+++ /dev/null
-/**************************************************************************
- * Author: Panos Christakoglou. *
- * 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. *
- **************************************************************************/
-
-/* $Id: AliProtonAnalysisBase.cxx 31056 2009-02-16 14:31:41Z pchrist $ */
-
-//-----------------------------------------------------------------
-// AliProtonAnalysisBase class
-// This is the class to deal with the proton analysis
-// Origin: Panos Christakoglou | Panos.Christakoglou@cern.ch
-//-----------------------------------------------------------------
-#include <Riostream.h>
-#include <TCanvas.h>
-#include <TLatex.h>
-#include <TF1.h>
-#include <TList.h>
-#include <TH1F.h>
-
-#include <AliExternalTrackParam.h>
-#include <AliESDEvent.h>
-#include <AliPID.h>
-#include <AliVertexerTracks.h>
-#include <AliESDpid.h>
-#include <AliTPCPIDResponse.h>
-class AliLog;
-class AliESDVertex;
-
-#include "AliProtonAnalysisBase.h"
-
-ClassImp(AliProtonAnalysisBase)
-
-//____________________________________________________________________//
-AliProtonAnalysisBase::AliProtonAnalysisBase() :
- TObject(), fProtonAnalysisLevel("ESD"), fAnalysisMC(kFALSE),
- fTriggerMode(kMB2), kUseOnlineTrigger(kFALSE), kUseOfflineTrigger(kFALSE),
- fPhysicsSelection(0),
- fProtonAnalysisMode(kTPC), fProtonPIDMode(kBayesian),
- fAnalysisEtaMode(kFALSE),
- fRunQAAnalysis(kFALSE),
- fVxMax(100.), fVyMax(100.), fVzMax(100.), fMinNumOfContributors(0),
- fNBinsX(0), fMinX(0.), fMaxX(0.),
- fNBinsY(0), fMinY(0.), fMaxY(0.),
- fMinTPCClusters(0), fMinITSClusters(0),
- fMaxChi2PerTPCCluster(0.), fMaxChi2PerITSCluster(0.),
- fMaxCov11(0.), fMaxCov22(0.), fMaxCov33(0.), fMaxCov44(0.), fMaxCov55(0.),
- fMaxSigmaToVertex(0.), fMaxSigmaToVertexTPC(0.),
- fMaxDCAXY(0.), fMaxDCAXYTPC(0.),
- fMaxDCAZ(0.), fMaxDCAZTPC(0.),
- fMaxDCA3D(0.), fMaxDCA3DTPC(0.),
- fMaxConstrainChi2(0.), fMinTPCdEdxPoints(0),
- fMinTPCClustersFlag(kFALSE), fMinITSClustersFlag(kFALSE),
- fMaxChi2PerTPCClusterFlag(kFALSE), fMaxChi2PerITSClusterFlag(kFALSE),
- fMaxCov11Flag(kFALSE), fMaxCov22Flag(kFALSE),
- fMaxCov33Flag(kFALSE), fMaxCov44Flag(kFALSE), fMaxCov55Flag(kFALSE),
- fMaxSigmaToVertexFlag(kFALSE), fMaxSigmaToVertexTPCFlag(kFALSE),
- fMaxDCAXYFlag(kFALSE), fMaxDCAXYTPCFlag(kFALSE),
- fMaxDCAZFlag(kFALSE), fMaxDCAZTPCFlag(kFALSE),
- fMaxDCA3DFlag(kFALSE), fMaxDCA3DTPCFlag(kFALSE),
- fMaxConstrainChi2Flag(kFALSE),
- fITSRefitFlag(kFALSE), fTPCRefitFlag(kFALSE),
- fESDpidFlag(kFALSE), fTPCpidFlag(kFALSE), fTOFpidFlag(kFALSE),
- fPointOnSPDLayersFlag(0), fPointOnSDDLayersFlag(0), fPointOnSSDLayersFlag(0),
- fPointOnITSLayer1Flag(0), fPointOnITSLayer2Flag(0),
- fPointOnITSLayer3Flag(0), fPointOnITSLayer4Flag(0),
- fPointOnITSLayer5Flag(0), fPointOnITSLayer6Flag(0),
- fMinTPCdEdxPointsFlag(kFALSE),
- fPtDependentDcaXY(0), fPtDependentDcaXYFlag(kFALSE), fNSigmaDCAXY(0),
- fFunctionProbabilityFlag(kFALSE),
- fNSigma(0), fNRatio(0.),
- fElectronFunction(0), fMuonFunction(0),
- fPionFunction(0), fKaonFunction(0), fProtonFunction(0),
- fDebugMode(kFALSE), fListVertexQA(0) {
- //Default constructor
- for(Int_t i = 0; i < 5; i++) fPartFrac[i] = 0.0;
- /*for(Int_t i = 0; i < 24; i++) {
- fdEdxMean[i] = 0.0;
- fdEdxSigma[i] = 0.0;
- }*/
-
- fListVertexQA = new TList();
- fListVertexQA->SetName("fListVertexQA");
- TH1F *gHistVx = new TH1F("gHistVx",
- "Vx distribution;V_{x} [cm];Entries",
- 100,-5.,5.);
- gHistVx->SetFillColor(kRed-2);
- fListVertexQA->Add(gHistVx);
- TH1F *gHistVxAccepted = new TH1F("gHistVxaccepted",
- "Vx distribution;V_{x} [cm];Entries",
- 100,-5.,5.);
- fListVertexQA->Add(gHistVxAccepted);
- TH1F *gHistVy = new TH1F("gHistVy",
- "Vy distribution;V_{y} [cm];Entries",
- 100,-5.,5.);
- gHistVy->SetFillColor(kRed-2);
- fListVertexQA->Add(gHistVy);
- TH1F *gHistVyAccepted = new TH1F("gHistVyaccepted",
- "Vy distribution;V_{y} [cm];Entries",
- 100,-5.,5.);
- fListVertexQA->Add(gHistVyAccepted);
- TH1F *gHistVz = new TH1F("gHistVz",
- "Vz distribution;V_{z} [cm];Entries",
- 100,-25.,25.);
- gHistVz->SetFillColor(kRed-2);
- fListVertexQA->Add(gHistVz);
- TH1F *gHistVzAccepted = new TH1F("gHistVzaccepted",
- "Vz distribution;V_{z} [cm];Entries",
- 100,-25.,25.);
- fListVertexQA->Add(gHistVzAccepted);
-
- TH1F *gHistNumberOfContributors = new TH1F("gHistNumberOfContributors",
- "Number of contributors;N_{contr.};Entries",
- 100,0.,100.);
- fListVertexQA->Add(gHistNumberOfContributors);
-
-
-}
-
-//____________________________________________________________________//
-AliProtonAnalysisBase::~AliProtonAnalysisBase() {
