#include "TChain.h"
#include "AliESDtrackCuts.h"
#include "AliESDVertex.h"
+#include "AliEventplane.h"
+#include "TProfile2D.h"
// STL includes
//#include <iostream>
fV3(kTRUE),
fIsMC(kFALSE),
fQAsw(kFALSE),
+ fIsAfter2011(kFALSE),
fRun(-1),
fNcluster(70),
fList(new TList()),
fFillDCA(kFALSE),
fContQApid(NULL),
fModulationDEDx(kFALSE),
+ fZvtx(0.),
+ fNK0s(0),
+ fNpiPos(0),
+ fNpiNeg(0),
+ fHKsPhi(NULL),
+ fHKsPhiEP(NULL),
+ fHK0sMass(NULL),
+ fHK0sMass2(NULL),
+ fHK0vsLambda(NULL),
+ fHctauPtEP(NULL),
+ fHctauAt1EP(NULL),
fCutsDaughter(NULL)
{
// Default constructor (should not be used)
fV3(kTRUE),
fIsMC(kFALSE),
fQAsw(kFALSE),
+ fIsAfter2011(kFALSE),
fRun(-1),
fNcluster(70),
fList(new TList()),
fFillDCA(kFALSE),
fContQApid(NULL),
fModulationDEDx(kFALSE),
+ fZvtx(0.),
+ fNK0s(0),
+ fNpiPos(0),
+ fNpiNeg(0),
+ fHKsPhi(NULL),
+ fHKsPhiEP(NULL),
+ fHK0sMass(NULL),
+ fHK0sMass2(NULL),
+ fHK0vsLambda(NULL),
+ fHctauPtEP(NULL),
+ fHctauAt1EP(NULL),
fCutsDaughter(NULL)
{
if(fV2) fContAllChargesV0A->AddSpecies("Ks",nPtBinsTOF,binsPtTOF);
if(fV2) fContAllChargesV0A->AddSpecies("Lambda",nPtBinsTOF,binsPtTOF);
if(fV2) fContAllChargesV0A->AddSpecies("pFromLambda",nPtBinsTOF,binsPtTOF);
+ if(fV2) fContAllChargesV0A->AddSpecies("piFromK",nPtBinsTOF,binsPtTOF);
fContAllChargesV0C = new AliFlowVZEROResults("v2C",6,binsTOF);
fContAllChargesV0C->SetVarRange(0,-0.5,nCentrBin-0.5); // centrality
if(fV2) fContAllChargesV0C->AddSpecies("Ks",nPtBinsTOF,binsPtTOF);
if(fV2) fContAllChargesV0C->AddSpecies("Lambda",nPtBinsTOF,binsPtTOF);
if(fV2) fContAllChargesV0C->AddSpecies("pFromLambda",nPtBinsTOF,binsPtTOF);
+ if(fV2) fContAllChargesV0C->AddSpecies("piFromK",nPtBinsTOF,binsPtTOF);
fList->Add(fContAllChargesV0A);
fList->Add(fContAllChargesV0C);
+ fHctauPtEP = new TProfile2D("hctauPtEP","K^{0}_{s} decay length;p_{T} (GeV/#it{c});#Delta#phi (rad)",40,0,5,10,-TMath::Pi(),TMath::Pi());
+ fHctauAt1EP = new TH2F("hctauAt1EP","K^{0}_{s} decay length at 1 GeV/#it{c};c#tau (cm);#Delta#phi (rad)",50,0,50,10,-TMath::Pi(),TMath::Pi());
+ // added at the end
+
if(fIsMC && fV2){
fContAllChargesMC = new AliFlowVZEROResults("v2mc",5,binsTOFmc);
fContAllChargesMC->SetVarRange(0,-0.5,nCentrBin-0.5); // centrality
if(fV3) fContAllChargesV0Av3->AddSpecies("Ks",nPtBinsTOF,binsPtTOF);
if(fV3) fContAllChargesV0Av3->AddSpecies("Lambda",nPtBinsTOF,binsPtTOF);
if(fV3) fContAllChargesV0Av3->AddSpecies("pFromLambda",nPtBinsTOF,binsPtTOF);
+ if(fV3) fContAllChargesV0Av3->AddSpecies("piFromK",nPtBinsTOF,binsPtTOF);
fContAllChargesV0Cv3 = new AliFlowVZEROResults("v3C",6,binsTOF);
fContAllChargesV0Cv3->SetVarRange(0,-0.5,nCentrBin-0.5); // centrality
if(fV3) fContAllChargesV0Cv3->AddSpecies("Ks",nPtBinsTOF,binsPtTOF);
if(fV3) fContAllChargesV0Cv3->AddSpecies("Lambda",nPtBinsTOF,binsPtTOF);
if(fV3) fContAllChargesV0Cv3->AddSpecies("pFromLambda",nPtBinsTOF,binsPtTOF);
+ if(fV3) fContAllChargesV0Cv3->AddSpecies("piFromK",nPtBinsTOF,binsPtTOF);
fList2->Add(fContAllChargesV0Av3);
fList2->Add(fContAllChargesV0Cv3);
printf("Output creation ok!!\n\n\n\n");
+ fList->Add(fHctauPtEP);
+ fList->Add(fHctauAt1EP);
+
+ fHKsPhi = new TH2D("hKsPhi","K^{0}_{s} #phi distributuion;v_{z} (cm);#phi (rad)",20,-10,10,20,0,2*TMath::Pi());
+ fList->Add(fHKsPhi);
+ fHKsPhiEP = new TH2D("hKsPhiEP","EP V0C #phi distributuion;v_{z} (cm);#phi (rad)",20,-10,10,20,0,2*TMath::Pi());
+ fList->Add(fHKsPhiEP);
+
+ fHK0sMass = new TH2D("hK0sMass","K^{0}_{s} mass;p_{T} (GeV/#it{c});mass (GeV/#it{c}^{2})",20,0,5,400,0,1);
+ fList->Add(fHK0sMass);
+ fHK0sMass2 = new TH2D("hK0sMass2","K^{0}_{s} mass using secondary vertex;p_{T} (GeV/#it{c});mass (GeV/#it{c}^{2})",20,0,5,400,0,1);
+ fList->Add(fHK0sMass2);
+
+ fHK0vsLambda= new TH2D("hK0vsLambda",";K^{0} mass;#Lambda mass",100,0,1,100,0.5,1.5);
+ fList->Add(fHK0vsLambda);
+
// Post output data.
if(fV2) PostData(1, fList);
if(fV3) PostData(2, fList2);
if(run != fRun){
// Load the calibrations run dependent
- OpenInfoCalbration(run);
- fRun=run;
+ if(! fIsAfter2011) OpenInfoCalbration(run);
+ fRun=run;
}
- Float_t zvtx = GetVertex(fOutputAOD);
+ fZvtx = GetVertex(fOutputAOD);
*/
- // printf("vertex = %f\n",zvtx);
- if (TMath::Abs(zvtx) < fVtxCut) {
+ if (TMath::Abs(fZvtx) < fVtxCut) {
//Centrality
Float_t v0Centr = -10.;
Float_t trkCentr = -10.;
AliCentrality *centrality = fOutputAOD->GetCentrality();
if (centrality){
// printf("v0centr = %f -- tpccnetr%f\n",centrality->GetCentralityPercentile("V0M"),centrality->GetCentralityPercentile("TRK"));
- v0Centr = centrality->GetCentralityPercentile("V0M");
- trkCentr = centrality->GetCentralityPercentile("TRK");
+ v0Centr = centrality->GetCentralityPercentile("V0M");
+ trkCentr = centrality->GetCentralityPercentile("TRK");
+ //changed
}
- if(TMath::Abs(v0Centr - trkCentr) < 5.0){ // consistency cut on centrality selection
+ if(TMath::Abs(v0Centr - trkCentr) < 5.0 && v0Centr > 0){ // consistency cut on centrality selection
fPID->SetDetResponse(fOutputAOD, v0Centr); // Set the PID object for each event!!!!
Analyze(fOutputAOD,v0Centr); // Do analysis!!!!
//________________________________________________________________________
void AliAnalysisTaskVnV0::Analyze(AliAODEvent* aodEvent, Float_t v0Centr)
{
+
+ Int_t nusedForK0s=0;
+ AliAODTrack *usedForK0s1[1000];
+ AliAODTrack *usedForK0s2[1000];
+
Float_t mass[8] = {5.10998909999999971e-04, 1.05658000000000002e-01, 1.39570000000000000e-01, 4.93676999999999977e-01, 9.38271999999999995e-01,1.87783699999999998,2.81740199999999996,1.40805449999999999};
// Event plane resolution for v2
0.446480,0.612705,0.712222,0.736200,0.697907,0.610114,0.481009,0.327402,0.182277};// V0C vs. centrality
Int_t iC = -1;
- if (v0Centr >0 && v0Centr < 80){ // analysis only for 0-80% centrality classes
-
+ if (v0Centr < 80){ // analysis only for 0-80% centrality classes
+ // if (v0Centr >0 && v0Centr < 80){ // analysis only for 0-80% centrality classes
+ // changed
fgIsPsiComputed = kTRUE;
// centrality bins
Int_t iCcal = iC;
+/*
if(nCentrBin==16){
- iC = Int_t(v0Centr/5);
+ iC = v0Centr/5;
if(iC >= nCentrBin) iC = nCentrBin-1;
}
-
+
+ // centrality bins
+ // changed
+ if(v0Centr < 10 + 10./9) iC = 0;
+ else if(v0Centr < 10 + 20./9) iC = 1;
+ else if(v0Centr < 10 + 30./9) iC = 2;
+ else if(v0Centr < 10 + 40./9) iC = 3;
+ else if(v0Centr < 10 + 50./9) iC = 4;
+ else if(v0Centr < 10 + 60./9) iC = 5;
+ else if(v0Centr < 10 + 70./9) iC = 6;
+ else if(v0Centr < 10 + 90./9) iC = 7;
+ else if(v0Centr < 10 + 100./9) iC = 8;
+ else if(v0Centr < 10 + 110./9) iC = 9;
+ else if(v0Centr < 10 + 120./9) iC = 10;
+ else if(v0Centr < 10 + 130./9) iC = 11;
+ else if(v0Centr < 10 + 140./9) iC = 12;
+ else if(v0Centr < 10 + 150./9) iC = 13;
+ else if(v0Centr < 10 + 160./9) iC = 14;
+ else if(v0Centr < 10 + 170./9) iC = 15;
+ else iC = 16;
+ if(iC >= nCentrBin) iC= nCentrBin - 1;
+*/
+
//reset Q vector info
Double_t Qxa2 = 0, Qya2 = 0;
Double_t Qxc2 = 0, Qyc2 = 0;
}
// flow A and C side
- Float_t xMCepAv2[5] = {Float_t(iC),0/*charge*/,1,EvPlaneMCV2[0],1};
- Float_t xMCepCv2[5] = {Float_t(iC),0/*charge*/,1,EvPlaneMCV2[1],1};
- Float_t xMCepAv3[5] = {Float_t(iC),0/*charge*/,1,EvPlaneMCV3[0],1};
- Float_t xMCepCv3[5] = {Float_t(iC),0/*charge*/,1,EvPlaneMCV3[1],1};
+ Float_t xMCepAv2[5] = {iC,0/*charge*/,1,EvPlaneMCV2[0],1};
+ Float_t xMCepCv2[5] = {iC,0/*charge*/,1,EvPlaneMCV2[1],1};
+ Float_t xMCepAv3[5] = {iC,0/*charge*/,1,EvPlaneMCV3[0],1};
+ Float_t xMCepCv3[5] = {iC,0/*charge*/,1,EvPlaneMCV3[1],1};
for(Int_t iT=0;iT < nMCtrack;iT++){
AliAODMCParticle *mctr = (AliAODMCParticle*) mcArray->At(iT);
}
}
+ // TPC EP needed for resolution studies (TPC subevent)
+ Double_t Qx2 = 0, Qy2 = 0;
+ Double_t Qx3 = 0, Qy3 = 0;
+
+ for(Int_t iT = 0; iT < nAODTracks; iT++) {
+
+ AliAODTrack* aodTrack = aodEvent->GetTrack(iT);
+
+ if (!aodTrack){
+ aodTrack->Delete();
+ continue;
+ }
+
+ Bool_t trkFlag = aodTrack->TestFilterBit(1);
+
+ if ((TMath::Abs(aodTrack->Eta()) > 0.8) || (aodTrack->Pt() < 0.2) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag)
+ continue;
+
+ Double_t b[2] = {-99., -99.};
+ Double_t bCov[3] = {-99., -99., -99.};
+ if (!aodTrack->PropagateToDCA(fOutputAOD->GetPrimaryVertex(), fOutputAOD->GetMagneticField(), 100., b, bCov))
