2 AliAnalysisTaskGammaConvDalitz* AddTaskGammaConvDalitz(
5 Bool_t standalone = kFALSE
9 AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
11 ::Error("AddGammaConvDalitz", "No analysis manager to connect to.");
15 // Check the analysis type using the event handlers connected to the analysis manager.
16 //==============================================================================
17 if (!mgr->GetInputEventHandler()) {
18 ::Error("AddGammaConvDalitz", "This task requires an input event handler");
23 //------------------------- Dalitz task ---------------------------------
24 AliGammaConversionHistograms* histogramsD = new AliGammaConversionHistograms();
25 AddHistogramsDalitz( histogramsD );
27 AliAnalysisTaskGammaConvDalitz* dalitzTask = new AliAnalysisTaskGammaConvDalitz("GammaConversionTaskDalitz");
28 AliV0Reader* v0ReaderD = v0Reader;
30 dalitzTask->AdoptHistograms( histogramsD );
31 dalitzTask->SetComputeBackground( computeBkg );
32 dalitzTask->SetUseBayesPID( kGCUseBayesPID );
33 dalitzTask->SetNSigmasElecTPC( kGCNSigmaBelowElecTPCbethe, kGCNSigmaAboveElecTPCbethe);
34 dalitzTask->SetNSigmasPionTPC( kGCNSigmaAbovePionTPCbethe );
35 dalitzTask->SetNSigmasKaonTPC( kGCNSigmaAboveKaonTPCbethe );
36 dalitzTask->SetNSigmasProtonTPC( kGCNSigmaAboveProtonTPCbethe );
38 dalitzTask->SetUseESDtrackIndexCut( kGCUseTrackIndexCut );
39 dalitzTask->SetUsePsiPairCut( kGCUsePsiPairCut );
40 dalitzTask->SetPsiPairCut( kGCPsiPairCut, kGCDeltaPhiCutMin, kGCDeltaPhiCutMax, kGCReadMagFieldSign);
41 dalitzTask->SetUseMassCut( kGCUseMassCut );
42 dalitzTask->SetUseGammaCut( kGCUseGammaCut );
43 dalitzTask->SetUseAliKF( kGCUseAliKF );
45 dalitzTask->SetTrackSelectionCriteria(kGCTrkSelectionCriteria);
48 // -----------------------------
50 AliESDtrackCuts* esdTrackCuts = new AliESDtrackCuts("track cuts for pi0 Dalitz decay");
52 esdTrackCuts->SetEtaRange( -0.9, 0.9 );
53 esdTrackCuts->SetAcceptKinkDaughters(kFALSE);
55 esdTrackCuts->SetMinNClustersITS(2);
56 esdTrackCuts->SetClusterRequirementITS(AliESDtrackCuts::kSPD, AliESDtrackCuts::kFirst);
57 esdTrackCuts->SetRequireITSRefit(kTRUE);
59 //esdTrackCuts->SetRequireSigmaToVertex(kTRUE);
60 //esdTrackCuts->SetMaxNsigmaToVertex(3);
62 esdTrackCuts->SetMaxDCAToVertexXY(1.);
63 esdTrackCuts->SetMaxDCAToVertexZ(3.);
64 esdTrackCuts->SetDCAToVertex2D(kTRUE);
67 AliESDtrackCuts* esdITSsaTrackCuts = new AliESDtrackCuts(*esdTrackCuts);
68 esdITSsaTrackCuts->SetRequireITSStandAlone(kTRUE);
70 dalitzTask->AdoptITSsaTrackCuts( esdITSsaTrackCuts );
72 esdTrackCuts->SetMinNClustersTPC(80);
73 esdTrackCuts->SetMaxChi2PerClusterTPC(4.);
74 esdTrackCuts->SetMaxCovDiagonalElements(2,2,0.5,0.5,2);
75 esdTrackCuts->SetRequireTPCRefit(kTRUE);
77 dalitzTask->AdoptESDtrackCuts( esdTrackCuts );
79 // --------------------- electrons pid cuts -----------------------------
80 esdPidCuts = new AliESDpidCuts("Electrons", "Electron PID cuts");
81 // esdPidCuts->SetTPCnSigmaCut(AliPID::kElectron, 3.);
82 esdPidCuts->SetTPCnSigmaCut(AliPID::kElectron, -3., 3.);
83 //esdPidCuts->SetTPCnSigmaCut(AliPID::kPion, -1000., 0.);
85 dalitzTask->AdoptESDpidCuts( esdPidCuts );
89 v0ReaderD = new AliV0Reader( *v0Reader ); // Copy constructor
90 v0ReaderD->SetHistograms( histogramsD );
91 v0ReaderD->SetDoMCTruth( kGCdoMCTruth ); // NOTE: not copied in Copy constructor!!!
92 v0ReaderD->SetESDtrackCuts( esdTrackCuts );
93 dalitzTask->SetRunStandalone( kTRUE );
96 dalitzTask->SetV0Reader( v0ReaderD );
97 dalitzTask->SetDoMC(kGCdoMCTruth);
99 dalitzTask->SetDebugLevel(AliLog::kFatal);
101 // Select triggers events (needs AliPhysicsSelectionTask in the train)
102 dalitzTask->SelectCollisionCandidates();
104 // Add task to the manager
105 mgr->AddTask( dalitzTask );
107 // Connect I/O to the task
108 TString outputfile = AliAnalysisManager::GetCommonFileName();
109 outputfile += ":PWG4_GammaConversion";
110 outputfile += Form("_%s",kGCAnalysisCutSelectionId.Data());
111 AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("histogramsAliGammaConversionDalitz", TList::Class(),AliAnalysisManager::kOutputContainer, outputfile);
112 mgr->ConnectInput ( dalitzTask, 0, mgr->GetCommonInputContainer() );
113 mgr->ConnectOutput( dalitzTask, 1, coutput3 );
118 //----------------------------------------------------------------------------------
121 Int_t kGCnElementsPi0Table = 5;
122 const char* kGCPi0Table[] = {
124 "\\pi^{0}->\\gamma\\gamma", // 1
125 "\\pi^{0}->e+e-\\gamma", // 2
126 "\\pi^{0}->e+e-\\gamma acceptance", // 3
127 "\\pi^{0}->e+e-\\gamma converted" // 4
130 //----------------------------------------------------------------------------------
132 Int_t kGCnElementsPidTable = 6;
133 const char* kGCPidTable[] = { "e", "\\mu", "\\pi", "K", "p", "sum" };
135 //----------------------------------------------------------------------------------
137 // Table_ElectronDalitz (ESD cuts)
138 Int_t kGCnElementsElectronDalitzTable = 8;
139 const char * kGCElectronDalitzTable[] = {
141 "e+ candidates", // 1
142 "e- candidates", // 2
146 "\\gamma \\pi^{0}", // 6
147 "\\pi^{0} Dalitz" // 7
150 //----------------------------------------------------------------------------------
151 // Table_ElectronDalitz (ESD cuts)
152 Int_t kGCnElementsCutsTable = 6;
153 const char * kGCCutsTable[] = {
162 //----------------------------------------------------------------------------------
163 void AddHistogramsDalitz( AliGammaConversionHistograms *histograms )
170 histograms->AddHistogram("MC_Pi0Dalitz_P", "\\pi^{0} Dalitz decay", kGCnXBinsPt, kGCfirstXBinPt, kGClastXBinPt/5., "p (GeV/c)", "");
171 histograms->AddHistogram("MC_Pi0Dalitz_Pt", "\\pi^{0} Dalitz decay", kGCnXBinsPt, kGCfirstXBinPt, kGClastXBinPt/5., "p_{t} (GeV/c)", "");
172 histograms->AddHistogram("MC_Pi0Dalitz_Eta", "\\pi^{0} Dalitz decay", kGCnXBinsEta, kGCfirstXBinEta, kGClastXBinEta, "\\eta" , "");
173 histograms->AddHistogram("MC_Pi0Dalitz_Pt_vs_Y", "\\pi^{0} Dalitz decay", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPt, kGCfirstXBinPt, kGClastXBinPt/5., "y","p_{t} (GeV/c)");
174 histograms->AddHistogram("MC_Acceptance_Pi0Dalitz_Pt_vs_Y", "\\pi^{0} Acceptance", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPt, kGCfirstXBinPt, kGClastXBinPt/5., "y","p_{t} (GeV/c)");
175 histograms->AddHistogram("MC_Acceptance_GC_Pi0Dalitz_Pt_vs_Y", "\\pi^{0} Acceptance with converted \\gamma", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPt, kGCfirstXBinPt, kGClastXBinPt/5., "y","p_{t} (GeV/c)");
178 histograms->AddHistogram("MC_EposDalitz_Pt", "e+ from Dalitz pair", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
179 histograms->AddHistogram("MC_EposDalitz_Eta", "e+ from Dalitz pair", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
182 histograms->AddHistogram("MC_EnegDalitz_Pt", "e- from Dalitz pair", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
183 histograms->AddHistogram("MC_EnegDalitz_Eta", "e- from Dalitz pair", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
186 histograms->AddHistogram("MC_GammaPi0Dalitz_Pt", "\\gamma from \\pi^{0} Dalitz decay", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
187 histograms->AddHistogram("MC_GammaPi0Dalitz_Eta", "\\gamma from \\pi^{0} Dalitz decay", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
191 histograms->AddHistogram("MC_EposEnegDalitz_Angle", "e+e- Dalitz pair", kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,"Angle(e+,e-) (rad)","");
193 histograms->AddHistogram("MC_EposEnegDalitz_GammaPi0_Angle", "Angle between the plane e+e- and \\gamma from Pi0 Dalitz decay", kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,"\\theta (rad)","");
194 histograms->AddHistogram("MC_EposEnegDalitz_GammaPi0_Angle_vs_P","Angle between the plane e+e- and \\gamma from Pi0 Dalitz decay",kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"\\theta (rad)","p(\\pi^{0}) (GeV/c)");
195 histograms->AddHistogram("MC_EposEnegDalitz_GammaPi0_Angle_vs_Pt","Angle between the plane e+e- and \\gamma from Pi0 Dalitz decay",kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"\\theta (rad)","p_{t}(\\pi^{0}) (GeV/c)");
197 // Pi0 within acceptance
198 histograms->AddHistogram("MC_Acceptance_Pi0Dalitz_Pt", "\\pi^{0} Dalitz decay within acceptance", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
199 histograms->AddHistogram("MC_Acceptance_Pi0Dalitz_Eta", "\\pi^{0} Dalitz decay within acceptance", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
200 histograms->AddHistogram("MC_Acceptance_Pi0Dalitz_Radius", "\\pi^{0} Dalitz decay within acceptance", kGCnXBinsR,kGCfirstXBinR,kGClastXBinR,"Radius(XY) cm","");
202 histograms->AddHistogram("MC_Acceptance_GammaPi0Dalitz_Pt", "\\gamma from \\pi^{0} Dalitz, \\pi^{0} within acceptance ", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
203 histograms->AddHistogram("MC_Acceptance_GammaPi0Dalitz_Eta", "\\gamma from \\pi^{0} Dalitz, \\pi^{0} within acceptance ", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
205 histograms->AddHistogram("MC_Acceptance_DalitzPair_OpeningAngle", "Dalitz pair within acceptance", kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,"Angle(e+,e-) (rad)","");
206 histograms->AddHistogram("MC_GC_GammaPi0Dalitz_All_Z_vs_R", "\\gamma from \\pi^{0} Dalitz decay", kGCnXBinsZR, kGCfirstXBinZR, kGClastXBinZR, kGCnYBinsZR, kGCfirstYBinZR, kGClastYBinZR, "Z (cm)"," R (cm)");
208 // e+ within acceptance
209 histograms->AddHistogram("MC_Acceptance_EposDalitz_Pt", "e+ from Dalitz pair within acceptance", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
210 histograms->AddHistogram("MC_Acceptance_EposDalitz_Eta", "e+ from Dalitz pair within acceptance", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
213 histograms->AddHistogram("MC_Acceptance_EnegDalitz_Pt", "e- from Dalitz pair within acceptance", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
214 histograms->AddHistogram("MC_Acceptance_EnegDalitz_Eta", "e- from Dalitz pair within acceptance", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
216 histograms->AddHistogram("MC_Acceptance_DalitzPair_EposPt_vs_EnegPt","Dalitz pair within acceptance", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t}(e+) (GeV/c)","p_{t}(e-) (GeV/c)");
218 // within acceptance with gamma converted
219 histograms->AddHistogram("MC_Acceptance_GC_Pi0Dalitz_Pt", "\\pi^{0} Dalitz decay within acceptance with \\gamma converted", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
220 histograms->AddHistogram("MC_Acceptance_GC_Pi0Dalitz_Eta", "\\pi^{0} Dalitz decay within acceptance with \\gamma converted", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
222 histograms->AddHistogram("MC_Acceptance_GC_EposPi0Dalitz_Pt", "e+ from Dalitz pair, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
223 histograms->AddHistogram("MC_Acceptance_GC_EposPi0Dalitz_Eta", "e+ from Dalitz pair, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
225 histograms->AddHistogram("MC_Acceptance_GC_EnegPi0Dalitz_Pt", "e- from Dalitz pair, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
226 histograms->AddHistogram("MC_Acceptance_GC_EnegPi0Dalitz_Eta", "e- from Dalitz pair, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
228 histograms->AddHistogram("MC_Acceptance_GC_GammaPi0Dalitz_Pt", "\\gamma from \\pi^{0} Dalitz, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
229 histograms->AddHistogram("MC_Acceptance_GC_GammaPi0Dalitz_Eta", "\\gamma from \\pi^{0} Dalitz, \\pi^{0} within acceptance with \\gamma converted", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
230 histograms->AddHistogram("MC_Acceptance_GC_GammaPi0Dalitz_Z_vs_R", "\\gamma from \\pi^{0} Dalitz decay within acceptance GC", kGCnXBinsZR, kGCfirstXBinZR, kGClastXBinZR, kGCnYBinsZR, kGCfirstYBinZR, kGClastYBinZR, "Z (cm)","R (cm)");
233 // ---------------------------------------------------------------------------
235 // reconstructed epos
236 histograms->AddHistogram("ESD_EposCandidates_Pt", "Reconstructed e+ candidates", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
237 histograms->AddHistogram("ESD_EposCandidates_Eta", "Reconstructed e+ candidates", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
239 // reconstructed eneg
240 histograms->AddHistogram("ESD_EnegCandidates_Pt", "Reconstructed e- candidates", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
241 histograms->AddHistogram("ESD_EnegCandidates_Eta", "Reconstructed e- candidates", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
243 // Reconstructed dalitz pair
244 histograms->AddHistogram("ESD_DalitzPairCandidates_Pt", "Reconstructed Dalitz pair candidates", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
245 histograms->AddHistogram("ESD_DalitzPairCandidates_Mass", "Reconstructed Dalitz pair candidates", kGCnXBinsDalitzMass, kGCfirstXBinDalitzMass, kGClastXBinDalitzMass, "M(e+,e-) (GeV/c^{2})","");
248 histograms->AddHistogram("ESD_GammaCandidates_Pt", "Reconstructed \\gamma candidates", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
249 histograms->AddHistogram("ESD_GammaCandidates_Eta", "Reconstructed \\gamma candidates", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
251 histograms->AddHistogram("ESD_EposEneg_GammaCandidates_Angle", "Angle between e+, e- candidates and \\gamma candidates", kGCnXBinsEPosNegAngle,kGCfirstXBinEPosNegAngle,kGClastXBinEPosNegAngle,"Angle(e+e-, \\gamma) (rad)","");
255 histograms->AddHistogram("ESD_Pi0_P", "\\pi^{0} Dalitz decay", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p (GeV/c)","");
256 histograms->AddHistogram("ESD_Pi0_Pt", "\\pi^{0} Dalitz decay", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
257 histograms->AddHistogram("ESD_Pi0_Eta", "\\pi^{0} Dalitz decay", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
258 histograms->AddHistogram("ESD_Pi0_Y", "\\pi^{0} Dalitz decay", kGCnXBinsRapid,kGCfirstXBinRapid,kGClastXBinRapid,"y","");
259 histograms->AddHistogram("ESD_Pi0_Phi", "\\pi^{0} Dalitz decay", kGCnXBinsPhi,kGCfirstXBinPhi,kGClastXBinPhi," \\phi (rad)","");
260 histograms->AddHistogram("ESD_Pi0_Mass", "\\pi^{0} Dalitz decay", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-,\\gamma) (GeV/c^{2})","");
261 histograms->AddHistogram("ESD_Pi0_Pt_vs_Y","\\pi^{0} Dalitz decay", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"y","p_{t} (GeV/c)");
262 histograms->AddHistogram("ESD_Pi0_Mass_vs_Pt","\\pi^{0} Dalitz decay", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5., kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"p_{t} (GeV/c)","M(e+,e-,\\gamma) (GeV/c^{2})");
263 histograms->AddHistogram("ESD_Pi0_Mass_vs_Eta","\\pi^{0} Dalitz decay", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta, kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"\\eta","M(e+,e-,\\gamma) (GeV/c^{2})");
264 histograms->AddHistogram("ESD_Pi0_Mass_vs_Y","\\pi^{0} Dalitz decay", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass, "y","M(e+,e-,\\gamma) (GeV/c^{2})");
267 histograms->AddHistogram("ESD_BKG_EposEneg", "Like sign background", kGCnXBinsDalitzMass, kGCfirstXBinDalitzMass, kGClastXBinDalitzMass,"M(e+,e+) & M(e-,e-) (GeV/c^{2})","");
268 histograms->AddHistogram("ESD_BKG_PrevGamma", "e+e- with \\gamma used in the signal", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-,\\gamma) (GeV/c^{2})","");
269 histograms->AddHistogram("ESD_BKG_PrevGamma_vs_Pt", "Backgroud: \\gamma used in the signal", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5., kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass, "p_{t} (GeV/c)", "M(e+,e-,\\gamma) (GeV/c^{2})");
271 histograms->AddHistogram("ESD_BKG_BGHandler", "e+e- with \\gamma from a pool of events", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-,\\gamma) (GeV/c^{2})","");
272 histograms->AddHistogram("ESD_BKG_BGHandler_vs_Pt", "e+e- with \\gamma from a pool of events", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5., kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"p_{t} (GeV/c)","M(e+,e-,\\gamma) (GeV/c^{2})");
274 histograms->AddHistogram("ESD_BKG_Electron", "e+ with e-,\\gamma from a pool of events", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-,\\gamma) (GeV/c^{2})","");
275 histograms->AddHistogram("ESD_BKG_Electron_vs_Pt", "e+ with e-,\\gamma from a pool of events", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5., kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"p_{t} (GeV/c)","M(e+,e-,\\gamma) (GeV/c^{2})");
279 // ---------------------
282 histograms->AddHistogram("MC_ESD_EposDalitz_Pt", "Reconstructed e+ from Dalitz pair (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
283 histograms->AddHistogram("MC_ESD_EposDalitz_Eta", "Reconstructed e+ from Dalitz pair (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
285 // reconstructed eneg
286 histograms->AddHistogram("MC_ESD_EnegDalitz_Pt", "Reconstructed e- from Dalitz pair (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
287 histograms->AddHistogram("MC_ESD_EnegDalitz_Eta", "Reconstructed e- from Dalitz pair (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
289 // Reconstructed dalitz pair
290 histograms->AddHistogram("MC_ESD_DalitzPair_Pt", "Reconstructed Dalitz pair (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
291 histograms->AddHistogram("MC_ESD_DalitzPair_Mass", "Reconstructed Dalitz pair (MC)", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-) (GeV/c^{2})","");
293 // reconstructed gammas
294 histograms->AddHistogram("MC_ESD_Gamma_Pt", "Reconstructed \\gamma (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
295 histograms->AddHistogram("MC_ESD_Gamma_Eta", "Reconstructed \\gamma (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
298 histograms->AddHistogram("MC_ESD_GammaPi0Dalitz_Pt", "Reconstructed \\gamma from \\pi^{0} Dalitz (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
299 histograms->AddHistogram("MC_ESD_GammaPi0Dalitz_Eta", "Reconstructed \\gamma from \\pi^{0} Dalitz (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
301 // Reconstructed pi0 (MC)
302 histograms->AddHistogram("MC_ESD_Pi0_P", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p (GeV/c)","");
303 histograms->AddHistogram("MC_ESD_Pi0_Pt", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"p_{t} (GeV/c)","");
304 histograms->AddHistogram("MC_ESD_Pi0_Eta", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta,"\\eta","");
305 histograms->AddHistogram("MC_ESD_Pi0_Y", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsRapid,kGCfirstXBinRapid,kGClastXBinRapid,"y","");
306 histograms->AddHistogram("MC_ESD_Pi0_Phi", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsPhi,kGCfirstXBinPhi,kGClastXBinPhi," \\phi (rad)","");
307 histograms->AddHistogram("MC_ESD_Pi0_Mass", "\\pi^{0} Dalitz decay (MC)", kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"M(e+,e-,\\gamma) (GeV/c^{2})","");
309 histograms->AddHistogram("MC_ESD_Pi0_Pt_vs_Y","\\pi^{0} Dalitz decay (MC)", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5.,"y","p_{t} (GeV/c)");
310 histograms->AddHistogram("MC_ESD_Pi0_Mass_vs_Pt","\\pi^{0} Dalitz decay (MC)", kGCnXBinsPt,kGCfirstXBinPt,kGClastXBinPt/5., kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"p_{t} (GeV/c)","M(e+,e-,\\gamma) (GeV/c^{2})");
311 histograms->AddHistogram("MC_ESD_Pi0_Mass_vs_Eta","\\pi^{0} Dalitz decay (MC)", kGCnXBinsEta,kGCfirstXBinEta,kGClastXBinEta, kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass,"\\eta","M(e+,e-,\\gamma) (GeV/c^{2})");
312 histograms->AddHistogram("MC_ESD_Pi0_Mass_vs_Y","\\pi^{0} Dalitz decay (MC)", kGCnXBinsRapid, kGCfirstXBinRapid, kGClastXBinRapid, kGCnXBinsPi0DalitzMass, kGCfirstXBinPi0DalitzMass, kGClastXBinPi0DalitzMass, "y","M(e+,e-,\\gamma) (GeV/c^{2})");
315 //if(kGCTrkSelectionCriteria != 1)
317 histograms->AddHistogram("ESD_ITSsa_dEdx_vs_P", "ITS standalone tracks", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","ITS Signal (a.u.)");
318 histograms->AddHistogram("ESD_ITSsa_PidCut_dEdx_vs_P", "ITS standalone tracks after PID", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","ITS Signal (a.u.)");
322 histograms->AddHistogram("MC_ESD_ITSsa_PidCut_dEdx_vs_P", "ITS standalone tracks after PID (MC)", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","ITS Signal (a.u.)");
323 histograms->AddHistogram("MC_ESD_ITSsa_Electron_dEdx_vs_P", "ITS standalone electrons", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","ITS Signal (a.u.)");
326 histograms->AddHistogram("ESD_TPC_dEdx_vs_P" , "Global tracks", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","TPC Signal (a.u.)");
327 histograms->AddHistogram("ESD_TPC_PidCut_dEdx_vs_P", "Global tracks after PID", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","TPC Signal (a.u.)");
331 histograms->AddHistogram("MC_ESD_TPC_Electron_dEdx_vs_P" , "Electron global tracks", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","TPC Signal (a.u.)");
332 histograms->AddHistogram("MC_ESD_TPC_PidCut_dEdx_vs_P", "Global tracks after PID (MC)", kGCnXBinsP*5, kGCfirstXBinP, kGClastXBinP/5.,kGCnYBinsdEdx, kGCfirstYBindEdx, kGClastYBindEdx,"p (GeV/c)","TPC Signal (a.u.)");
336 histograms->AddHistogram("ESD_EposEneg_PsiPair_vs_DPhi", "e+e- candidates", 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, "\\Delta\\phi (rad)","\\psi_{pair}");
340 histograms->AddHistogram("MC_ESD_DalitzPair_PsiPair_vs_DPhi", "Dalitz pairs (MC)", 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, "\\Delta\\phi (rad)","\\psi_{pair}");
342 histograms->AddHistogram("MC_ESD_EposEnegGamma_PsiPair_vs_DPhi", "e+e- from \\gamma conversion (MC)", 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, 2*kGCnXBinsOpeningAngle, -1*kGClastXBinOpeningAngle, kGClastXBinOpeningAngle, "\\Delta\\phi (rad)","\\psi_{pair}");
348 histograms->AddTable("Table_Generation","Generation",kGCnElementsPi0Table,kGCPi0Table);
349 histograms->AddTable("Table_PID","particle table (Row: PID, Col: MC)", kGCnElementsPidTable, kGCPidTable, kGCnElementsPidTable, kGCPidTable);
351 histograms->AddTable("Table_Reconstruction","Reconstruction",kGCnElementsElectronDalitzTable,kGCElectronDalitzTable);
352 histograms->AddTable("Table_Cuts","Number of \\pi^{0}->e+e-\\gamma after cuts",kGCnElementsCutsTable,kGCCutsTable);
357 // NOTE: We should use fESDpid from fV0Reader (right now it is private)
358 // Better parameters for MonteCarlo from A. Kalweit 2010/01/8
361 fESDpid->GetTPCResponse().SetBetheBlochParameters( 4.23232575531564326e+00/50.,
362 8.68482806165147636e+00,
363 1.34000000000000005e-05,
364 2.30445734159456084e+00,
365 2.25624744086878559e+00);//Trujillo
368 fESDpid->GetTPCResponse().SetBetheBlochParameters( 2.49397e+00,
372 4.85791e+00); //AliRoot v4-18-Rev-10 //Dalitz Generation*/
375 /* fESDpid->GetTPCResponse().SetBetheBlochParameters( 2.15898e+00/50.,
386 // Better parameters for data from A. Kalweit 2010/01/8
387 fESDpid->GetTPCResponse().SetBetheBlochParameters( 0.0283086,