PWGHF/correlationHF/AliAnalysisTaskDStarCorrelations.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15 //
  16 //
  17 //             Base class for DStar - Hadron Correlations Analysis
  18 //
  19 //-----------------------------------------------------------------------
  20 //
  21 //
  22 //                                                 Author S.Bjelogrlic
  23 //                         Utrecht University
  24 //                      sandro.bjelogrlic@cern.ch
  25 //
  26 //-----------------------------------------------------------------------
  27
  28 /* $Id$ */
  29
  30 //#include <TDatabasePDG.h>
  31 #include <TParticle.h>
  32 #include <TVector3.h>
  33 #include <TChain.h>
  34 #include "TROOT.h"
  35
  36 #include "AliAnalysisTaskDStarCorrelations.h"
  37 #include "AliRDHFCutsDStartoKpipi.h"
  38 #include "AliHFAssociatedTrackCuts.h"
  39 #include "AliAODRecoDecay.h"
  40 #include "AliAODRecoCascadeHF.h"
  41 #include "AliAODRecoDecayHF2Prong.h"
  42 #include "AliAODPidHF.h"
  43 #include "AliVParticle.h"
  44 #include "AliAnalysisManager.h"
  45 #include "AliAODInputHandler.h"
  46 #include "AliAODHandler.h"
  47 #include "AliESDtrack.h"
  48 #include "AliAODMCParticle.h"
  49 #include "AliNormalizationCounter.h"
  50 #include "AliReducedParticle.h"
  51 #include "AliHFCorrelator.h"
  52
  53 using std::cout;
  54 using std::endl;
  55
  56
  57 ClassImp(AliAnalysisTaskDStarCorrelations)
  58
  59
  60 //__________________________________________________________________________
  61 AliAnalysisTaskDStarCorrelations::AliAnalysisTaskDStarCorrelations() :
  62 AliAnalysisTaskSE(),
  63 fhandler(0x0),
  64 //fPoolMgr(0x0),
  65 fmcArray(0x0),
  66 fCounter(0x0),
  67 fCorrelator(0x0),
  68 fselect(0),
  69 fmontecarlo(kFALSE),
  70 fmixing(kFALSE),
  71 fSystem(kFALSE),
  72 fEvents(0),
  73 fDebug(0),
  74 fDisplacement(0),
  75
  76 fOutput(0x0),
  77 fCuts(0),
  78 fCuts2(0)
  79 {
  80 // default constructor
  81 }
  82
  83 //__________________________________________________________________________
  84 AliAnalysisTaskDStarCorrelations::AliAnalysisTaskDStarCorrelations(const Char_t* name,AliRDHFCutsDStartoKpipi* cuts, AliHFAssociatedTrackCuts *AsscCuts) :
  85 AliAnalysisTaskSE(name),
  86
  87 fhandler(0x0),
  88 fmcArray(0x0),
  89 fCounter(0x0),
  90 fCorrelator(0x0),
  91 fselect(0),
  92 fmontecarlo(kFALSE),
  93 fmixing(kFALSE),
  94 fSystem(kFALSE),
  95 fEvents(0),
  96 fDebug(0),
  97 fDisplacement(0),
  98
  99 fOutput(0x0),
 100 fCuts(0),
 101 fCuts2(AsscCuts)
 102 {
 103         fCuts=cuts;
 104         Info("AliAnalysisTaskDStarCorrelations","Calling Constructor");
 105         DefineInput(0, TChain::Class());
 106         DefineOutput(1,TList::Class()); // histos from data
 107         DefineOutput(2,AliRDHFCutsDStartoKpipi::Class()); // my cuts
 108         DefineOutput(3,AliNormalizationCounter::Class());   // normalization
 109         DefineOutput(4,AliHFAssociatedTrackCuts::Class()); // my cuts
 110 }
 111
 112 //__________________________________________________________________________
 113
 114 AliAnalysisTaskDStarCorrelations::~AliAnalysisTaskDStarCorrelations() {
 115         //
 116         // destructor
 117         //
 118
 119         Info("AliAnalysisTaskDStarCorrelations","Calling Destructor");
 120
 121         if(fhandler) {delete fhandler; fhandler = 0;}
 122         //if(fPoolMgr) {delete fPoolMgr; fPoolMgr = 0;}
 123         if(fmcArray) {delete fmcArray; fmcArray = 0;}
 124         if(fCounter) {delete fCounter; fCounter = 0;}
 125         if(fCorrelator) {delete fCorrelator; fCorrelator = 0;}
 126         if(fOutput) {delete fOutput; fOutput = 0;}
 127         if(fCuts) {delete fCuts; fCuts = 0;}
 128         if(fCuts2) {delete fCuts2; fCuts2=0;}
 129
 130 }
 131
 132 //___________________________________________________________
 133 void AliAnalysisTaskDStarCorrelations::Init(){
 134         //
 135         // Initialization
 136         //
 137         if(fDebug > 1) printf("AliAnalysisTaskDStarCorrelations::Init() \n");
 138
 139         AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
 140
 141
 142
 143
 144         // Post the D* cuts
 145         PostData(2,copyfCuts);
 146
 147         // Post the hadron cuts
 148         PostData(4,fCuts2);
 149
 150
 151
 152         return;
 153 }
 154
 155
 156 //_________________________________________________
 157 void AliAnalysisTaskDStarCorrelations::UserCreateOutputObjects(){
 158         Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
 159
 160         //slot #1
 161         //OpenFile(0);
 162         fOutput = new TList();
 163         fOutput->SetOwner();
 164
 165         // define histograms
 166         DefineHistoForAnalysis();
 167         fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(3)->GetContainer()->GetName()));
 168         fCounter->Init();
 169
 170     Double_t Pi = TMath::Pi();
 171         fCorrelator = new AliHFCorrelator("Correlator",fCuts2,fSystem); // fCuts2 is the hadron cut object, fSystem to switch between pp or PbPb
 172         fCorrelator->SetDeltaPhiInterval((-0.5-1./32)*Pi,(1.5-1./32)*Pi); // set correct phi interval
 173         fCorrelator->SetEventMixing(fmixing); //set kFALSE/kTRUE for mixing Off/On
 174         fCorrelator->SetAssociatedParticleType(fselect); // set 1/2/3 for hadron/kaons/kzeros
 175         fCorrelator->SetApplyDisplacementCut(fDisplacement); //set kFALSE/kTRUE for using the displacement cut
 176         fCorrelator->SetUseMC(fmontecarlo);
 177         Bool_t pooldef = fCorrelator->DefineEventPool();
 178
 179         if(!pooldef) AliInfo("Warning:: Event pool not defined properly");
 180
 181
 182         PostData(1,fOutput); // set the outputs
 183         PostData(3,fCounter); // set the outputs
 184 }
 185 //_________________________________________________
 186 void AliAnalysisTaskDStarCorrelations::UserExec(Option_t *){
 187
 188
 189
 190         cout << " " << endl;
 191         cout << "=================================================================================" << endl;
 192         if(!fmixing){
 193         if(fselect==1) cout << "TASK::Correlation with hadrons on SE "<< endl;
 194         if(fselect==2) cout << "TASK::Correlation with kaons on SE "<< endl;
 195         if(fselect==3) cout << "TASK::Correlation with kzeros on SE "<< endl;
 196         }
 197         if(fmixing){
 198                 if(fselect==1) cout << "TASK::Correlation with hadrons on ME "<< endl;
 199                 if(fselect==2) cout << "TASK::Correlation with kaons on ME "<< endl;
 200                 if(fselect==3) cout << "TASK::Correlation with kzeros on ME "<< endl;
 201         }
 202         if (!fInputEvent) {
 203                 Error("UserExec","NO EVENT FOUND!");
 204                 return;
 205         }
 206
 207         AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
 208         if(!aodEvent){
 209           AliError("AOD event not found!");
 210           return;
 211         }
 212
 213         fCorrelator->SetAODEvent(aodEvent); // set the event to be processed
 214
 215         fEvents++; // event counter
 216         ((TH1D*)fOutput->FindObject("NofEvents"))->Fill(0);
 217         fmcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
 218
 219         if(fmontecarlo && !fmcArray){
 220           AliError("Array of MC particles not found");
 221           return;
 222         }
 223         Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