- //Default destructor
- if(fElectronFunction) delete fElectronFunction;
- if(fMuonFunction) delete fMuonFunction;
- if(fPionFunction) delete fPionFunction;
- if(fKaonFunction) delete fKaonFunction;
- if(fProtonFunction) delete fProtonFunction;
- if(fListVertexQA) delete fListVertexQA;
- if(fPtDependentDcaXY) delete fPtDependentDcaXY;
- if(fPhysicsSelection) delete fPhysicsSelection;
-}
-
-//____________________________________________________________________//
-Double_t AliProtonAnalysisBase::GetParticleFraction(Int_t i, Double_t p) {
- //Return the a priori probs
- Double_t partFrac=0;
- if(fFunctionProbabilityFlag) {
- if(i == 0) partFrac = fElectronFunction->Eval(p);
- if(i == 1) partFrac = fMuonFunction->Eval(p);
- if(i == 2) partFrac = fPionFunction->Eval(p);
- if(i == 3) partFrac = fKaonFunction->Eval(p);
- if(i == 4) partFrac = fProtonFunction->Eval(p);
- }
- else partFrac = fPartFrac[i];
-
- return partFrac;
-}
-
-//____________________________________________________________________//
-Bool_t AliProtonAnalysisBase::IsInPhaseSpace(AliESDtrack* const track) {
- // Checks if the track is outside the analyzed y-Pt phase space
- Double_t gP = 0.0, gPt = 0.0, gPx = 0.0, gPy = 0.0, gPz = 0.0;
- Double_t eta = 0.0;
-
- if((fProtonAnalysisMode == kTPC) || (fProtonAnalysisMode == kHybrid) || (fProtonAnalysisMode == kFullHybrid)) {
- AliExternalTrackParam *tpcTrack = (AliExternalTrackParam *)track->GetTPCInnerParam();
- if(!tpcTrack) {
- gP = 0.0; gPt = 0.0; gPx = 0.0; gPy = 0.0; gPz = 0.0; eta = -10.0;
- }
- else {
- gP = tpcTrack->P();
- gPt = tpcTrack->Pt();
- gPx = tpcTrack->Px();
- gPy = tpcTrack->Py();
- gPz = tpcTrack->Pz();
- eta = tpcTrack->Eta();
- }
- }//standalone TPC or Hybrid TPC approaches
- else {
- gP = track->P();
- gPt = track->Pt();
- gPx = track->Px();
- gPy = track->Py();
- gPz = track->Pz();
- eta = track->Eta();
- }
-
- if((gPt < fMinY) || (gPt > fMaxY)) {
- if(fDebugMode)
- Printf("IsInPhaseSpace: Track rejected because it has a Pt value of %lf (accepted interval: %lf - %lf)",gPt,fMinY,fMaxY);
- return kFALSE;
- }
- if((gP < fMinY) || (gP > fMaxY)) {
- if(fDebugMode)
- Printf("IsInPhaseSpace: Track rejected because it has a P value of %lf (accepted interval: %lf - %lf)",gP,fMinY,fMaxY);
- return kFALSE;
- }
- if(fAnalysisEtaMode) {
- if((eta < fMinX) || (eta > fMaxX)) {
- if(fDebugMode)
- Printf("IsInPhaseSpace: Track rejected because it has an eta value of %lf (accepted interval: %lf - %lf)",eta,fMinX,fMaxX);
- return kFALSE;
- }
- }
- else {
- if((Rapidity(gPx,gPy,gPz) < fMinX) || (Rapidity(gPx,gPy,gPz) > fMaxX)) {
- if(fDebugMode)
- Printf("IsInPhaseSpace: Track rejected because it has a y value of %lf (accepted interval: %lf - %lf)",Rapidity(gPx,gPy,gPz),fMinX,fMaxX);
- return kFALSE;
- }
- }
-
- return kTRUE;
-}
-
-//____________________________________________________________________//
-Bool_t AliProtonAnalysisBase::IsAccepted(AliESDtrack* track) {
- // Checks if the track is excluded from the cuts
- //Int_t fIdxInt[200];
- //Int_t nClustersITS = track->GetITSclusters(fIdxInt);
- //Int_t nClustersTPC = track->GetTPCclusters(fIdxInt);
- Int_t nClustersITS = track->GetITSclusters(0x0);
- Int_t nClustersTPC = track->GetTPCclusters(0x0);
-
- Float_t chi2PerClusterITS = -1;
- if (nClustersITS!=0)
- chi2PerClusterITS = track->GetITSchi2()/Float_t(nClustersITS);
- Float_t chi2PerClusterTPC = -1;
- if (nClustersTPC!=0)
- chi2PerClusterTPC = track->GetTPCchi2()/Float_t(nClustersTPC);
-
- Double_t extCov[15];
- track->GetExternalCovariance(extCov);
-
- if(fPointOnSPDLayersFlag) {
- if((!track->HasPointOnITSLayer(0))&&(!track->HasPointOnITSLayer(1))) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on either SPD layers");
- return kFALSE;
- }
- }
- if(fPointOnSDDLayersFlag) {
- if((!track->HasPointOnITSLayer(2))&&(!track->HasPointOnITSLayer(3))) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on either SDD layers");
- return kFALSE;
- }
- }
- if(fPointOnSSDLayersFlag) {
- if((!track->HasPointOnITSLayer(4))&&(!track->HasPointOnITSLayer(5))) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on either SSD layers");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer1Flag) {
- if(!track->HasPointOnITSLayer(0)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 1st ITS layer");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer2Flag) {
- if(!track->HasPointOnITSLayer(1)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 2nd ITS layer");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer3Flag) {
- if(!track->HasPointOnITSLayer(2)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 3rd ITS layer");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer4Flag) {
- if(!track->HasPointOnITSLayer(3)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 4th ITS layer");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer5Flag) {
- if(!track->HasPointOnITSLayer(4)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 5th ITS layer");
- return kFALSE;
- }
- }
- if(fPointOnITSLayer6Flag) {
- if(!track->HasPointOnITSLayer(5)) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it doesn't have a point on the 6th ITS layer");
- return kFALSE;
- }
- }
- if(fMinITSClustersFlag) {
- if(nClustersITS < fMinITSClusters) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has %d ITS points (min. requested: %d)",nClustersITS,fMinITSClusters);
- return kFALSE;
- }
- }
- if(fMaxChi2PerITSClusterFlag) {
- if(chi2PerClusterITS > fMaxChi2PerITSCluster) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a chi2 per ITS cluster %lf (max. requested: %lf)",chi2PerClusterITS,fMaxChi2PerITSCluster);
- return kFALSE;
- }
- }
- if(fMinTPCClustersFlag) {
- if(nClustersTPC < fMinTPCClusters) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has %d TPC clusters (min. requested: %d)",nClustersTPC,fMinTPCClusters);
- return kFALSE;
- }
- }
- if(fMaxChi2PerTPCClusterFlag) {
- if(chi2PerClusterTPC > fMaxChi2PerTPCCluster) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a chi2 per TPC cluster %lf (max. requested: %lf)",chi2PerClusterTPC,fMaxChi2PerTPCCluster);
- return kFALSE;
- }
- }
- if(fMaxCov11Flag) {
- if(extCov[0] > fMaxCov11) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a cov11 value of %lf (max. requested: %lf)",extCov[0],fMaxCov11);
- return kFALSE;
- }
- }
- if(fMaxCov22Flag) {
- if(extCov[2] > fMaxCov22) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a cov22 value of %lf (max. requested: %lf)",extCov[2],fMaxCov22);
- return kFALSE;
- }
- }
- if(fMaxCov33Flag) {
- if(extCov[5] > fMaxCov33) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a cov33 value of %lf (max. requested: %lf)",extCov[5],fMaxCov33);
- return kFALSE;
- }
- }
- if(fMaxCov44Flag) {
- if(extCov[9] > fMaxCov44) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a cov44 value of %lf (max. requested: %lf)",extCov[9],fMaxCov44);
- return kFALSE;
- }
- }
- if(fMaxCov55Flag) {
- if(extCov[14] > fMaxCov55) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has a cov55 value of %lf (max. requested: %lf)",extCov[14],fMaxCov55);
- return kFALSE;
- }
- }
- if(fMinTPCdEdxPointsFlag) {
- if(track->GetTPCsignalN() < fMinTPCdEdxPoints) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has %d TPC points for the calculation of the energy loss (min. requested: %d)",track->GetTPCsignalN(),fMinTPCdEdxPoints);
- return kFALSE;
- }
- }
- if(fITSRefitFlag) {
- if ((track->GetStatus() & AliESDtrack::kITSrefit) == 0) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has no ITS refit flag");
- return kFALSE;
- }
- }
- if(fTPCRefitFlag) {
- if ((track->GetStatus() & AliESDtrack::kTPCrefit) == 0) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has no TPC refit flag");
- return kFALSE;
- }
- }
- if(fESDpidFlag) {
- if ((track->GetStatus() & AliESDtrack::kESDpid) == 0) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has no ESD pid flag");
- return kFALSE;
- }
- }
- if(fTPCpidFlag) {
- if ((track->GetStatus() & AliESDtrack::kTPCpid) == 0) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has no TPC pid flag");
- return kFALSE;
- }
- }
- if(fTOFpidFlag) {
- if ((track->GetStatus() & AliESDtrack::kTOFpid) == 0) {
- if(fDebugMode)
- Printf("IsAccepted: Track rejected because it has no TOF pid flag");
- return kFALSE;
- }
- }
-
- return kTRUE;
-}
-
-//____________________________________________________________________//
-void AliProtonAnalysisBase::SetPtDependentDCAxy(Int_t nSigma,
- Double_t p0,
- Double_t p1,
- Double_t p2) {
- //Pt dependent dca cut in xy
- fNSigmaDCAXY = nSigma;
- fPtDependentDcaXY = new TF1("fPtDependentDcaXY","[0]+[1]/x^[2]",0.1,10.1);
- fPtDependentDcaXY->SetParameter(0,p0);
- fPtDependentDcaXY->SetParameter(1,p1);
- fPtDependentDcaXY->SetParameter(2,p2);
- fPtDependentDcaXYFlag = kTRUE;
-}
-
-//____________________________________________________________________//
-Bool_t AliProtonAnalysisBase::IsPrimary(AliESDEvent *esd,
- const AliESDVertex *vertex,
- AliESDtrack* track) {
- // Checks if the track is a primary-like candidate
- const Double_t kMicrometer2Centimeter = 0.0001;
- Double_t gPt = 0.0, gPx = 0.0, gPy = 0.0, gPz = 0.0;
- Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0}; //The impact parameters and their covariance.
- Double_t dca3D = 0.0;
- Float_t dcaXY = 0.0, dcaZ = 0.0;
-
- if((fProtonAnalysisMode == kTPC)||(fProtonAnalysisMode == kHybrid)) {
- AliExternalTrackParam *tpcTrack = (AliExternalTrackParam *)track->GetTPCInnerParam();
- if(!tpcTrack) {
- gPt = 0.0; gPx = 0.0; gPy = 0.0; gPz = 0.0;
- dca[0] = -100.; dca[1] = -100.; dca3D = -100.;
- cov[0] = -100.; cov[1] = -100.; cov[2] = -100.;
- }
- else {
- gPt = tpcTrack->Pt();
- gPx = tpcTrack->Px();
- gPy = tpcTrack->Py();
- gPz = tpcTrack->Pz();
- tpcTrack->PropagateToDCA(vertex,
- esd->GetMagneticField(),
- 100.,dca,cov);
- }
- }//standalone TPC or hybrid TPC approaches
- if(fProtonAnalysisMode == kFullHybrid) {
- AliExternalTrackParam *tpcTrack = (AliExternalTrackParam *)track->GetTPCInnerParam();
- AliExternalTrackParam cParam;
- if(!tpcTrack) {
- gPt = 0.0; gPx = 0.0; gPy = 0.0; gPz = 0.0;
- dca[0] = -100.; dca[1] = -100.; dca3D = -100.;
- cov[0] = -100.; cov[1] = -100.; cov[2] = -100.;
- }
- else {
- gPt = tpcTrack->Pt();
- gPx = tpcTrack->Px();
- gPy = tpcTrack->Py();
- gPz = tpcTrack->Pz();
- track->RelateToVertex(vertex,
- esd->GetMagneticField(),
- 100.,&cParam);
- track->GetImpactParameters(dcaXY,dcaZ);
- dca[0] = dcaXY; dca[1] = dcaZ;
- }
- }//standalone TPC or hybrid TPC approaches
- else {
- gPt = track->Pt();
- gPx = track->Px();
- gPy = track->Py();
- gPz = track->Pz();
- track->PropagateToDCA(vertex,
- esd->GetMagneticField(),
- 100.,dca,cov);
- }
- dca3D = TMath::Sqrt(TMath::Power(dca[0],2) +
- TMath::Power(dca[1],2));
-
- if(fMaxSigmaToVertexFlag) {
- if(GetSigmaToVertex(track) > fMaxSigmaToVertex) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a %lf sigmas to vertex (max. requested: %lf)",GetSigmaToVertex(track),fMaxSigmaToVertex);
- return kFALSE;
- }
- }
- if(fMaxSigmaToVertexTPCFlag) {
- if(GetSigmaToVertex(track) > fMaxSigmaToVertexTPC) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a %lf sigmas to vertex TPC (max. requested: %lf)",GetSigmaToVertex(track),fMaxSigmaToVertexTPC);
- return kFALSE;
- }
- }
- if(fMaxDCAXYFlag) {
- if(TMath::Abs(dca[0]) > fMaxDCAXY) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(xy) of %lf (max. requested: %lf)",TMath::Abs(dca[0]),fMaxDCAXY);
- return kFALSE;
- }
- }
- if(fMaxDCAXYTPCFlag) {
- if(TMath::Abs(dca[0]) > fMaxDCAXYTPC) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(xy) (TPC) of %lf (max. requested: %lf)",TMath::Abs(dca[0]),fMaxDCAXYTPC);
- return kFALSE;
- }
- }
- if(fMaxDCAZFlag) {
- if(TMath::Abs(dca[1]) > fMaxDCAZ) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(z) of %lf (max. requested: %lf)",TMath::Abs(dca[1]),fMaxDCAZ);
- return kFALSE;
- }
- }
- if(fMaxDCAZTPCFlag) {
- if(TMath::Abs(dca[1]) > fMaxDCAZTPC) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(z) (TPC) of %lf (max. requested: %lf)",TMath::Abs(dca[1]),fMaxDCAZTPC);
- return kFALSE;
- }
- }
- if(fMaxDCA3DFlag) {
- if(TMath::Abs(dca3D) > fMaxDCA3D) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(3D) of %lf (max. requested: %lf)",TMath::Abs(dca3D),fMaxDCA3D);
- return kFALSE;
- }
- }
- if(fMaxDCA3DTPCFlag) {
- if(TMath::Abs(dca3D) > fMaxDCA3DTPC) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of dca(3D) (TPC) of %lf (max. requested: %lf)",TMath::Abs(dca3D),fMaxDCA3DTPC);
- return kFALSE;
- }
- }
- if(fMaxConstrainChi2Flag) {
- if(track->GetConstrainedChi2() > 0)
- if(TMath::Log(track->GetConstrainedChi2()) > fMaxConstrainChi2) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of the constrained chi2 to the vertex of %lf (max. requested: %lf)",TMath::Log(track->GetConstrainedChi2()),fMaxConstrainChi2);
- return kFALSE;
- }
- }
- if(fPtDependentDcaXYFlag) {
- if(TMath::Abs(dca[0]) > kMicrometer2Centimeter*fNSigmaDCAXY*fPtDependentDcaXY->Eval(gPt)) {
- if(fDebugMode)
- Printf("IsPrimary: Track rejected because it has a value of the dca(xy) higher than the %d sigma pt dependent cut: %lf (max. requested: %lf)",fNSigmaDCAXY,TMath::Abs(dca[0]),fNSigmaDCAXY*fPtDependentDcaXY->Eval(gPt));
- return kFALSE;
- }
- }
-
- return kTRUE;
-}
-
-//____________________________________________________________________//
-Float_t AliProtonAnalysisBase::GetSigmaToVertex(AliESDtrack* esdTrack) const {
- // Calculates the number of sigma to the vertex.
- Float_t b[2];
- Float_t bRes[2];
- Float_t bCov[3];
- if((fProtonAnalysisMode == kTPC)&&(fProtonAnalysisMode != kHybrid)&&(fProtonAnalysisMode != kFullHybrid))
- esdTrack->GetImpactParametersTPC(b,bCov);
- else
- esdTrack->GetImpactParameters(b,bCov);
-
- if (bCov[0]<=0 || bCov[2]<=0) {
- //AliDebug(1, "Estimated b resolution lower or equal zero!");
- bCov[0]=0; bCov[2]=0;
- }
- bRes[0] = TMath::Sqrt(bCov[0]);
- bRes[1] = TMath::Sqrt(bCov[2]);
-
- if (bRes[0] == 0 || bRes[1] ==0) return -1;
-
- Float_t d = TMath::Sqrt(TMath::Power(b[0]/bRes[0],2) + TMath::Power(b[1]/bRes[1],2));
-
- if (TMath::Exp(-d * d / 2) < 1e-10) return 1000;
-
- d = TMath::ErfInverse(1 - TMath::Exp(-d * d / 2)) * TMath::Sqrt(2);
-
- return d;
-}
-
-//____________________________________________________________________//
-Double_t AliProtonAnalysisBase::Rapidity(Double_t gPx,
- Double_t gPy,
- Double_t gPz) const {
- //returns the rapidity of the proton - to be removed
- Double_t fMass = 9.38270000000000048e-01;
-
- Double_t gP = TMath::Sqrt(TMath::Power(gPx,2) +
- TMath::Power(gPy,2) +
- TMath::Power(gPz,2));
- Double_t energy = TMath::Sqrt(gP*gP + fMass*fMass);
- Double_t y = -999;
- if(energy != gPz)
- y = 0.5*TMath::Log((energy + gPz)/(energy - gPz));
-
- return y;
-}
-
-//________________________________________________________________________
-const AliESDVertex* AliProtonAnalysisBase::GetVertex(AliESDEvent* esd,
- AnalysisMode mode,
- Double_t gVxMax,
- Double_t gVyMax,
- Double_t gVzMax) {
- // Get the vertex from the ESD and returns it if the vertex is valid
- // Second argument decides which vertex is used (this selects
- // also the quality criteria that are applied)
- const AliESDVertex* vertex = 0;
- if((mode == kHybrid)||(mode == kFullHybrid))
- vertex = esd->GetPrimaryVertexSPD();
- else if(mode == kTPC){
- Double_t kBz = esd->GetMagneticField();
- AliVertexerTracks vertexer(kBz);
- vertexer.SetTPCMode();
- AliESDVertex *vTPC = vertexer.FindPrimaryVertex(esd);
- esd->SetPrimaryVertexTPC(vTPC);
- for (Int_t i=0; i<esd->GetNumberOfTracks(); i++) {
- AliESDtrack *t = esd->GetTrack(i);
- t->RelateToVertexTPC(vTPC, kBz, kVeryBig);
- }
- delete vTPC;
- vertex = esd->GetPrimaryVertexTPC();
- }
- else if(mode == kGlobal)
- vertex = esd->GetPrimaryVertex();
- else
- Printf("GetVertex: ERROR: Invalid second argument %d", mode);
-
- if(!vertex) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because there is no valid vertex object");
- return 0;
- }
-
- // check Ncontributors
- if(vertex->GetNContributors() <= 0) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because the number of contributors for the vertex determination is <= 0");
- return 0;
- }
-
- // check resolution
- Double_t zRes = vertex->GetZRes();
- if(zRes == 0) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because the value of the vertex resolution in z is 0");
- return 0;
- }
- ((TH1F *)(fListVertexQA->At(0)))->Fill(vertex->GetXv());
- ((TH1F *)(fListVertexQA->At(2)))->Fill(vertex->GetYv());
- ((TH1F *)(fListVertexQA->At(4)))->Fill(vertex->GetZv());
-
- //check position
- if(TMath::Abs(vertex->GetXv()) > gVxMax) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because it has a Vx value of %lf cm (accepted interval: -%lf - %lf)",TMath::Abs(vertex->GetXv()),gVxMax,gVxMax);
- return 0;
- }
- if(TMath::Abs(vertex->GetYv()) > gVyMax) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because it has a Vy value of %lf cm (accepted interval: -%lf - %lf)",TMath::Abs(vertex->GetYv()),gVyMax,gVyMax);
- return 0;
- }
- if(TMath::Abs(vertex->GetZv()) > gVzMax) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because it has a Vz value of %lf cm (accepted interval: -%lf - %lf)",TMath::Abs(vertex->GetZv()),gVzMax,gVzMax);
- return 0;
- }
- ((TH1F *)(fListVertexQA->At(1)))->Fill(vertex->GetXv());
- ((TH1F *)(fListVertexQA->At(3)))->Fill(vertex->GetYv());
- ((TH1F *)(fListVertexQA->At(5)))->Fill(vertex->GetZv());
- ((TH1F *)(fListVertexQA->At(6)))->Fill(vertex->GetNContributors());
-
- //check number of contributors
- if(fMinNumOfContributors > 0) {
- if(fMinNumOfContributors > vertex->GetNContributors()) {
- if(fDebugMode)
- Printf("GetVertex: Event rejected because it has %d number of contributors (requested minimum: %d)",vertex->GetNContributors(),fMinNumOfContributors);
-
- return 0;
- }
- }
-
- return vertex;
-}
-
-//________________________________________________________________________
-Bool_t AliProtonAnalysisBase::IsEventTriggered(const AliESDEvent *esd,
- TriggerMode trigger) {
- // check if the event was triggered
- ULong64_t triggerMask = esd->GetTriggerMask();
- TString firedTriggerClass = esd->GetFiredTriggerClasses();
-
- if(fAnalysisMC) {
- // definitions from p-p.cfg
- ULong64_t spdFO = (1 << 14);
- ULong64_t v0left = (1 << 11);
- ULong64_t v0right = (1 << 12);
-
- switch (trigger) {
- case kMB1: {
- if (triggerMask & spdFO || ((triggerMask & v0left) || (triggerMask & v0right)))
- return kTRUE;
- break;
- }
- case kMB2: {
- if (triggerMask & spdFO && ((triggerMask & v0left) || (triggerMask & v0right)))
- return kTRUE;
- break;
- }
- case kSPDFASTOR: {
- if (triggerMask & spdFO)
- return kTRUE;
- break;
- }
- }//switch
- }
- else {
- if(kUseOnlineTrigger) {
- if(firedTriggerClass.Contains("CINT1B-ABCE-NOPF-ALL"))
- return kTRUE;
- }
- else if(!kUseOnlineTrigger)
- return kTRUE;
- }
-
- return kFALSE;
-}
-
-//________________________________________________________________________
-TCanvas *AliProtonAnalysisBase::GetListOfCuts() {
- // return the list of cuts and their cut values for reference
- TLatex l;
- l.SetTextAlign(12);
- l.SetTextSize(0.04);
-
- TString listOfCuts;
-
- TCanvas *c = new TCanvas("cListOfCuts","List of cuts",0,0,900,600);
- c->SetFillColor(10); c->SetHighLightColor(41);
- c->Divide(3,2);
-
- c->cd(1)->SetFillColor(10);
- l.DrawLatex(0.3,0.9,"Analysis details: List of cuts\n\n");
-
- listOfCuts = "Analysis level: "; listOfCuts += fProtonAnalysisLevel;
- l.DrawLatex(0.1,0.82,listOfCuts.Data());
- listOfCuts = "Analysis mode: ";
- if(fProtonAnalysisMode == kTPC) listOfCuts += "TPC standalone";
- if(fProtonAnalysisMode == kHybrid) listOfCuts += "Hybrid TPC";
- if(fProtonAnalysisMode == kFullHybrid) listOfCuts += "Full Hybrid TPC";
- if(fProtonAnalysisMode == kGlobal) listOfCuts += "Global tracking";
- l.DrawLatex(0.1,0.74,listOfCuts.Data());
- listOfCuts = "Trigger mode: ";
- if(fTriggerMode == kMB1) listOfCuts += "Minimum bias 1";
- if(fTriggerMode == kMB2) listOfCuts += "Minimum bias 2";
- if(fTriggerMode == kSPDFASTOR) listOfCuts += "FastOR (SPD)";
- l.DrawLatex(0.1,0.66,listOfCuts.Data());
- listOfCuts = "PID mode: ";
- if(fProtonPIDMode == kBayesian) listOfCuts += "Bayesian PID";
- if(fProtonPIDMode == kRatio) {
- listOfCuts += "Z = ln((dE/dx)_{exp.}/(dE/dx)_{theor.}) > ";
- listOfCuts += fNRatio;
- }
- if(fProtonPIDMode == kSigma) {
- listOfCuts += "N_{#sigma} area: "; listOfCuts += fNSigma;
- listOfCuts += " #sigma";
- }
- //if(fProtonPIDMode == kSigma2) {
- //listOfCuts += "N_{#sigma}(2) area: "; listOfCuts += fNSigma;
- //listOfCuts += " #sigma";
- //}
- l.DrawLatex(0.1,0.58,listOfCuts.Data());
- listOfCuts = "Accepted vertex diamond: ";
- l.DrawLatex(0.1,0.52,listOfCuts.Data());
- listOfCuts = "|V_{x}| < "; listOfCuts += fVxMax; listOfCuts += " [cm]";
- l.DrawLatex(0.6,0.52,listOfCuts.Data());
- listOfCuts = "|V_{y}| < "; listOfCuts += fVyMax; listOfCuts += " [cm]";
- l.DrawLatex(0.6,0.45,listOfCuts.Data());
- listOfCuts = "|V_{z}| < "; listOfCuts += fVzMax; listOfCuts += " [cm]";
- l.DrawLatex(0.6,0.38,listOfCuts.Data());
- listOfCuts = "N_{contributors} > "; listOfCuts += fMinNumOfContributors;
- l.DrawLatex(0.6,0.31,listOfCuts.Data());
- listOfCuts = "Phase space: ";
- l.DrawLatex(0.1,0.2,listOfCuts.Data());
- if(fAnalysisEtaMode) listOfCuts = "|#eta| < ";
- else listOfCuts = "|y| < ";
- listOfCuts += TMath::Abs(fMinX);
- l.DrawLatex(0.35,0.2,listOfCuts.Data());
- listOfCuts = "N_{bins} = ";
- listOfCuts += fNBinsX; listOfCuts += " (binning: ";
- listOfCuts += (fMaxX-fMinX)/fNBinsX; listOfCuts += ")";
- l.DrawLatex(0.35,0.15,listOfCuts.Data());
- listOfCuts = ""; listOfCuts += fMinY; listOfCuts += " < P_{T} < ";
- listOfCuts += fMaxY; listOfCuts += "GeV/c";
- l.DrawLatex(0.35,0.1,listOfCuts.Data());
- listOfCuts = "N_{bins} = ";
- listOfCuts += fNBinsY; listOfCuts += " (binning: ";
- listOfCuts += (fMaxY-fMinY)/fNBinsY; listOfCuts += ")";
- l.DrawLatex(0.35,0.05,listOfCuts.Data());
-
- c->cd(2)->SetFillColor(2);
- l.DrawLatex(0.3,0.95,"ITS related cuts");
- listOfCuts = "Request a cluster on either of the SPD layers: ";
- listOfCuts += fPointOnSPDLayersFlag;
- l.DrawLatex(0.1,0.9,listOfCuts.Data());
- listOfCuts = "Request a cluster on either of the SDD layers: ";
- listOfCuts += fPointOnSDDLayersFlag;
- l.DrawLatex(0.1,0.83,listOfCuts.Data());
- listOfCuts = "Request a cluster on either of the SSD layers: ";
- listOfCuts += fPointOnSSDLayersFlag;
- l.DrawLatex(0.1,0.76,listOfCuts.Data());
-
- listOfCuts = "Request a cluster on SPD1: ";
- listOfCuts += fPointOnITSLayer1Flag;
- l.DrawLatex(0.1,0.69,listOfCuts.Data());
- listOfCuts = "Request a cluster on SPD2: ";
- listOfCuts += fPointOnITSLayer2Flag;
- l.DrawLatex(0.1,0.62,listOfCuts.Data());
- listOfCuts = "Request a cluster on SDD1: ";
- listOfCuts += fPointOnITSLayer3Flag;
- l.DrawLatex(0.1,0.55,listOfCuts.Data());
- listOfCuts = "Request a cluster on SDD2: ";
- listOfCuts += fPointOnITSLayer4Flag;
- l.DrawLatex(0.1,0.48,listOfCuts.Data());
- listOfCuts = "Request a cluster on SSD1: ";
- listOfCuts += fPointOnITSLayer5Flag;
- l.DrawLatex(0.1,0.41,listOfCuts.Data());
- listOfCuts = "Request a cluster on SSD2: ";
- listOfCuts += fPointOnITSLayer6Flag;
- l.DrawLatex(0.1,0.34,listOfCuts.Data());
- listOfCuts = "Minimum number of ITS clusters: ";
- if(fMinITSClustersFlag) listOfCuts += fMinITSClusters;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.27,listOfCuts.Data());
- listOfCuts = "Maximum #chi^{2} per ITS cluster: ";
- if(fMaxChi2PerITSClusterFlag) listOfCuts += fMaxChi2PerITSCluster;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.2,listOfCuts.Data());
-
- c->cd(3)->SetFillColor(3);
- l.DrawLatex(0.3,0.9,"TPC related cuts");
- listOfCuts = "Minimum number of TPC clusters: ";
- if(fMinTPCClustersFlag) listOfCuts += fMinTPCClusters;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.7,listOfCuts.Data());
- listOfCuts = "Maximum #chi^{2} per TPC cluster: ";
- if(fMaxChi2PerTPCClusterFlag) listOfCuts += fMaxChi2PerTPCCluster;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.5,listOfCuts.Data());
- listOfCuts = "Minimum number of TPC points for the dE/dx: ";
- if(fMinTPCdEdxPointsFlag) listOfCuts += fMinTPCdEdxPoints;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.3,listOfCuts.Data());
-
- c->cd(4)->SetFillColor(4);
- l.DrawLatex(0.3,0.9,"Tracking related cuts");
- listOfCuts = "Maximum cov11: ";
- if(fMaxCov11Flag) listOfCuts += fMaxCov11;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.75,listOfCuts.Data());
- listOfCuts = "Maximum cov22: ";
- if(fMaxCov22Flag) listOfCuts += fMaxCov22;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.6,listOfCuts.Data());
- listOfCuts = "Maximum cov33: ";
- if(fMaxCov33Flag) listOfCuts += fMaxCov33;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.45,listOfCuts.Data());
- listOfCuts = "Maximum cov44: ";
- if(fMaxCov44Flag) listOfCuts += fMaxCov44;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.3,listOfCuts.Data());
- listOfCuts = "Maximum cov55: ";
- if(fMaxCov55Flag) listOfCuts += fMaxCov55;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.15,listOfCuts.Data());
-
- c->cd(5)->SetFillColor(5);
- l.DrawLatex(0.3,0.9,"DCA related cuts");
- listOfCuts = "Maximum sigma to vertex: ";
- if(fMaxSigmaToVertexFlag) listOfCuts += fMaxSigmaToVertex;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.8,listOfCuts.Data());
- listOfCuts = "Maximum sigma to vertex (TPC): ";
- if(fMaxSigmaToVertexTPCFlag) listOfCuts += fMaxSigmaToVertexTPC;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.72,listOfCuts.Data());
- listOfCuts = "Maximum DCA in xy: ";
- if(fMaxDCAXYFlag) listOfCuts += fMaxDCAXY;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.64,listOfCuts.Data());
- listOfCuts = "Maximum DCA in z: ";
- if(fMaxDCAZFlag) listOfCuts += fMaxDCAZ;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.56,listOfCuts.Data());
- listOfCuts = "Maximum DCA in 3D: ";
- if(fMaxDCA3DFlag) listOfCuts += fMaxDCA3D;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.48,listOfCuts.Data());
- listOfCuts = "Maximum DCA in xy (TPC): ";
- if(fMaxDCAXYFlag) listOfCuts += fMaxDCAXYTPC;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.4,listOfCuts.Data());
- listOfCuts = "Maximum DCA in z (TPC): ";
- if(fMaxDCAZFlag) listOfCuts += fMaxDCAZTPC;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.32,listOfCuts.Data());
- listOfCuts = "Maximum DCA in 3D (TPC): ";
- if(fMaxDCA3DFlag) listOfCuts += fMaxDCA3DTPC;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.24,listOfCuts.Data());
- listOfCuts = "Maximum constrained #chi^{2} (vertex): ";
- if(fMaxConstrainChi2Flag) listOfCuts += fMaxConstrainChi2;
- else listOfCuts += "Not used";
- l.DrawLatex(0.1,0.16,listOfCuts.Data());
-
- c->cd(6)->SetFillColor(6);
- l.DrawLatex(0.3,0.9,"Tracking bits related cuts");
- listOfCuts = "Request the ITS refit bit: "; listOfCuts += fITSRefitFlag;
- l.DrawLatex(0.1,0.7,listOfCuts.Data());
- listOfCuts = "Request the TPC refit bit: "; listOfCuts += fTPCRefitFlag;
- l.DrawLatex(0.1,0.5,listOfCuts.Data());
- listOfCuts = "Request the TPC pid bit: "; listOfCuts += fTPCpidFlag;
- l.DrawLatex(0.1,0.3,listOfCuts.Data());
- listOfCuts = "Request the ESD pid bit: "; listOfCuts += fESDpidFlag;
- l.DrawLatex(0.1,0.1,listOfCuts.Data());
-
- return c;
-}
-
-//________________________________________________________________________
-Bool_t AliProtonAnalysisBase::IsProton(AliESDtrack *track) {
- //Function that checks if a track is a proton
- Double_t probability[5] = {0.,0.,0.,0.,0.};
- Double_t gPt = 0.0, gP = 0.0, gEta = 0.0;
- Long64_t fParticleType = 0;
-
- //Bayesian approach for the PID
- if(fProtonPIDMode == kBayesian) {
- if((fProtonAnalysisMode == kTPC)||(fProtonAnalysisMode == kHybrid)||(fProtonAnalysisMode == kFullHybrid)) {
- AliExternalTrackParam *tpcTrack = (AliExternalTrackParam *)track->GetTPCInnerParam();
- if(tpcTrack) {
- gPt = tpcTrack->Pt();
- gP = tpcTrack->P();
- track->GetTPCpid(probability);
- }
- else return 0;
- }//TPC standalone or Hybrid TPC
- else if(fProtonAnalysisMode == kGlobal) {
- gPt = track->Pt();
- gP = track->P();
- track->GetESDpid(probability);
- }//Global tracking
-
- Double_t rcc = 0.0;
- for(Int_t i = 0; i < AliPID::kSPECIES; i++)
- rcc += probability[i]*GetParticleFraction(i,gP);
- if(rcc != 0.0) {
- Double_t w[5];
- for(Int_t i = 0; i < AliPID::kSPECIES; i++)
- w[i] = probability[i]*GetParticleFraction(i,gP)/rcc;
- fParticleType = TMath::LocMax(AliPID::kSPECIES,w);
- }
- if(fParticleType == 4)
- return kTRUE;
- }//Bayesian pid
- //Ratio of the measured over the theoretical dE/dx a la STAR
- else if(fProtonPIDMode == kRatio) {
- AliExternalTrackParam *tpcTrack = (AliExternalTrackParam *)track->GetTPCInnerParam();
- if(tpcTrack) {
- gPt = tpcTrack->Pt();
- gP = track->GetInnerParam()->P();
- gEta = tpcTrack->Eta();
- }
- Double_t fAlephParameters[5] = {0.,0.,0.,0.,0.};
- if(fAnalysisMC) {
- fAlephParameters[0] = 2.15898e+00/50.;
- fAlephParameters[1] = 1.75295e+01;
- fAlephParameters[2] = 3.40030e-09;
- fAlephParameters[3] = 1.96178e+00;
- fAlephParameters[4] = 3.91720e+00;
- }
- else {
- fAlephParameters[0] = 0.0283086;
- fAlephParameters[1] = 2.63394e+01;
- fAlephParameters[2] = 5.04114e-11;
- fAlephParameters[3] = 2.12543e+00;
- fAlephParameters[4] = 4.88663e+00;
- }
-
- AliTPCPIDResponse *tpcResponse = new AliTPCPIDResponse();
- tpcResponse->SetBetheBlochParameters(fAlephParameters[0],fAlephParameters[1],fAlephParameters[2],fAlephParameters[3],fAlephParameters[4]);
-
- Double_t normalizeddEdx = -10.;
- if((track->GetTPCsignal() > 0.0) && (tpcResponse->GetExpectedSignal(gP,AliPID::kProton) > 0.0))
- normalizeddEdx = TMath::Log(track->GetTPCsignal()/tpcResponse->GetExpectedSignal(gP,AliPID::kProton));
-
- delete tpcResponse;
-
- if(normalizeddEdx >= fNRatio)
- return kTRUE;
- }//kRatio PID mode
- //Definition of an N-sigma area around the dE/dx vs P band
- else if(fProtonPIDMode == kSigma) {
- Double_t fAlephParameters[5];
- if(fAnalysisMC) {
- fAlephParameters[0] = 2.15898e+00/50.;
- fAlephParameters[1] = 1.75295e+01;
- fAlephParameters[2] = 3.40030e-09;
- fAlephParameters[3] = 1.96178e+00;
- fAlephParameters[4] = 3.91720e+00;
- }
- else {
- fAlephParameters[0] = 0.0283086;
- fAlephParameters[1] = 2.63394e+01;
- fAlephParameters[2] = 5.04114e-11;
- fAlephParameters[3] = 2.12543e+00;
- fAlephParameters[4] = 4.88663e+00;
- }
-
- Double_t nsigma = 100.0;
- AliTPCPIDResponse *tpcResponse = new AliTPCPIDResponse();
- tpcResponse->SetBetheBlochParameters(fAlephParameters[0],fAlephParameters[1],fAlephParameters[2],fAlephParameters[3],fAlephParameters[4]);
-
- Double_t mom = track->GetP();
- const AliExternalTrackParam *in = track->GetInnerParam();
- if (in)
- mom = in->GetP();
-
- nsigma = TMath::Abs(tpcResponse->GetNumberOfSigmas(mom,track->GetTPCsignal(),track->GetTPCsignalN(),AliPID::kProton));
-
- delete tpcResponse;
- if(nsigma <= fNSigma)
- return kTRUE;
- }//kSigma PID method
-
- return kFALSE;
-}
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff