1 /**************************************************************************
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2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
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4 * Author: The ALICE Off-line Project. *
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5 * Contributors are mentioned in the code where appropriate. *
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7 * Permission to use, copy, modify and distribute this software and its *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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9 * without fee, provided that the above copyright notice appears in all *
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10 * copies and that both the copyright notice and this permission notice *
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11 * appear in the supporting documentation. The authors make no claims *
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12 * about the suitability of this software for any purpose. It is *
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13 * provided "as is" without express or implied warranty. *
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14 **************************************************************************/
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16 //-----------------------------------------------------------------
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17 // AliAnalysisTaskSpectraBoth class
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18 //-----------------------------------------------------------------
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22 #include "TLegend.h"
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25 #include "TCanvas.h"
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26 #include "AliAnalysisTask.h"
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27 #include "AliAnalysisManager.h"
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28 #include "AliAODTrack.h"
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29 #include "AliAODMCParticle.h"
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30 #include "AliVParticle.h"
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31 #include "AliAODEvent.h"
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32 #include "AliAODInputHandler.h"
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33 #include "AliAnalysisTaskSpectraBoth.h"
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34 #include "AliAnalysisTaskESDfilter.h"
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35 #include "AliAnalysisDataContainer.h"
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36 #include "AliSpectraBothHistoManager.h"
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37 #include "AliSpectraBothTrackCuts.h"
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38 #include "AliSpectraBothEventCuts.h"
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39 #include "AliCentrality.h"
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42 #include "AliVEvent.h"
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43 #include "AliESDEvent.h"
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44 #include "AliPIDResponse.h"
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45 #include "AliStack.h"
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46 #include "AliSpectraBothPID.h"
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47 #include <TMCProcess.h>
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54 using namespace AliSpectraNameSpaceBoth;
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55 using namespace std;
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57 ClassImp(AliAnalysisTaskSpectraBoth)
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59 //________________________________________________________________________
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60 AliAnalysisTaskSpectraBoth::AliAnalysisTaskSpectraBoth(const char *name) : AliAnalysisTaskSE(name), fAOD(0), fHistMan(0), fTrackCuts(0), fEventCuts(0), fPID(0), fIsMC(0), fNRebin(0),fUseMinSigma(0),fCuts(0),fdotheMCLoopAfterEventCuts(0)
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62 // Default constructor
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64 DefineInput(0, TChain::Class());
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65 DefineOutput(1, AliSpectraBothHistoManager::Class());
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66 DefineOutput(2, AliSpectraBothEventCuts::Class());
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67 DefineOutput(3, AliSpectraBothTrackCuts::Class());
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68 DefineOutput(4, AliSpectraBothPID::Class());
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72 //________________________________________________________________________
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73 //________________________________________________________________________
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74 void AliAnalysisTaskSpectraBoth::UserCreateOutputObjects()
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76 // create output objects
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77 fHistMan = new AliSpectraBothHistoManager("SpectraHistos",fNRebin);
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79 if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
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80 if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
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81 if (!fPID) AliFatal("PID object should be set in the steering macro");
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82 fTrackCuts->SetAliESDtrackCuts(fCuts);
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83 PostData(1, fHistMan );
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84 PostData(2, fEventCuts);
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85 PostData(3, fTrackCuts);
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89 //________________________________________________________________________
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90 void AliAnalysisTaskSpectraBoth::UserExec(Option_t *)
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93 Int_t ifAODEvent=AliSpectraBothTrackCuts::kotherobject;
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94 fAOD = dynamic_cast<AliVEvent*>(InputEvent());
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96 // AliESDEvent* esdevent=0x0;
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97 // AliAODEvent* aodevent=0x0;
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99 TString nameoftrack(fAOD->ClassName());
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100 if(!nameoftrack.CompareTo("AliESDEvent"))
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102 ifAODEvent=AliSpectraBothTrackCuts::kESDobject;
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103 //esdevent=dynamic_cast<AliESDEvent*>(fAOD);
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105 else if(!nameoftrack.CompareTo("AliAODEvent"))
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107 ifAODEvent=AliSpectraBothTrackCuts::kAODobject;
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108 //aodevent=dynamic_cast<AliAODEvent*>(fAOD);
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111 AliFatal("Not processing AODs or ESDS") ;
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112 if(fdotheMCLoopAfterEventCuts)
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113 if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
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116 TClonesArray *arrayMC = 0;
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118 AliStack* stack=0x0;
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123 if(ifAODEvent==AliSpectraBothTrackCuts::kAODobject)
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125 arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
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128 AliFatal("Error: MC particles branch not found!\n");
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130 Int_t nMC = arrayMC->GetEntries();
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131 for (Int_t iMC = 0; iMC < nMC; iMC++)
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133 AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
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134 if(!partMC->Charge()) continue;//Skip neutrals
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135 //if(partMC->Eta() > fTrackCuts->GetEtaMin() && partMC->Eta() < fTrackCuts->GetEtaMax()){//charged hadron are filled inside the eta acceptance
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136 //Printf("%f %f-%f",partMC->Eta(),fTrackCuts->GetEtaMin(),fTrackCuts->GetEtaMax());
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137 if(partMC->Eta() > fTrackCuts->GetEtaMin() && partMC->Eta() < fTrackCuts->GetEtaMax())
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138 fHistMan->GetPtHistogram(kHistPtGen)->Fill(partMC->Pt(),partMC->IsPhysicalPrimary());
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141 if(TMath::Abs(partMC->Y()) > fTrackCuts->GetY() ) continue;
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142 if(partMC->IsPhysicalPrimary())
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144 // check for true PID + and fill P_t histos
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145 Int_t charge = partMC->Charge() > 0 ? kChPos : kChNeg ;
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146 Int_t id = fPID->GetParticleSpecie(partMC);
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147 if(id != kSpUndefined)
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149 fHistMan->GetHistogram2D(kHistPtGenTruePrimary,id,charge)->Fill(partMC->Pt(),partMC->IsPhysicalPrimary());
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153 if(ifAODEvent==AliSpectraBothTrackCuts::kESDobject)
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155 AliMCEvent* mcEvent = (AliMCEvent*) MCEvent();
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156 //Printf("MC particles: %d", mcEvent->GetNumberOfTracks());
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159 AliFatal("Error: MC particles branch not found!\n");
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161 stack = mcEvent->Stack();
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162 Int_t nMC = stack->GetNtrack();
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163 for (Int_t iMC = 0; iMC < nMC; iMC++)
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166 TParticle *partMC = stack->Particle(iMC);
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171 if(!partMC->GetPDG(0))
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173 if(TMath::Abs(partMC->GetPDG(0)->Charge()/3.0)<0.01)
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174 continue;//Skip neutrals
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175 if(partMC->Eta() > fTrackCuts->GetEtaMin() && partMC->Eta() < fTrackCuts->GetEtaMax())
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176 fHistMan->GetPtHistogram(kHistPtGen)->Fill(partMC->Pt(),stack->IsPhysicalPrimary(iMC));
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177 if(TMath::Abs(partMC->Y()) > fTrackCuts->GetY() )
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179 if(stack->IsPhysicalPrimary(iMC))
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181 // check for true PID + and fill P_t histos
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182 Int_t charge = partMC->GetPDG(0)->Charge()/3.0 > 0 ? kChPos : kChNeg ;
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183 Int_t id = fPID->GetParticleSpecie(partMC);
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184 if(id != kSpUndefined)
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186 fHistMan->GetHistogram2D(kHistPtGenTruePrimary,id,charge)->Fill(partMC->Pt(),stack->IsPhysicalPrimary(iMC));
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192 if(!fdotheMCLoopAfterEventCuts)
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193 if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
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195 //main loop on tracks
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197 //cout<<fAOD->GetNumberOfTracks()<<endl;
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198 for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++)
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200 AliVTrack* track = dynamic_cast<AliVTrack*>(fAOD->GetTrack(iTracks));
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201 AliAODTrack* aodtrack=0;
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202 AliESDtrack* esdtrack=0;
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204 if(ifAODEvent==AliSpectraBothTrackCuts::kESDobject)
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206 esdtrack=dynamic_cast<AliESDtrack*>(track);
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210 esdtrack->GetImpactParameters(dca,dcaz);
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212 else if (ifAODEvent==AliSpectraBothTrackCuts::kAODobject)
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214 aodtrack=dynamic_cast<AliAODTrack*>(track);
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217 dca=aodtrack->DCA();
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221 if (!fTrackCuts->IsSelected(track,kTRUE))
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224 fPID->FillQAHistos(fHistMan, track, fTrackCuts);
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226 //calculate DCA for AOD track
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228 {// track->DCA() does not work in old AOD production
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229 Double_t d[2], covd[3];
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230 AliVTrack* track_clone=(AliVTrack*)track->Clone("track_clone"); // need to clone because PropagateToDCA updates the track parameters
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231 Bool_t isDCA = track_clone->PropagateToDCA(fAOD->GetPrimaryVertex(),fAOD->GetMagneticField(),9999.,d,covd);
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232 delete track_clone;
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237 fHistMan->GetPtHistogram(kHistPtRec)->Fill(track->Pt(),dca); // PT histo
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238 // get identity and charge
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239 Bool_t rec[3]={false,false,false};
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240 Int_t idRec = fPID->GetParticleSpecie(fHistMan,track, fTrackCuts,rec);
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241 for(int irec=kSpPion;irec<kNSpecies;irec++)
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252 idRec = kSpUndefined;
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257 Int_t charge = track->Charge() > 0 ? kChPos : kChNeg;
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259 // Fill histograms, only if inside y and nsigma acceptance
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260 if(idRec != kSpUndefined && fTrackCuts->CheckYCut ((BothParticleSpecies_t)idRec))
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261 fHistMan->GetHistogram2D(kHistPtRecSigma,idRec,charge)->Fill(track->Pt(),dca);
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262 //can't put a continue because we still have to fill allcharged primaries, done later
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265 if (arrayMC||stack)
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267 Bool_t isPrimary = kFALSE;
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268 Bool_t isSecondaryMaterial = kFALSE;
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269 Bool_t isSecondaryWeak = kFALSE;
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270 Int_t idGen =kSpUndefined;
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272 if (ifAODEvent==AliSpectraBothTrackCuts::kAODobject)
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274 AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(track->GetLabel()));
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277 AliError("Cannot get MC particle");
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280 // Check if it is primary, secondary from material or secondary from weak decay
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281 isPrimary = partMC->IsPhysicalPrimary();
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282 isSecondaryWeak = partMC->IsSecondaryFromWeakDecay();
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283 isSecondaryMaterial = partMC->IsSecondaryFromMaterial();
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284 //cout<<"AOD tagging "<<isPrimary<<" "<<isSecondaryWeak<<isSecondaryMaterial<<" "<<partMC->GetMCProcessCode()<<endl;
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286 if(!isPrimary&&!isSecondaryWeak&&!isSecondaryMaterial)
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288 AliError("old tagging");
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289 Int_t mfl=-999,codemoth=-999;
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290 Int_t indexMoth=partMC->GetMother(); // FIXME ignore fakes? TO BE CHECKED, on ESD is GetFirstMother()
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293 AliAODMCParticle* moth = (AliAODMCParticle*) arrayMC->At(indexMoth);
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294 codemoth = TMath::Abs(moth->GetPdgCode());
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295 mfl = Int_t (codemoth/ TMath::Power(10, Int_t(TMath::Log10(codemoth))));
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297 //Int_t uniqueID = partMC->GetUniqueID();
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298 //cout<<"uniqueID: "<<partMC->GetUniqueID()<<" "<<kPDecay<<endl;
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299 //cout<<"status: "<<partMC->GetStatus()<<" "<<kPDecay<<endl;
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300 // if(uniqueID == kPDecay)Printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
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302 isSecondaryWeak = kTRUE; // add if(partMC->GetStatus() & kPDecay)? FIXME
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304 isSecondaryMaterial = kTRUE;
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306 //cout<<"AOD 2 tagging "<<isPrimary<<" "<<isSecondaryWeak<<isSecondaryMaterial<<" "<<partMC->GetMCProcessCode()<<endl;
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309 idGen = fPID->GetParticleSpecie(partMC);
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310 pdgcode=partMC->GetPdgCode();
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312 else if (ifAODEvent==AliSpectraBothTrackCuts::kESDobject)
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314 TParticle *partMC =stack->Particle(TMath::Abs(track->GetLabel()));
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317 AliError("Cannot get MC particle");
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320 isPrimary = stack->IsPhysicalPrimary(TMath::Abs(track->GetLabel()));
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321 isSecondaryWeak = stack->IsSecondaryFromWeakDecay(TMath::Abs(track->GetLabel()));
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322 isSecondaryMaterial = stack->IsSecondaryFromMaterial(TMath::Abs(track->GetLabel()));
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323 //cout<<"ESD tagging "<<isPrimary<<" "<<isSecondaryWeak<<isSecondaryMaterial<<endl;
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325 idGen = fPID->GetParticleSpecie(partMC);
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326 pdgcode=partMC->GetPdgCode();
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331 // cout<<isPrimary<<" "<<isSecondaryWeak<<" "<<isSecondaryMaterial<<endl;
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332 // cout<<" functions "<<partMC->IsPhysicalPrimary()<<" "<<partMC->IsSecondaryFromWeakDecay()<<" "<<partMC->IsSecondaryFromMaterial()<<endl;
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334 if (isPrimary&&irec==kSpPion)
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335 fHistMan->GetPtHistogram(kHistPtRecPrimary)->Fill(track->Pt(),dca); // PT histo of primaries
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337 //nsigma cut (reconstructed nsigma)
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338 if(idRec == kSpUndefined)
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341 // rapidity cut (reconstructed pt and identity)
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342 if(!fTrackCuts->CheckYCut ((BothParticleSpecies_t)idRec)) continue;
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346 //if(TMath::Abs(partMC->Y()) > fTrackCuts->GetY() ) continue; // FIXME: do we need a rapidity cut on the generated?
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347 // Fill histograms for primaries
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349 if (idRec == idGen) fHistMan->GetHistogram2D(kHistPtRecTrue, idGen, charge)->Fill(track->Pt(),dca);
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353 fHistMan->GetHistogram2D(kHistPtRecSigmaPrimary, idRec, charge)->Fill(track->Pt(),dca);
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354 if(idGen != kSpUndefined)
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356 fHistMan->GetHistogram2D(kHistPtRecPrimary, idGen, charge)->Fill(track->Pt(),dca);
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357 if (idRec == idGen)
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358 fHistMan->GetHistogram2D(kHistPtRecTruePrimary, idGen, charge)->Fill(track->Pt(),dca);
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361 //25th Apr - Muons are added to Pions -- FIXME
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362 if ( pdgcode == 13 && idRec == kSpPion)
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364 fHistMan->GetPtHistogram(kHistPtRecTrueMuonPlus)->Fill(track->Pt(),dca);
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366 fHistMan->GetPtHistogram(kHistPtRecTruePrimaryMuonPlus)->Fill(track->Pt(),dca);
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368 if ( pdgcode == -13 && idRec == kSpPion)
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370 fHistMan->GetPtHistogram(kHistPtRecTrueMuonMinus)->Fill(track->Pt(),dca);
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373 fHistMan->GetPtHistogram(kHistPtRecTruePrimaryMuonMinus)->Fill(track->Pt(),dca);
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379 // Fill secondaries
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380 if(isSecondaryWeak )
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381 fHistMan->GetHistogram2D(kHistPtRecSigmaSecondaryWeakDecay, idRec, charge)->Fill(track->Pt(),dca);
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382 if(isSecondaryMaterial)
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383 fHistMan->GetHistogram2D(kHistPtRecSigmaSecondaryMaterial , idRec, charge)->Fill(track->Pt(),dca);
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389 } // end loop on tracks
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390 // cout<< ntracks<<endl;
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391 fHistMan->GetGenMulvsRawMulHistogram("hHistGenMulvsRawMul")->Fill(npar,ntracks);
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392 PostData(1, fHistMan );
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393 PostData(2, fEventCuts);
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394 PostData(3, fTrackCuts);
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395 PostData(4, fPID );
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398 //_________________________________________________________________
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399 void AliAnalysisTaskSpectraBoth::Terminate(Option_t *)
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