 224         if(!isEvSel) return;
 225         ((TH1D*)fOutput->FindObject("NofEvents"))->Fill(1);
 226         //
 227         Bool_t correlatorON = fCorrelator->Initialize(); //define the pool for mixing
 228         if(!correlatorON) {
 229                 AliInfo("AliHFCorrelator didn't initialize the pool correctly or processed a bad event");
 230                 return;
 231         }
 232         ((TH1D*)fOutput->FindObject("NofEvents"))->Fill(2);
 233
 234         if(fmontecarlo) fCorrelator->SetMCArray(fmcArray);
 235         // D* reconstruction
 236         TClonesArray *arrayDStartoD0pi=0;
 237
 238
 239         if(!aodEvent && AODEvent() && IsStandardAOD()) {
 240                 // In case there is an AOD handler writing a standard AOD, use the AOD
 241                 // event in memory rather than the input (ESD) event.
 242                 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
 243                 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
 244                 // have to taken from the AOD event hold by the AliAODExtension
 245                 AliAODHandler* aodHandler = (AliAODHandler*)
 246                 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 247                 if(aodHandler->GetExtensions()) {
 248                         AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
 249                         AliAODEvent *aodFromExt = ext->GetAOD();
 250                         arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
 251                 }
 252         } else {
 253                 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
 254         }
 255
 256         if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
 257
 258         // initialize variables you will need for the D*
 259
 260         Double_t ptDStar;//
 261         Double_t phiDStar;//
 262         Double_t etaDStar;//
 263         Bool_t isInPeak, isInSideBand, isDStarMCtag;
 264         Double_t invMassDZero;
 265         Double_t deltainvMDStar;
 266
 267
 268         Double_t mPDGD0=1.8648;//TDatabasePDG::Instance()->GetParticle(421)->Mass();
 269         Double_t mPDGDstar=2.01022;//TDatabasePDG::Instance()->GetParticle(413)->Mass();
 270
 271
 272         //MC tagging for DStar
 273         //D* and D0 prongs needed to MatchToMC method
 274         Int_t pdgDgDStartoD0pi[2]={421,211};
 275         Int_t pdgDgD0toKpi[2]={321,211};
 276
 277
 278         //loop on D* candidates
 279         for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
 280                 isInPeak = kFALSE;
 281                 isInSideBand = kFALSE;
 282                 isDStarMCtag = kFALSE;
 283                 ptDStar = -123.4;
 284                 phiDStar = -999;
 285                 etaDStar = -56.;
 286                 invMassDZero = - 999;
 287                 deltainvMDStar = -998;
 288
 289                 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
 290                 if(!dstarD0pi->GetSecondaryVtx()) continue;
 291                 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
 292                 if (!theD0particle) continue;
 293
 294
 295                 // track quality cuts
 296                 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
 297                 // region of interest + topological cuts + PID
 298                 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
 299                 //apply selections
 300                 if(!isTkSelected) continue;
 301                 if(!isSelected) continue;
 302                 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
 303                 Int_t mcLabelDStar = -999;
 304                 if(fmontecarlo){
 305                         // find associated MC particle for D* ->D0toKpi
 306                         mcLabelDStar = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,fmcArray,kFALSE);
 307                         if(mcLabelDStar>=0) isDStarMCtag = kTRUE;
 308                 }
 309
 310                 ptDStar = dstarD0pi->Pt();
 311                 phiDStar = dstarD0pi->Phi();
 312                 etaDStar = dstarD0pi->Eta();
 313
 314                 phiDStar = fCorrelator->SetCorrectPhiRange(phiDStar); // set the phi of the D meson in the correct range
 315
 316                 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
 317
 318                 Double_t dmDStarWindow =0.0019;// 0.0019 = 3 sigma
 319                 Double_t mD0Window=0.074;
 320
 321                 if (!fSystem){ // pp
 322                         if (ptbin==1)  mD0Window = 0.026; //0.5-1
 323                         if (ptbin==2)  mD0Window = 0.022; //1-2
 324                         if (ptbin==3)  mD0Window = 0.024; //2-3
 325                         if (ptbin==4)  mD0Window = 0.032;
 326                         if (ptbin==5)  mD0Window = 0.032;
 327                         if (ptbin==6)  mD0Window = 0.036;
 328                         if (ptbin==7)  mD0Window = 0.036;
 329                         if (ptbin==8)  mD0Window = 0.036;
 330                         if (ptbin==9)  mD0Window = 0.058;
 331                         if (ptbin==10) mD0Window = 0.058;
 332                         if (ptbin>10)  mD0Window = 0.074;
 333                 }
 334                 if(fSystem){// PbPb
 335                         if (ptbin==0)  mD0Window = 0.032; //1-1
 336                         if (ptbin==1)  mD0Window = 0.032; //2-3
 337                         if (ptbin==2)  mD0Window = 0.032; //3-4
 338                         if (ptbin==3)  mD0Window = 0.032; //4-5
 339                         if (ptbin==4)  mD0Window = 0.036; //5-6
 340                         if (ptbin==5)  mD0Window = 0.036; //6-8
 341                         if (ptbin==6)  mD0Window = 0.055; //8-12
 342                         if (ptbin==7)  mD0Window = 0.074; //12-16
 343                         if (ptbin==8)  mD0Window = 0.074; //16-24
 344                         if (ptbin==9)  mD0Window = 0.074; //24-35
 345                  }
 346
 347                 invMassDZero = dstarD0pi->InvMassD0();
 348                 ((TH2F*)fOutput->FindObject("D0InvMass"))->Fill(ptDStar,invMassDZero);
 349
 350                 deltainvMDStar = dstarD0pi->DeltaInvMass();
 351
 352
 353                 //good candidates
 354                 if (TMath::Abs(invMassDZero-mPDGD0)<mD0Window){
 355
 356                         ((TH2F*)fOutput->FindObject("DeltaInvMass"))->Fill(ptDStar,deltainvMDStar);
 357                         if(TMath::Abs(deltainvMDStar-(mPDGDstar-mPDGD0))<dmDStarWindow){ // is in DStar peak region?
 358
 359                                 ((TH1F*)fOutput->FindObject("RecoPtDStar"))->Fill(ptDStar);
 360                                 isInPeak = kTRUE;
 361                                 ((TH2F*)fOutput->FindObject("PhiEtaTrigger"))->Fill(phiDStar,etaDStar);
 362                         }
 363                 }// end if good candidates
 364
 365                 //sidebands
 366                 if (TMath::Abs(invMassDZero-mPDGD0)>1.3*mD0Window && TMath::Abs(invMassDZero-mPDGD0)<4.*mD0Window ){
 367                         ((TH2F*)fOutput->FindObject("bkgDeltaInvMass"))->Fill(ptDStar,deltainvMDStar);
 368                         ((TH2F*)fOutput->FindObject("D0InvMassinSB"))->Fill(ptDStar,invMassDZero);
 369
 370                         if(TMath::Abs(deltainvMDStar-(mPDGDstar-mPDGD0))<dmDStarWindow){ // is in DStar peak region?
 371                                 ((TH1F*)fOutput->FindObject("RecoPtBkg"))->Fill(ptDStar);
 372                                 isInSideBand = kTRUE;
 373                                 ((TH2F*)fOutput->FindObject("PhiEtaSideBand"))->Fill(phiDStar,etaDStar);
 374                         }
 375
 376                 }//end if sidebands
 377                 // getting the number of triggers in the MCtag D* case
 378
 379
 380         if(fmontecarlo && isDStarMCtag) ((TH1F*)fOutput->FindObject("MCtagPtDStar"))->Fill(ptDStar);
 381
 382
 383                 if(!isInPeak && !isInSideBand) continue; // skip if it is not side band or peak event - SAVE CPU TIME
 384
 385
 386             fCorrelator->SetTriggerParticleProperties(ptDStar,phiDStar,etaDStar); // pass to the object the necessary trigger part parameters
 387
 388                 Short_t daughtercharge = ((AliAODTrack*)theD0particle->GetDaughter(0))->Charge();
 389                 fCorrelator->SetTriggerParticleDaughterCharge(daughtercharge);
 390
 391
 392                 Int_t trackiddaugh0 = ((AliAODTrack*)theD0particle->GetDaughter(0))->GetID();
 393                 Int_t trackiddaugh1 = ((AliAODTrack*)theD0particle->GetDaughter(1))->GetID();
 394                 Int_t trackidsoftPi = ((AliAODTrack*)dstarD0pi->GetBachelor())->GetID();
 395
 396                 Bool_t execPool = fCorrelator->ProcessEventPool();
 397                 if(fmixing && !execPool) {
 398                         AliInfo("Mixed event analysis: pool is not ready");
 399                         continue;
 400                 }
 401
 402                 Int_t NofEventsinPool = 1;
 403                 if(fmixing) NofEventsinPool = fCorrelator->GetNofEventsInPool();
 404
 405                 for (Int_t jMix =0; jMix < NofEventsinPool; jMix++){// loop on events in the pool; if it is SE analysis, stops at one
 406
 407                         Bool_t analyzetracks = fCorrelator->ProcessAssociatedTracks(jMix);
 408
 409                         if(!analyzetracks) {
 410                                 AliInfo("AliHFCorrelator::Cannot process the track array");
 411                                 continue;
 412                         }
 413
 414
 415                         Int_t NofTracks = fCorrelator->GetNofTracks();
 416
 417                         for(Int_t iTrack = 0; iTrack<NofTracks; iTrack++){ // looping on track candidates
 418
 419                                 Bool_t runcorrelation = fCorrelator->Correlate(iTrack);
 420                                 if(!runcorrelation) continue;
 421
 422                                 Double_t DeltaPhi = fCorrelator->GetDeltaPhi();
 423                                 Double_t DeltaEta = fCorrelator->GetDeltaEta();
 424
 425                                 AliReducedParticle * hadron = fCorrelator->GetAssociatedParticle();
 426
 427                                 Double_t ptHad = hadron->Pt();
 428                                 Double_t phiHad = hadron->Phi();
 429                                 Double_t etaHad = hadron->Eta();
 430                                 Double_t label = hadron->GetLabel();
 431                                 Double_t trackid = hadron->GetID();
 432
 433                                 phiHad = fCorrelator->SetCorrectPhiRange(phiHad);
 434
 435                                 if(!fmixing){ // skip D* Daughetrs
 436                                         if(trackid == trackiddaugh0) continue;
 437                                         if(trackid == trackiddaugh1) continue;
 438                                         if(trackid == trackidsoftPi) continue;
 439                                 }
 440
 441                                 // from here on it is up to the user to decide what object to fill
 442
 443                                 if(fmontecarlo && isDStarMCtag){ // check correlations of MC tagged DStars in MonteCarlo
 444
 445                                         Int_t PartSource = fCuts2->IsMCpartFromHF(label,fmcArray); // check source of associated particle (hadron/kaon/K0)
 446
 447                                         FillMCTagCorrelations(ptDStar,DeltaPhi,DeltaEta,ptHad,PartSource);
 448
 449                                 }
 450
 451                                 if(isInPeak)  {
 452
 453                                         if(fselect==1) ((TH3D*)fOutput->FindObject("DPhiDStarHadron"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 454                                         if(fselect==2) ((TH3D*)fOutput->FindObject("DPhiDStarKaon"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 455                                         if(fselect==3) ((TH3D*)fOutput->FindObject("DPhiDStarKZero"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 456                                     ((TH2F*)fOutput->FindObject("PhiEtaPart"))->Fill(phiHad,etaHad);
 457                                         //counterPeak++; // count tracks per peak per event
 458
 459                                 }
 460
 461                                 if(isInSideBand) {
 462
 463                                         if(fselect==1) ((TH3D*)fOutput->FindObject("bkgDPhiDStarHadron"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 464                                         if(fselect==2) ((TH3D*)fOutput->FindObject("bkgDPhiDStarKaon"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 465                                         if(fselect==3) ((TH3D*)fOutput->FindObject("bkgDPhiDStarKZero"))->Fill(DeltaPhi,ptDStar,DeltaEta);
 466
 467
 468
 469                                         //counterSB++;
 470                                 }
 471
 472
 473                         } // end loop on track candidates
 474                 } // end loop on events in the pool
 475
 476         }// end loop on D* candidates
 477         Bool_t updated = fCorrelator->PoolUpdate();
 478         if(!updated) AliInfo("Pool was not updated");
 479
 480                 //cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> END OF THE EVENT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<" << endl;
 481
 482
 483
 484 } //end the exec
 485
 486 //________________________________________ terminate ___________________________
 487 void AliAnalysisTaskDStarCorrelations::Terminate(Option_t*)
 488 {
 489         // The Terminate() function is the last function to be called during
 490         // a query. It always runs on the client, it can be used to present
 491         // the results graphically or save the results to file.
 492
 493         AliAnalysisTaskSE::Terminate();
 494
 495         fOutput = dynamic_cast<TList*> (GetOutputData(1));
 496         if (!fOutput) {
 497                 printf("ERROR: fOutput not available\n");
 498                 return;
 499         }
 500
 501         return;
 502 }
 503
 504
 505 //_____________________________________________________
 506 void AliAnalysisTaskDStarCorrelations::DefineHistoForAnalysis(){
 507
 508         Double_t Pi = TMath::Pi();
 509         Int_t nbinscorr = 32;
 510         Double_t lowcorrbin = -0.5*Pi - Pi/32; // shift the bin by half the width so that at 0 is it the bin center
 511         Double_t upcorrbin = 1.5*Pi - Pi/32;
 512
 513         // ========================= histograms for both Data and MonteCarlo
 514
 515
 516         TH1D * NofEvents = new TH1D("NofEvents","NofEvents",3,0,3);
 517         fOutput->Add(NofEvents);
 518
 519         TH2F *D0InvMass = new TH2F("D0InvMass","K#pi invariant mass distribution",300,0,30,1500,0.5,3.5);
 520         fOutput->Add(D0InvMass);
 521
 522         TH2F *D0InvMassinSB = new TH2F("D0InvMassinSB","K#pi invariant mass distribution in sb",300,0,30,1500,0.5,3.5);
 523         fOutput->Add(D0InvMassinSB);
 524
 525         TH2F *DeltaInvMass = new TH2F("DeltaInvMass","K#pi#pi - K#pi invariant mass distribution",300,0,30,750,0.1,0.2);
 526         fOutput->Add(DeltaInvMass);
 527
 528         TH2F *bkgDeltaInvMass = new TH2F("bkgDeltaInvMass","K#pi#pi - K#pi invariant mass distribution",300,0,30,750,0.1,0.2);
 529         fOutput->Add(bkgDeltaInvMass);
 530
 531         TH1F *RecoPtDStar = new TH1F("RecoPtDStar","RECO DStar pt distribution",30,0,30);
 532         fOutput->Add(RecoPtDStar);
 533
 534         TH1F *RecoPtBkg = new TH1F("RecoPtBkg","RECO pt distribution side bands",30,0,30);
 535         fOutput->Add(RecoPtBkg);
 536
 537         TH1F *MCtagPtDStar = new TH1F("MCtagPtDStar","RECO pt of MCtagged DStars side bands",30,0,30);
 538         fOutput->Add(MCtagPtDStar);
 539
 540         TH2F *KZeroSpectra = new TH2F("KZeroSpectra","Spectra of K0s",500,0.3,0.8,250,0,25);
 541         if(fselect==3) fOutput->Add(KZeroSpectra);
 542
 543         TH2F *KZeroSpectraifHF = new TH2F("KZeroSpectraifHF","Spectra of K0s in association with a D*",500,0.3,0.8,250,0,25);
 544         if(fselect==3) fOutput->Add(KZeroSpectraifHF);
 545
 546         TH1D * NofTracksInPeak = new TH1D("NofTracksInPeak","NofTracksInPeak",500,0.5,500.5);
 547         fOutput->Add(NofTracksInPeak);
 548
 549         TH1D * NofTracksInSB = new TH1D("NofTracksInSB","NofTracksInSB",500,0.5,500.5);
 550         fOutput->Add(NofTracksInSB);
 551
 552         TH2I * EventMixingCheck = new TH2I("EventMixingCheck","EventMixingCheck",5,-0.5,4.5,7,-0.5,6.5);
 553         if(fmixing) fOutput->Add(EventMixingCheck);
 554
 555
 556
 557         TH1F * MCSources = new TH1F("MCSources","Origin of associated particles in MC", 10, -0.5, 9.5);
 558         MCSources->GetXaxis()->SetBinLabel(1,"All ");
 559         MCSources->GetXaxis()->SetBinLabel(2," from Heavy flavour");
 560         MCSources->GetXaxis()->SetBinLabel(3," from c->D");
 561         MCSources->GetXaxis()->SetBinLabel(4," from b->D");
 562         MCSources->GetXaxis()->SetBinLabel(5," from b->B");
 563         if(fmontecarlo) fOutput->Add(MCSources);
 564
 565         TH2F * PhiEtaTrigger = new TH2F("PhiEtaTrigger","#phi distribution of the trigger particle",36,-0.5*Pi,1.5*Pi,18,-0.9,0.9);
 566         fOutput->Add(PhiEtaTrigger);
 567
 568         TH2F * PhiEtaSideBand = new TH2F("PhiEtaSideBand","#phi distribution of the sideband particle",36,-0.5*Pi,1.5*Pi,18,-0.9,0.9);
 569         fOutput->Add(PhiEtaSideBand);
 570
 571         TH2F * PhiEtaPart = new TH2F("PhiEtaPart","#phi distribution of the associated particle",36,-0.5*Pi,1.5*Pi,18,-0.9,0.9);
 572         fOutput->Add(PhiEtaPart);
 573
 574
 575         //correlations histograms
 576         TString histoname1 = "DPhiDStar";
 577         if(fselect==1) histoname1 += "Hadron";
 578         if(fselect==2) histoname1 += "Kaon";
 579         if(fselect==3) histoname1 += "KZero";
 580
 581
 582         TH3D * DPhiDStar = new TH3D(histoname1.Data(),histoname1.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 583
 584         TH3D * DPhiDStarKZero1 = new TH3D("DPhiDStarKZero1","DPhiDStarKZero1",nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 585
 586         //side band background histograms
 587         TString histoname2 = "bkg";
 588         histoname2 += histoname1;
 589         TH3D * bkgDPhiDStar = new TH3D(histoname2.Data(),histoname2.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 590         TH3D * bkgDPhiDStarKZero1 = new TH3D("bkgDPhiDStarKZero1","bkgDPhiDStarKZero1",nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 591
 592
 593         fOutput->Add(DPhiDStar);
 594
 595         if(fselect==3){fOutput->Add(DPhiDStarKZero1);}
 596
 597         fOutput->Add(bkgDPhiDStar);
 598
 599         if(fselect==3){fOutput->Add(bkgDPhiDStarKZero1);}
 600
 601
 602         // ========================= histos for analysis on MC
 603         TString histoname3 = "MCTag";
 604         histoname3 += histoname1;
 605         TH3D * MCTagDPhiDStar = new TH3D(histoname3.Data(),histoname3.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 606
 607         TString histoname44 = "CharmDOrigin";
 608         histoname44 += histoname1;
 609         histoname44 += "MC";
 610
 611         TH3D * CharmDOriginDPhiDStar = new TH3D(histoname44.Data(),histoname44.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 612
 613
 614         TString histoname54 = "BeautyDOrigin";
 615         histoname54 += histoname1;
 616         histoname54 += "MC";
 617         TH3D * BeautyDOriginDPhiDStar = new TH3D(histoname54.Data(),histoname54.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 618
 619         TString histoname55 = "BeautyBOrigin";
 620         histoname55 += histoname1;
 621         histoname55 += "MC";
 622         TH3D * BeautyBOriginDPhiDStar = new TH3D(histoname55.Data(),histoname55.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
 623
 624         if(fmontecarlo){
 625
 626         fOutput->Add(MCTagDPhiDStar);
 627         fOutput->Add(CharmDOriginDPhiDStar);
 628         fOutput->Add(BeautyDOriginDPhiDStar);
 629         fOutput->Add(BeautyBOriginDPhiDStar);
 630
 631         }
 632
 633
 634
 635 }
 636
 637
 638
 639 //____________________________  Function for MC correlations ___________________________________________________
 640 void AliAnalysisTaskDStarCorrelations::FillMCTagCorrelations(Double_t ptTrig, Double_t DelPhi,  Double_t DelEta, Double_t ptTrack, Int_t mcSource){
 641
 642
 643         if(fselect==1) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarHadron"))->Fill(DelPhi,ptTrig,DelEta);
 644         if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarKaon"))->Fill(DelPhi,ptTrig,DelEta);
 645         if(fselect==3) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarKZero"))->Fill(DelPhi,ptTrig,DelEta);
 646
 647
 648
 649 ((TH1F*)fOutput->FindObject("MCSources"))->Fill(0);
 650
 651 if (mcSource==44){ // is from charm ->D
 652         if(fselect==1) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarHadronMC"))->Fill(DelPhi,ptTrig,DelEta);
 653         if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarKaonMC"))->Fill(DelPhi,ptTrig,DelEta);
 654         if(fselect==3) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarKZeroMC"))->Fill(DelPhi,ptTrig,DelEta);
 655
 656
 657         ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
 658         ((TH1F*)fOutput->FindObject("MCSources"))->Fill(2);
 659         }
 660
 661 if (mcSource==54){ // is from beauty -> D
 662         if(fselect==1) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarHadronMC"))->Fill(DelPhi,ptTrig,DelEta);
 663         if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarKaonMC"))->Fill(DelPhi,ptTrig,DelEta);
 664         if(fselect==3) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarKZeroMC"))->Fill(DelPhi,ptTrig,DelEta);
 665         if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
 666         if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(3);
 667         }
 668
 669 if (mcSource==55){ // is from beauty ->B
 670         if(fselect==1) ((TH3D*)fOutput->FindObject("BeautyBOriginDPhiDStarHadronMC"))->Fill(DelPhi,ptTrig,DelEta);
 671         if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("BeautyBOriginDPhiDStarKaonMC"))->Fill(DelPhi,ptTrig,DelEta);
 672         if(fselect==3) ((TH3D*)fOutput->FindObject("BeautyOriginBDPhiDStarKZeroMC"))->Fill(DelPhi,ptTrig,DelEta);
 673         if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
 674         if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(4);
 675         }
 676         return;
 677 }
 678
 679
 680
 681
 682