--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+// Class for heavy-flavour electron v2 with EMCal triggered events
+// Author: Denise Godoy
+
+
+#include "TChain.h"
+#include "TTree.h"
+#include "TH2F.h"
+#include "TMath.h"
+#include "TCanvas.h"
+#include "THnSparse.h"
+#include "TLorentzVector.h"
+#include "TString.h"
+#include "TFile.h"
+
+#include "AliAnalysisTask.h"
+#include "AliAnalysisManager.h"
+
+#include "AliESDEvent.h"
+#include "AliESDHandler.h"
+#include "AliAODEvent.h"
+#include "AliAODHandler.h"
+
+#include "AliAnalysisTaskElecV2.h"
+#include "TGeoGlobalMagField.h"
+#include "AliLog.h"
+#include "AliAnalysisTaskSE.h"
+#include "TRefArray.h"
+#include "TVector.h"
+#include "AliESDInputHandler.h"
+#include "AliESDpid.h"
+#include "AliESDtrackCuts.h"
+#include "AliPhysicsSelection.h"
+#include "AliESDCaloCluster.h"
+#include "AliAODCaloCluster.h"
+#include "AliEMCALRecoUtils.h"
+#include "AliEMCALGeometry.h"
+#include "AliGeomManager.h"
+#include "stdio.h"
+#include "TGeoManager.h"
+#include "iostream"
+#include "fstream"
+
+#include "AliEMCALTrack.h"
+#include "AliMagF.h"
+
+#include "AliKFParticle.h"
+#include "AliKFVertex.h"
+
+#include "AliPID.h"
+#include "AliPIDResponse.h"
+#include "AliHFEcontainer.h"
+#include "AliHFEcuts.h"
+#include "AliHFEpid.h"
+#include "AliHFEpidBase.h"
+#include "AliHFEpidQAmanager.h"
+#include "AliHFEtools.h"
+#include "AliCFContainer.h"
+#include "AliCFManager.h"
+
+#include "AliEventplane.h"
+#include "AliCentrality.h"
+
+ClassImp(AliAnalysisTaskElecV2)
+//________________________________________________________________________
+AliAnalysisTaskElecV2::AliAnalysisTaskElecV2(const char *name)
+ : AliAnalysisTaskSE(name)
+ ,fESD(0)
+ ,fOutputList(0)
+ ,fTrackCuts(0)
+ ,fCuts(0)
+ ,fIdentifiedAsOutInz(kFALSE)
+ ,fPassTheEventCut(kFALSE)
+ ,fRejectKinkMother(kFALSE)
+ ,fVz(0.0)
+ ,fCFM(0)
+ ,fPID(0)
+ ,fPIDqa(0)
+ ,fOpeningAngleCut(0.1)
+ ,fInvmassCut(0.01)
+ ,fNoEvents(0)
+ ,fTrkpt(0)
+ ,fTrkEovPBef(0)
+ ,fTrkEovPAft(0)
+ ,fdEdxBef(0)
+ ,fdEdxAft(0)
+ ,fInvmassLS(0)
+ ,fInvmassULS(0)
+ ,fOpeningAngleLS(0)
+ ,fOpeningAngleULS(0)
+ ,fPhotoElecPt(0)
+ ,fSemiInclElecPt(0)
+ ,fTrackPtBefTrkCuts(0)
+ ,fTrackPtAftTrkCuts(0)
+ ,fTPCnsigma(0)
+ ,fCent(0)
+ ,fTPCsubEPres(0)
+ ,fEPres(0)
+ ,fCorr(0)
+ ,feTPCV2(0)
+ ,feV2(0)
+ ,fphoteV2(0)
+ ,fChargPartV2(0)
+{
+ //Named constructor
+
+ fPID = new AliHFEpid("hfePid");
+ fTrackCuts = new AliESDtrackCuts();
+
+ // Define input and output slots here
+ // Input slot #0 works with a TChain
+ DefineInput(0, TChain::Class());
+ // Output slot #0 id reserved by the base class for AOD
+ // Output slot #1 writes into a TH1 container
+ // DefineOutput(1, TH1I::Class());
+ DefineOutput(1, TList::Class());
+ // DefineOutput(3, TTree::Class());
+}
+
+//________________________________________________________________________
+AliAnalysisTaskElecV2::AliAnalysisTaskElecV2()
+ : AliAnalysisTaskSE("DefaultAnalysis_AliAnalysisElecHadCorrel")
+ ,fESD(0)
+ ,fOutputList(0)
+ ,fTrackCuts(0)
+ ,fCuts(0)
+ ,fIdentifiedAsOutInz(kFALSE)
+ ,fPassTheEventCut(kFALSE)
+ ,fRejectKinkMother(kFALSE)
+ ,fVz(0.0)
+ ,fCFM(0)
+ ,fPID(0)
+ ,fPIDqa(0)
+ ,fOpeningAngleCut(0.1)
+ ,fInvmassCut(0.01)
+ ,fNoEvents(0)
+ ,fTrkpt(0)
+ ,fTrkEovPBef(0)
+ ,fTrkEovPAft(0)
+ ,fdEdxBef(0)
+ ,fdEdxAft(0)
+ ,fInvmassLS(0)
+ ,fInvmassULS(0)
+ ,fOpeningAngleLS(0)
+ ,fOpeningAngleULS(0)
+ ,fPhotoElecPt(0)
+ ,fSemiInclElecPt(0)
+ ,fTrackPtBefTrkCuts(0)
+ ,fTrackPtAftTrkCuts(0)
+ ,fTPCnsigma(0)
+ ,fCent(0)
+ ,fTPCsubEPres(0)
+ ,fEPres(0)
+ ,fCorr(0)
+ ,feTPCV2(0)
+ ,feV2(0)
+ ,fphoteV2(0)
+ ,fChargPartV2(0)
+{
+ //Default constructor
+ fPID = new AliHFEpid("hfePid");
+
+ fTrackCuts = new AliESDtrackCuts();
+
+ // Constructor
+ // Define input and output slots here
+ // Input slot #0 works with a TChain
+ DefineInput(0, TChain::Class());
+ // Output slot #0 id reserved by the base class for AOD
+ // Output slot #1 writes into a TH1 container
+ // DefineOutput(1, TH1I::Class());
+ DefineOutput(1, TList::Class());
+ //DefineOutput(3, TTree::Class());
+}
+//_________________________________________
+
+AliAnalysisTaskElecV2::~AliAnalysisTaskElecV2()
+{
+ //Destructor
+
+ delete fOutputList;
+ delete fPID;
+ delete fCFM;
+ delete fPIDqa;
+ delete fTrackCuts;
+}
+//_________________________________________
+
+void AliAnalysisTaskElecV2::UserExec(Option_t*)
+{
+ //Main loop
+ //Called for each event
+
+ // create pointer to event
+ fESD = dynamic_cast<AliESDEvent*>(InputEvent());
+ if (!fESD) {
+ printf("ERROR: fESD not available\n");
+ return;
+ }
+
+ if(!fCuts){
+ AliError("HFE cuts not available");
+ return;
+ }
+
+ if(!fPID->IsInitialized()){
+ // Initialize PID with the given run number
+ AliWarning("PID not initialised, get from Run no");
+ fPID->InitializePID(fESD->GetRunNumber());
+ }
+
+
+ Int_t fNOtrks = fESD->GetNumberOfTracks();
+ const AliESDVertex *pVtx = fESD->GetPrimaryVertex();
+
+ Double_t pVtxZ = -999;
+ pVtxZ = pVtx->GetZ();
+
+ if(TMath::Abs(pVtxZ)>10) return;
+ fNoEvents->Fill(0);
+
+ if(fNOtrks<2) return;
+
+ AliPIDResponse *pidResponse = fInputHandler->GetPIDResponse();
+ if(!pidResponse){
+ AliDebug(1, "Using default PID Response");
+ pidResponse = AliHFEtools::GetDefaultPID(kFALSE, fInputEvent->IsA() == AliAODEvent::Class());
+ }
+
+ fPID->SetPIDResponse(pidResponse);
+
+ fCFM->SetRecEventInfo(fESD);
+
+ Float_t cent = -1.;
+ AliCentrality *centrality = fESD->GetCentrality();
+ cent = centrality->GetCentralityPercentile("V0M");
+ fCent->Fill(cent);
+
+ if(cent>90.) return;
+
+ //Event planes
+
+ Double_t evPlaneV0A = TVector2::Phi_0_2pi(fESD->GetEventplane()->GetEventplane("V0A",fESD,2));
+ if(evPlaneV0A > TMath::Pi()) evPlaneV0A = evPlaneV0A - TMath::Pi();
+
+ Double_t evPlaneV0C = TVector2::Phi_0_2pi(fESD->GetEventplane()->GetEventplane("V0C",fESD,2));
+ if(evPlaneV0C > TMath::Pi()) evPlaneV0C = evPlaneV0C - TMath::Pi();
+
+ AliEventplane* esdTPCep = fESD->GetEventplane();
+ TVector2 *standardQ = esdTPCep->GetQVector();
+ Double_t qx = -999., qy = -999.;
+ if(standardQ)
+ {
+ qx = standardQ->X();
+ qy = standardQ->Y();
+ }
+ TVector2 qVectorfortrack;
+ qVectorfortrack.Set(qx,qy);
+ Float_t evPlaneTPC = TVector2::Phi_0_2pi(qVectorfortrack.Phi())/2.;
+
+ TVector2 *qsub1a = esdTPCep->GetQsub1();
+ TVector2 *qsub2a = esdTPCep->GetQsub2();
+ Double_t evPlaneResTPC = -999.;
+ if(qsub1a && qsub2a)
+ {
+ evPlaneResTPC = TMath::Cos(2.*TVector2::Phi_0_2pi(qsub1a->Phi()/2.- qsub2a->Phi()/2.));
+ }
+
+ fTPCsubEPres->Fill(evPlaneResTPC,cent);
+
+ Double_t evPlaneRes[4]={GetCos2DeltaPhi(evPlaneV0A,evPlaneV0C),GetCos2DeltaPhi(evPlaneV0A,evPlaneTPC),GetCos2DeltaPhi(evPlaneV0C,evPlaneTPC),cent};
+ fEPres->Fill(evPlaneRes);
+
+ // Track loop
+ for (Int_t iTracks = 0; iTracks < fESD->GetNumberOfTracks(); iTracks++) {
+ AliESDtrack* track = fESD->GetTrack(iTracks);
+ if (!track) {
+ printf("ERROR: Could not receive track %d\n", iTracks);
+ continue;
+ }
+
+ if(TMath::Abs(track->Eta())>0.7) continue;
+
+ fTrackPtBefTrkCuts->Fill(track->Pt());
+ // RecKine: ITSTPC cuts
+ if(!ProcessCutStep(AliHFEcuts::kStepRecKineITSTPC, track)) continue;
+
+ //RecKink
+ if(fRejectKinkMother) { // Quick and dirty fix to reject both kink mothers and daughters
+ if(track->GetKinkIndex(0) != 0) continue;
+ }
+
+ // RecPrim
+ if(!ProcessCutStep(AliHFEcuts::kStepRecPrim, track)) continue;
+
+ // HFEcuts: ITS layers cuts
+ if(!ProcessCutStep(AliHFEcuts::kStepHFEcutsITS, track)) continue;
+
+ // HFE cuts: TPC PID cleanup
+ if(!ProcessCutStep(AliHFEcuts::kStepHFEcutsTPC, track)) continue;
+
+ fTrackPtAftTrkCuts->Fill(track->Pt());
+
+ Double_t clsE = -999., p = -999., EovP=-999., pt = -999., dEdx=-999., fTPCnSigma=0, phi=-999.;
+
+ // Track extrapolation
+
+ pt = track->Pt();
+ fTrkpt->Fill(pt);
+
+ Int_t clsId = track->GetEMCALcluster();
+ if (clsId>0){
+ AliESDCaloCluster *cluster = fESD->GetCaloCluster(clsId);
+ if(cluster && cluster->IsEMCAL()){
+ clsE = cluster->E();
+ }
+ }
+
+ p = track->P();
+ phi = track->Phi();
+ dEdx = track->GetTPCsignal();
+ EovP = clsE/p;
+ fTPCnSigma = fPID->GetPIDResponse() ? fPID->GetPIDResponse()->NumberOfSigmasTPC(track, AliPID::kElectron) : 1000;
+ fdEdxBef->Fill(p,dEdx);
+ fTPCnsigma->Fill(p,fTPCnSigma);
+
+ Double_t corr[7]={fTPCnSigma,cent,pt,EovP,GetDeltaPhi(phi,evPlaneTPC),GetDeltaPhi(phi,evPlaneV0A),GetDeltaPhi(phi,evPlaneV0C)};
+ fCorr->Fill(corr);
+
+ if(fTPCnSigma >= 1.5 && fTPCnSigma <= 3)fTrkEovPBef->Fill(pt,EovP);
+ Int_t pidpassed = 1;
+
+ //--- track accepted
+ AliHFEpidObject hfetrack;
+ hfetrack.SetAnalysisType(AliHFEpidObject::kESDanalysis);
+ hfetrack.SetRecTrack(track);
+ hfetrack.SetPbPb();
+ if(!fPID->IsSelected(&hfetrack, NULL, "", fPIDqa)) pidpassed = 0;
+
+ Double_t corrV2[6]={cent,pt,EovP,GetCos2DeltaPhi(phi,evPlaneTPC),GetCos2DeltaPhi(phi,evPlaneV0A),GetCos2DeltaPhi(phi,evPlaneV0C)};
+ fChargPartV2->Fill(corrV2);
+
+ Double_t qX = standardQ->X() - esdTPCep->GetQContributionX(track);
+ Double_t qY = standardQ->Y() - esdTPCep->GetQContributionY(track);
+ TVector2 newQVectorfortrack;
+ newQVectorfortrack.Set(qX,qY);
+ Double_t corrV2TPC = -999.;
+ corrV2TPC = TVector2::Phi_0_2pi(newQVectorfortrack.Phi())/2;
+
+ Double_t correctedV2[5]={cent,pt,GetCos2DeltaPhi(phi,corrV2TPC),GetCos2DeltaPhi(phi,evPlaneV0A),GetCos2DeltaPhi(phi,evPlaneV0C)};
+
+ if(fTPCnSigma >= -0.5) feTPCV2->Fill(correctedV2);
+
+ if(pidpassed==0) continue;
+
+ feV2->Fill(correctedV2);
+
+ fTrkEovPAft->Fill(pt,EovP);
+ fdEdxAft->Fill(p,dEdx);
+
+ Bool_t fFlagPhotonicElec = kFALSE;
+ SelectPhotonicElectron(iTracks,track,fFlagPhotonicElec);
+
+ if(fFlagPhotonicElec){
+ fphoteV2->Fill(correctedV2);
+ fPhotoElecPt->Fill(pt);
+ }
+
+ if(!fFlagPhotonicElec) fSemiInclElecPt->Fill(pt);
+ }
+ PostData(1, fOutputList);
+}
+//_________________________________________
+void AliAnalysisTaskElecV2::UserCreateOutputObjects()
+{
+ //--------Initialize PID
+ fPID->SetHasMCData(kFALSE);
+ if(!fPID->GetNumberOfPIDdetectors())
+ {
+ fPID->AddDetector("TPC", 0);
+ fPID->AddDetector("EMCAL", 1);
+ }
+
+ fPID->SortDetectors();
+ fPIDqa = new AliHFEpidQAmanager();
+ fPIDqa->Initialize(fPID);
+
+ //--------Initialize correction Framework and Cuts
+ fCFM = new AliCFManager;
+ const Int_t kNcutSteps = AliHFEcuts::kNcutStepsMCTrack + AliHFEcuts::kNcutStepsRecTrack + AliHFEcuts::kNcutStepsDETrack;
+ fCFM->SetNStepParticle(kNcutSteps);
+ for(Int_t istep = 0; istep < kNcutSteps; istep++)
+ fCFM->SetParticleCutsList(istep, NULL);
+
+ if(!fCuts){
+ AliWarning("Cuts not available. Default cuts will be used");
+ fCuts = new AliHFEcuts;
+ fCuts->CreateStandardCuts();
+ }
+ fCuts->Initialize(fCFM);
+
+ //---------Output Tlist
+ fOutputList = new TList();
+ fOutputList->SetOwner();
+ fOutputList->Add(fPIDqa->MakeList("PIDQA"));
+
+ fNoEvents = new TH1F("fNoEvents","",1,0,1) ;
+ fOutputList->Add(fNoEvents);
+
+ fTrkpt = new TH1F("fTrkpt","track pt",100,0,50);
+ fOutputList->Add(fTrkpt);
+
+ fTrackPtBefTrkCuts = new TH1F("fTrackPtBefTrkCuts","track pt before track cuts",100,0,50);
+ fOutputList->Add(fTrackPtBefTrkCuts);
+
+ fTrackPtAftTrkCuts = new TH1F("fTrackPtAftTrkCuts","track pt after track cuts",100,0,50);
+ fOutputList->Add(fTrackPtAftTrkCuts);
+
+ fTPCnsigma = new TH2F("fTPCnsigma", "TPC - n sigma",100,0,50,200,-10,10);
+ fOutputList->Add(fTPCnsigma);
+
+ fTrkEovPBef = new TH2F("fTrkEovPBef","track E/p before HFE pid",100,0,50,100,0,2);
+ fOutputList->Add(fTrkEovPBef);
+
+ fTrkEovPAft = new TH2F("fTrkEovPAft","track E/p after HFE pid",100,0,50,100,0,2);
+ fOutputList->Add(fTrkEovPAft);
+
+ fdEdxBef = new TH2F("fdEdxBef","track dEdx vs p before HFE pid",100,0,50,150,0,150);
+ fOutputList->Add(fdEdxBef);
+
+ fdEdxAft = new TH2F("fdEdxAft","track dEdx vs p after HFE pid",100,0,50,150,0,150);
+ fOutputList->Add(fdEdxAft);
+
+ fInvmassLS = new TH1F("fInvmassLS", "Inv mass of LS (e,e); mass(GeV/c^2); counts;", 500,0,0.5);
+ fOutputList->Add(fInvmassLS);
+
+ fInvmassULS = new TH1F("fInvmassULS", "Inv mass of ULS (e,e); mass(GeV/c^2); counts;", 500,0,0.5);
+ fOutputList->Add(fInvmassULS);
+
+ fOpeningAngleLS = new TH1F("fOpeningAngleLS","Opening angle for LS pairs",100,0,1);
+ fOutputList->Add(fOpeningAngleLS);
+
+ fOpeningAngleULS = new TH1F("fOpeningAngleULS","Opening angle for ULS pairs",100,0,1);
+ fOutputList->Add(fOpeningAngleULS);
+
+ fPhotoElecPt = new TH1F("fPhotoElecPt", "photonic electron pt",100,0,50);
+ fOutputList->Add(fPhotoElecPt);
+
+ fSemiInclElecPt = new TH1F("fSemiInclElecPt", "Semi-inclusive electron pt",100,0,50);
+ fOutputList->Add(fSemiInclElecPt);
+
+ fCent = new TH1F("fCent","Centrality",100,0,100) ;
+ fOutputList->Add(fCent);
+
+ fTPCsubEPres = new TH2F("fTPCsubEPres","TPC subevent plane resolution",100,-1,1,90,0,90);
+ fOutputList->Add(fTPCsubEPres);
+
+ Int_t binsv1[4]={100,100,100,90}; // V0A-V0C, V0A-TPC, V0C-TPC, cent
+ Double_t xminv1[4]={-1,-1,-1,0};
+ Double_t xmaxv1[4]={1,1,1,90};
+ fEPres = new THnSparseD ("fEPres","EP resolution",4,binsv1,xminv1,xmaxv1);
+ fOutputList->Add(fEPres);
+
+ Int_t binsv2[7]={100,90,100,100,100,100,100}; // fTPCnSigma,cent, pt, EovP, TPCdeltaPhi, V0AdeltaPhi, V0CdeltaPhi
+ Double_t xminv2[7]={-3.5,0,0,0,0,0,0};
+ Double_t xmaxv2[7]={3.5,90,50,3,TMath::Pi(),TMath::Pi(),TMath::Pi()};
+ fCorr = new THnSparseD ("fCorr","Correlations",7,binsv2,xminv2,xmaxv2);
+ fOutputList->Add(fCorr);
+
+ Int_t binsv3[5]={90,100,100,100,100}; // cent, pt, TPCcos2DeltaPhi, V0Acos2DeltaPhi, V0Ccos2DeltaPhi
+ Double_t xminv3[5]={0,0,-1,-1,-1};
+ Double_t xmaxv3[5]={90,50,1,1,1};
+ feV2 = new THnSparseD ("feV2","inclusive electron v2",5,binsv3,xminv3,xmaxv3);
+ fOutputList->Add(feV2);
+
+ Int_t binsv4[5]={90,100,100,100,100}; // cent, pt, TPCdeltaPhi, V0AdeltaPhi, V0CdeltaPhi
+ Double_t xminv4[5]={0,0,-1,-1,-1};
+ Double_t xmaxv4[5]={90,50,1,1,1};
+ fphoteV2 = new THnSparseD ("fphoteV2","photonic electron v2",5,binsv4,xminv4,xmaxv4);
+ fOutputList->Add(fphoteV2);
+
+ Int_t binsv5[6]={90,100,100,100,100,100}; // cent, pt, EovP, TPCdeltaPhi, V0AdeltaPhi, V0CdeltaPhi
+ Double_t xminv5[6]={0,0,0,-1,-1,-1};
+ Double_t xmaxv5[6]={90,50,3,1,1,1};
+ fChargPartV2 = new THnSparseD ("fChargPartV2","Charged particle v2",6,binsv5,xminv5,xmaxv5);
+ fOutputList->Add(fChargPartV2);
+
+ Int_t binsv6[5]={90,100,100,100,100}; // cent, pt, TPCdeltaPhi, V0AdeltaPhi, V0CdeltaPhi
+ Double_t xminv6[5]={0,0,-1,-1,-1};
+ Double_t xmaxv6[5]={90,50,1,1,1};
+ feTPCV2 = new THnSparseD ("feTPCV2","inclusive electron v2 (TPC)",5,binsv6,xminv6,xmaxv6);
+ fOutputList->Add(feTPCV2);
+
+ PostData(1,fOutputList);
+}
+
+//________________________________________________________________________
+void AliAnalysisTaskElecV2::Terminate(Option_t *)
+{
+ // Info("Terminate");
+ AliAnalysisTaskSE::Terminate();
+}
+
+//________________________________________________________________________
+Bool_t AliAnalysisTaskElecV2::ProcessCutStep(Int_t cutStep, AliVParticle *track)
+{
+ // Check single track cuts for a given cut step
+ const Int_t kMCOffset = AliHFEcuts::kNcutStepsMCTrack;
+ if(!fCFM->CheckParticleCuts(cutStep + kMCOffset, track)) return kFALSE;
+ return kTRUE;
+}
+//_________________________________________
+void AliAnalysisTaskElecV2::SelectPhotonicElectron(Int_t itrack, AliESDtrack *track, Bool_t &fFlagPhotonicElec)
+{
+ //Identify non-heavy flavour electrons using Invariant mass method
+
+ fTrackCuts->SetAcceptKinkDaughters(kFALSE);
+ fTrackCuts->SetRequireTPCRefit(kTRUE);
+ fTrackCuts->SetEtaRange(-0.7,0.7);
+ fTrackCuts->SetRequireSigmaToVertex(kTRUE);
+ fTrackCuts->SetMaxChi2PerClusterTPC(3.5);
+ fTrackCuts->SetMinNClustersTPC(100);
+
+ const AliESDVertex *pVtx = fESD->GetPrimaryVertex();
+
+ Bool_t flagPhotonicElec = kFALSE;
+
+ for(Int_t jTracks = itrack+1; jTracks<fESD->GetNumberOfTracks(); jTracks++){
+ AliESDtrack* trackAsso = fESD->GetTrack(jTracks);
+ if (!trackAsso) {
+ printf("ERROR: Could not receive track %d\n", jTracks);
+ continue;
+ }
+
+ Double_t dEdxAsso = -999., ptAsso=-999., openingAngle = -999.;
+ Double_t mass=999., width = -999;
+ Bool_t fFlagLS=kFALSE, fFlagULS=kFALSE;
+
+ dEdxAsso = trackAsso->GetTPCsignal();
+ ptAsso = trackAsso->Pt();
+ Int_t chargeAsso = trackAsso->Charge();
+ Int_t charge = track->Charge();
+
+ if(ptAsso <0.3) continue;
+ if(!fTrackCuts->AcceptTrack(trackAsso)) continue;
+ if(dEdxAsso <70 || dEdxAsso>100) continue; //11a pass1
+
+ Int_t fPDGe1 = 11; Int_t fPDGe2 = 11;
+ if(charge>0) fPDGe1 = -11;
+ if(chargeAsso>0) fPDGe2 = -11;
+
+ if(charge == chargeAsso) fFlagLS = kTRUE;
+ if(charge != chargeAsso) fFlagULS = kTRUE;
+
+ AliKFParticle ge1(*track, fPDGe1);
+ AliKFParticle ge2(*trackAsso, fPDGe2);
+ AliKFParticle recg(ge1, ge2);
+
+ if(recg.GetNDF()<1) continue;
+ Double_t chi2recg = recg.GetChi2()/recg.GetNDF();
+ if(TMath::Sqrt(TMath::Abs(chi2recg))>3.) continue;
+
+ AliKFVertex primV(*pVtx);
+ primV += recg;
+ recg.SetProductionVertex(primV);
+
+ recg.SetMassConstraint(0,0.0001);
+
+ openingAngle = ge1.GetAngle(ge2);
+ if(fFlagLS) fOpeningAngleLS->Fill(openingAngle);
+ if(fFlagULS) fOpeningAngleULS->Fill(openingAngle);
+
+ if(openingAngle > fOpeningAngleCut) continue;
+
+ recg.GetMass(mass,width);
+
+ if(fFlagLS) fInvmassLS->Fill(mass);
+ if(fFlagULS) fInvmassULS->Fill(mass);
+
+ if(mass<fInvmassCut && fFlagULS && !flagPhotonicElec){
+ flagPhotonicElec = kTRUE;
+ }
+
+ }
+ fFlagPhotonicElec = flagPhotonicElec;
+
+}
+//_________________________________________
+Double_t AliAnalysisTaskElecV2::GetCos2DeltaPhi(Double_t phiA,Double_t phiB) const
+{
+ //Get cos[2(phi-psi_EP)] or cos[2(psi_subEP1 - psi_subEP2)]
+ Double_t dPhi = TVector2::Phi_0_2pi(phiA - phiB);
+ if(dPhi > TMath::Pi()) dPhi = dPhi - TMath::Pi();
+ Double_t cos2DeltaPhi = TMath::Cos(2*dPhi);
+
+ return cos2DeltaPhi;
+}
+
+//_________________________________________
+Double_t AliAnalysisTaskElecV2::GetDeltaPhi(Double_t phiA,Double_t phiB) const
+{
+ //Get phi-psi_EP
+ Double_t dPhi = TVector2::Phi_0_2pi(phiA - phiB);
+ if(dPhi > TMath::Pi()) dPhi = dPhi - TMath::Pi();
+
+ return dPhi;
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff