmass";
1308     cstname="cstat1";
1309   }
1310
1311   TCanvas *cMass=new TCanvas(cvname,cvname);
1312   cMass->cd();
1313   ((TH1F*)fOutputMass->FindObject("histMass_3"))->Draw();
1314
1315   TCanvas* cStat=new TCanvas(cstname,Form("Stat%s",fArray ? "LS" : "D0"));
1316   cStat->cd();
1317   cStat->SetGridy();
1318   fNentries->Draw("htext0");
1319
1320   // TCanvas *ccheck=new TCanvas(Form("cc%d",fArray),Form("cc%d",fArray));
1321   // ccheck->cd();
1322
1323   return;
1324 }
1325