+ continue;
+
+ if ((TMath::Abs(b[0]) > 3.0) || (TMath::Abs(b[1]) > 2.4))
+ continue;
+
+ Qx2 += TMath::Cos(2*aodTrack->Phi());
+ Qy2 += TMath::Sin(2*aodTrack->Phi());
+ Qx3 += TMath::Cos(3*aodTrack->Phi());
+ Qy3 += TMath::Sin(3*aodTrack->Phi());
+
+ }
+
+ evPlAng2 = TMath::ATan2(Qy2, Qx2)/2.;
+ evPlAng3 = TMath::ATan2(Qy3, Qx3)/3.;
+
+ fgPsi2tpc = evPlAng2;
+ fgPsi3tpc = evPlAng3;
+
+ SelectK0s();
+
//V0 info
AliAODVZERO* aodV0 = aodEvent->GetVZEROData();
for (Int_t iv0 = 0; iv0 < 64; iv0++) {
Double_t phiV0 = TMath::PiOver4()*(0.5 + iv0 % 8);
Float_t multv0 = aodV0->GetMultiplicity(iv0);
- if (iv0 < 32){ // V0C
- Qxc2 += TMath::Cos(2*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
- Qyc2 += TMath::Sin(2*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
- Qxc3 += TMath::Cos(3*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
- Qyc3 += TMath::Sin(3*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
- } else { // V0A
- Qxa2 += TMath::Cos(2*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
- Qya2 += TMath::Sin(2*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
- Qxa3 += TMath::Cos(3*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
- Qya3 += TMath::Sin(3*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
+
+ if(! fIsAfter2011){
+ if(! fIsMC){
+ if (iv0 < 32){ // V0C
+ Qxc2 += TMath::Cos(2*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qyc2 += TMath::Sin(2*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qxc3 += TMath::Cos(3*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qyc3 += TMath::Sin(3*phiV0) * multv0*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ } else { // V0A
+ Qxa2 += TMath::Cos(2*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qya2 += TMath::Sin(2*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qxa3 += TMath::Cos(3*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qya3 += TMath::Sin(3*phiV0) * multv0*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ }
+ }
+ else{
+ if (iv0 < 32){ // V0C
+ Qxc2 += TMath::Cos(2*phiV0) * multv0;//*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qyc2 += TMath::Sin(2*phiV0) * multv0;//*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qxc3 += TMath::Cos(3*phiV0) * multv0;//*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ Qyc3 += TMath::Sin(3*phiV0) * multv0;//*fV0Cpol/fMultV0->GetBinContent(iv0+1);
+ } else { // V0A
+ Qxa2 += TMath::Cos(2*phiV0) * multv0;//*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qya2 += TMath::Sin(2*phiV0) * multv0;//*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qxa3 += TMath::Cos(3*phiV0) * multv0;//*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ Qya3 += TMath::Sin(3*phiV0) * multv0;//*fV0Apol/fMultV0->GetBinContent(iv0+1);
+ }
+ }
}
}
Double_t QxcCor3 = (Qxc3 - Qxcmean3)/Qxcrms3;
Double_t QycCor3 = (Qyc3 - Qycmean3)/Qycrms3;
- evPlAngV0ACor2 = TMath::ATan2(QyaCor2, QxaCor2)/2.;
- evPlAngV0CCor2 = TMath::ATan2(QycCor2, QxcCor2)/2.;
- evPlAngV0ACor3 = TMath::ATan2(QyaCor3, QxaCor3)/3.;
- evPlAngV0CCor3 = TMath::ATan2(QycCor3, QxcCor3)/3.;
+ if(! fIsAfter2011){
+ if(! fIsMC){
+ evPlAngV0ACor2 = TMath::ATan2(QyaCor2, QxaCor2)/2.;
+ evPlAngV0CCor2 = TMath::ATan2(QycCor2, QxcCor2)/2.;
+ evPlAngV0ACor3 = TMath::ATan2(QyaCor3, QxaCor3)/3.;
+ evPlAngV0CCor3 = TMath::ATan2(QycCor3, QxcCor3)/3.;
+ }
+ else{
+ evPlAngV0ACor2 = TMath::ATan2(Qya2, Qxa2)/2.;
+ evPlAngV0CCor2 = TMath::ATan2(Qyc2, Qxc2)/2.;
+ evPlAngV0ACor3 = TMath::ATan2(Qya3, Qxa3)/3.;
+ evPlAngV0CCor3 = TMath::ATan2(Qyc3, Qxc3)/3.;
+ }
+ }
+ else{
+ AliEventplane *ep = aodEvent->GetEventplane();
+ evPlAngV0ACor2 = ep->GetEventplane("V0A", aodEvent, 2);
+ evPlAngV0CCor2 = ep->GetEventplane("V0C", aodEvent, 2);
+ evPlAngV0ACor3 = ep->GetEventplane("V0A", aodEvent, 3);
+ evPlAngV0CCor3 = ep->GetEventplane("V0C", aodEvent, 3);
+ }
+
fgPsi2v0a = evPlAngV0ACor2;
fgPsi2v0c = evPlAngV0CCor2;
fgPsi3v0a = evPlAngV0ACor3;
fgPsi3v0c = evPlAngV0CCor3;
-
+
+ fHKsPhiEP->Fill(fZvtx,fgPsi2v0c);
//loop track and get pid
for(Int_t iT = 0; iT < nAODTracks; iT++) { // loop on the tracks
AliAODTrack* aodTrack = aodEvent->GetTrack(iT);
}
Bool_t trkFlag = aodTrack->TestFilterBit(1); // TPC only tracks
- if(fFillDCA) trkFlag = aodTrack->TestFilterBit(4); // Global track, DCA loose cut
+ if(fFillDCA)
+ trkFlag = aodTrack->TestFilterBit(4); // Global track, DCA loose cut
if ((TMath::Abs(aodTrack->Eta()) > fEtaCut) || (aodTrack->Pt() < fMinPt) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag){
continue;
if (!fFillDCA && ((TMath::Abs(b[0]) > 3.0) || (TMath::Abs(b[1]) > 2.4)))
continue;
-
- if(fFillDCA && TMath::Abs(b[0]) > 3.0 && TMath::Abs(b[1]) > 3)
- continue;
+
+ if(fFillDCA && (TMath::Abs(b[0]) > 3.0 || TMath::Abs(b[1]) > 3))
+ continue;
// re-map the container in an array to do the analysis for V0A and V0C within a loop
Float_t evPlAngV0[2] = {evPlAngV0ACor2,evPlAngV0CCor2};
fPID->ComputeProb(aodTrack,fOutputAOD); // compute Bayesian probabilities
Float_t tofMismProbMC = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
- Float_t xMC[5] = {Float_t(iC),Float_t(aodTrack->Charge()),1,evplaneMC,Float_t(fPID->GetCurrentMask(1)&&tofMismProbMC < 0.5)}; // to fill analysis v2 container
+ Float_t xMC[5] = {iC,aodTrack->Charge(),1,evplaneMC,fPID->GetCurrentMask(1)&&tofMismProbMC < 0.5}; // to fill analysis v2 container
Float_t v2mc = TMath::Cos(2*(aodTrack->Phi() - evplaneMC));
Float_t v2V0 = TMath::Cos(2*(aodTrack->Phi() - evPlAngV0[iV0]));
Float_t v3V0 = TMath::Cos(3*(aodTrack->Phi() - evPlAngV0v3[iV0]));
-
+
fPID->ComputeProb(aodTrack,fOutputAOD); // compute Bayesian probabilities
Float_t dedx = fPID->GetDeDx();//aodTrack->GetTPCsignal();
Float_t *probRead = fPID->GetProb();
Float_t prob[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
Float_t tofMismProb = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
- Float_t x[6] = {Float_t(iC),Float_t(aodTrack->Charge()),1,evPlAngV0[iV0],Float_t(fPID->GetCurrentMask(1)&&tofMismProb < 0.5),0}; // to fill analysis v2 container
- Float_t x3[6] = {Float_t(iC),Float_t(aodTrack->Charge()),1,evPlAngV0v3[iV0],Float_t(fPID->GetCurrentMask(1)&&tofMismProb < 0.5),0}; // to fill analysis v3 container
+ Float_t x[6] = {iC,aodTrack->Charge(),1,evPlAngV0[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to fill analysis v2 container
+ Float_t x3[6] = {iC,aodTrack->Charge(),1,evPlAngV0v3[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to fill analysis v3 container
// in case fill DCA info
if(fFillDCA){
else if(deltaPhiV0v3 < -TMath::Pi()) deltaPhiV0v3 += 2*TMath::Pi();
// variable to fill QA container
- Float_t xQA[5] = {Float_t(iC),Float_t(aodTrack->Pt()), 0.0,deltaPhiV0,x[4]}; // v2
- Float_t xQA3[5] = {Float_t(iC),Float_t(aodTrack->Pt()), 0.0,deltaPhiV0v3,x[4]}; // v3
+ Float_t xQA[5] = {iC,aodTrack->Pt(), 0.0,deltaPhiV0,x[4]}; // v2
+ Float_t xQA3[5] = {iC,aodTrack->Pt(), 0.0,deltaPhiV0v3,x[4]}; // v3
// extra QA TProfiles
if(iV0==1 && aodTrack->Pt() < 20 && fPID->GetCurrentMask(0) && fPID->GetCurrentMask(1)){
- Float_t xQApid[2] = {Float_t(iC),Float_t(aodTrack->Pt())};
+ Float_t xQApid[2] = {iC,aodTrack->Pt()};
fContQApid->Fill(0,nsigmaTPC[2],v2V0,xQApid); // v2 TPC (V0C) w.r.t pions
fContQApid->Fill(1,nsigmaTOF[2],v2V0,xQApid); // v2 TOF (V0C) w.r.t. pions
fContQApid->Fill(2,nsigmaTPC[3],v2V0,xQApid); // v2 TPC (V0C) w.r.t kaons
if(TMath::Abs(nsigmaTPC[2])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[2])<5))){ //pi
xQA[2] = prob[2];
xQA3[2] = xQA[2];
- if(fV2) QA[iV0]->Fill(0,nsigmaTPC[2],nsigmaTOF[2],xQA);
- if(fV3) QAv3[iV0]->Fill(0,nsigmaTPC[2],nsigmaTOF[2],xQA3);
+ if(fQAsw && fV2) QA[iV0]->Fill(0,nsigmaTPC[2],nsigmaTOF[2],xQA);
+ if(fQAsw && fV3) QAv3[iV0]->Fill(0,nsigmaTPC[2],nsigmaTOF[2],xQA3);
}
if(TMath::Abs(nsigmaTPC[3])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[3])<5))){ //K
xQA[2] = prob[3];
xQA3[2] = xQA[2];
- if(fV2) QA[iV0]->Fill(1,nsigmaTPC[3],nsigmaTOF[3],xQA);
-// if(fV3) QAv3[iV0]->Fill(1,nsigmaTPC[3],nsigmaTOF[3],xQA3);
+ if(fQAsw && fV2) QA[iV0]->Fill(1,nsigmaTPC[3],nsigmaTOF[3],xQA);
+// if(fQAsw && fV3) QAv3[iV0]->Fill(1,nsigmaTPC[3],nsigmaTOF[3],xQA3);
}
if(TMath::Abs(nsigmaTPC[4])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[4])<5))){//p
xQA[2] = prob[4];
xQA3[2] = xQA[2];
- if(fV2) QA[iV0]->Fill(2,nsigmaTPC[4],nsigmaTOF[4],xQA);
-// if(fV3) QAv3[iV0]->Fill(2,nsigmaTPC[4],nsigmaTOF[4],xQA3);
+ if(fQAsw && fV2) QA[iV0]->Fill(2,nsigmaTPC[4],nsigmaTOF[4],xQA);
+// if(fQAsw && fV3) QAv3[iV0]->Fill(2,nsigmaTPC[4],nsigmaTOF[4],xQA3);
}
if(TMath::Abs(nsigmaTPC[0])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[0])<5))){//e
xQA[2] = prob[0];
xQA3[2] = xQA[2];
-// if(fV2) QA[iV0]->Fill(3,nsigmaTPC[0],nsigmaTOF[0],xQA);
-// if(fV3) QAv3[iV0]->Fill(3,nsigmaTPC[0],nsigmaTOF[0],xQA3);
+// if(fQAsw && fV2) QA[iV0]->Fill(3,nsigmaTPC[0],nsigmaTOF[0],xQA);
+// if(fQAsw && fV3) QAv3[iV0]->Fill(3,nsigmaTPC[0],nsigmaTOF[0],xQA3);
}
if(TMath::Abs(nsigmaTPC[5])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[5])<5))){//d
xQA[2] = prob[5];
xQA3[2] = xQA[2];
- // if(fV2) QA[iV0]->Fill(4,nsigmaTPC[5],nsigmaTOF[5],xQA);
- // if(fV3) QAv3[iV0]->Fill(4,nsigmaTPC[5],nsigmaTOF[5],xQA3);
+ // if(fQAsw && fV2) QA[iV0]->Fill(4,nsigmaTPC[5],nsigmaTOF[5],xQA);
+ // if(fQAsw && fV3) QAv3[iV0]->Fill(4,nsigmaTPC[5],nsigmaTOF[5],xQA3);
}
if(TMath::Abs(nsigmaTPC[6])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[6])<5))){//t
xQA[2] = prob[6];
xQA3[2] = xQA[2];
- // if(fV2) QA[iV0]->Fill(5,nsigmaTPC[6],nsigmaTOF[6],xQA);
- // if(fV3) QAv3[iV0]->Fill(5,nsigmaTPC[6],nsigmaTOF[6],xQA3);
+ // if(fQAsw && fV2) QA[iV0]->Fill(5,nsigmaTPC[6],nsigmaTOF[6],xQA);
+ // if(fQAsw && fV3) QAv3[iV0]->Fill(5,nsigmaTPC[6],nsigmaTOF[6],xQA3);
}
if(TMath::Abs(nsigmaTPC[7])<5 && (!(fPID->GetCurrentMask(1)) || (TMath::Abs(nsigmaTOF[7])<5))){//He3
xQA[2] = prob[7];
xQA3[2] = xQA[2];
- // if(fV2) QA[iV0]->Fill(6,nsigmaTPC[7],nsigmaTOF[7],xQA);
- // if(fV3) QAv3[iV0]->Fill(6,nsigmaTPC[7],nsigmaTOF[7],xQA3);
+ // if(fQAsw && fV2) QA[iV0]->Fill(6,nsigmaTPC[7],nsigmaTOF[7],xQA);
+ // if(fQAsw && fV3) QAv3[iV0]->Fill(6,nsigmaTPC[7],nsigmaTOF[7],xQA3);
}
}
} // end side loop
} // end track loop
+ // my V0 loop
+ for(Int_t imy=0;imy<fNK0s;imy++){
+ Float_t evPlAngV0[2] = {evPlAngV0ACor2,evPlAngV0CCor2};
+ Float_t evPlAngV0v3[2] = {evPlAngV0ACor3,evPlAngV0CCor3};
+
+ AliFlowVZEROResults *contV0[2] = {fContAllChargesV0A,fContAllChargesV0C};
+ AliFlowVZEROResults *contV0v3[2] = {fContAllChargesV0Av3,fContAllChargesV0Cv3};
+
+ for(Int_t iV0=0;iV0<2;iV0++){ // loop on A and C side
+ Float_t x[6] = {iC,-1/*my K0s are negative for convention*/,1,evPlAngV0[iV0],1,0}; // to fill analysis v2 container
+ Float_t x3[6] = {iC,-1,1,evPlAngV0v3[iV0],1,0}; // to fill analysis v3 container
+
+ Float_t v2V0 = TMath::Cos(2*(fPhiK0s[imy] - evPlAngV0[iV0]));
+ Float_t v3V0 = TMath::Cos(3*(fPhiK0s[imy] - evPlAngV0v3[iV0]));
+ if(fV2) contV0[iV0]->Fill(9,fPtK0s[imy],v2V0,x);
+ if(fV3) contV0v3[iV0]->Fill(9,fPtK0s[imy],v3V0,x3);
+ }
+ }
+
// V0 loop
Int_t nV0s = fOutputAOD->GetNumberOfV0s();
AliAODv0 *myV0;
- // Double_t dQT, dPT, dALPHA,
- Double_t dMASS=0.0;
-
+ Double_t dQT, dALPHA, dPT, dMASS=0.0;
for (Int_t i=0; i!=nV0s; ++i) {
myV0 = (AliAODv0*) fOutputAOD->GetV0(i);
if(!myV0) continue;
if(pass) {
dMASS = myV0->MassK0Short();
pass = 3;
+ fHK0sMass2->Fill(myV0->Pt(),dMASS);
}
- else {
+ if(TMath::Abs(dMASS-0.497)/0.005 > 3){
pass = PassesAODCuts(myV0,fOutputAOD,1);
if(pass) dMASS = myV0->MassLambda();
if(pass==2) dMASS = myV0->MassAntiLambda();
}
+
if(pass){// 1 lambda, 2 antilambda, 3=K0s
- // dPT=myV0->Pt();
- // dQT=myV0->PtArmV0();
- // dALPHA=myV0->AlphaV0();
+ dPT=myV0->Pt();
+ dQT=myV0->PtArmV0();
+ dALPHA=myV0->AlphaV0();
Int_t iPos, iNeg;
AliAODTrack *iT=(AliAODTrack*) myV0->GetDaughter(0);
} else {
iPos = 1; iNeg = 0;
}
+
+ // check if one of the daugthers was already used
+ if(pass == 3 && TMath::Abs(dMASS-0.497)/0.005 < 1){
+ fHKsPhi->Fill(fZvtx, myV0->Phi());
+ }
+
+ if(pass == 1000){ // disable
+ Bool_t used = kFALSE;
+ for(Int_t ii=0;ii<nusedForK0s;ii++){
+ if(myV0->GetDaughter(iNeg) == usedForK0s1[ii] || myV0->GetDaughter(iPos) == usedForK0s2[ii]){
+ used = kTRUE;
+ }
+ }
+ if((!used) && nusedForK0s < 1000){
+ nusedForK0s++;
+ usedForK0s1[nusedForK0s] = (AliAODTrack *) myV0->GetDaughter(iNeg);
+ usedForK0s2[nusedForK0s] = (AliAODTrack *) myV0->GetDaughter(iPos);
+ printf("accepted\n");
+ }
+ else{
+ dMASS = 0;
+ printf("rejected\n");
+ }
+ }
+
iT=(AliAODTrack*) myV0->GetDaughter(iPos); // positive
AliAODTrack *jT=(AliAODTrack*) myV0->GetDaughter(iNeg); // negative
for(Int_t iV0=0;iV0<2;iV0++){ // loop on A and C side
+ if(fModulationDEDx) fPID->SetPsiCorrectionDeDx(evPlAngV0[iV0],evPlRes[iV0*8+iC]); // set the PID dE/dx correction as a function of the v2-EP (resolution is needed)
+
Float_t v2V0 = TMath::Cos(2*(myV0->Phi() - evPlAngV0[iV0]));
Float_t v3V0 = TMath::Cos(3*(myV0->Phi() - evPlAngV0v3[iV0]));
- Float_t x[6] = {Float_t(iC),1,1,evPlAngV0[iV0],1,0}; // to fill analysis v2 container
- Float_t x3[6] = {Float_t(iC),1,1,evPlAngV0v3[iV0],1,0}; // to fill analysis v3 container
+ Float_t deltaphi = myV0->Phi()- evPlAngV0[iV0];
+ if(deltaphi > TMath::Pi()) deltaphi -= 2*TMath::Pi();
+ if(deltaphi < -TMath::Pi()) deltaphi += 2*TMath::Pi();
+
+ Float_t x[6] = {iC,1,1,evPlAngV0[iV0],1,0}; // to fill analysis v2 container
+ Float_t x3[6] = {iC,1,1,evPlAngV0v3[iV0],1,0}; // to fill analysis v3 container
Float_t decaylength = myV0->DecayLengthXY(fOutputAOD->GetPrimaryVertex());
// printf("decay length = %f\n",decaylength);
x3[2] = x[2];
// Fill Container for lambda and Ks
- if(fV2 && pass == 3 && x[2] > 0.6) contV0[iV0]->Fill(9,myV0->Pt(),v2V0,x);
+ if(fV2 && pass == 3 && x[2] > 0.6){
+ contV0[iV0]->Fill(9,myV0->Pt(),v2V0,x);
+ fHctauPtEP->Fill(myV0->Pt(),deltaphi,decaylength);//ciao
+ if(myV0->Pt() < 1.1 && myV0->Pt() > 0.9) fHctauAt1EP->Fill(decaylength,deltaphi);
+ }
if(fV3 && pass == 3 && x[2] > 0.6) contV0v3[iV0]->Fill(9,myV0->Pt(),v3V0,x3);
if(fV2 && pass < 3 && x[2] > 0.6) contV0[iV0]->Fill(10,myV0->Pt(),v2V0,x);
if(fV3 && pass < 3 && x[2] > 0.6) contV0v3[iV0]->Fill(10,myV0->Pt(),v3V0,x3);
Float_t *probRead = fPID->GetProb();
Float_t prob[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
Float_t tofMismProb = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ if(prob[4] < 0.61) prob[4] = 0.61;
- Float_t xdec[6] = {Float_t(iC),Float_t(aodTrack->Charge()),prob[4],evPlAngV0[iV0],Float_t(fPID->GetCurrentMask(1)&&tofMismProb < 0.5),0}; // to fill analysis v2 container
- Float_t xdec3[6] = {Float_t(iC),Float_t(aodTrack->Charge()),prob[4],evPlAngV0v3[iV0],Float_t(fPID->GetCurrentMask(1)&&tofMismProb < 0.5),0}; // to fill analysis v3 container
+ Float_t xdec[6] = {iC,aodTrack->Charge(),prob[4],evPlAngV0[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to fill analysis v2 container
+ Float_t xdec3[6] = {iC,aodTrack->Charge(),prob[4],evPlAngV0v3[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to fill analysis v3 container
// Fill Container for (anti)proton from lambda
- if(nsigma < 2 && xdec[2] > 0.6){
+ if(nsigma < 2 && xdec[2] > 0.6 && TMath::Abs(aodTrack->Eta()) < 0.8){
if(fV2) contV0[iV0]->Fill(11,aodTrack->Pt(),v2V0,xdec);
if(fV3) contV0v3[iV0]->Fill(11,aodTrack->Pt(),v3V0,xdec3);
}
}
+ else if(pass == 3){
+ AliAODTrack* aodTrack = iT;
+
+ v2V0 = TMath::Cos(2*(aodTrack->Phi() - evPlAngV0[iV0]));
+ v3V0 = TMath::Cos(3*(aodTrack->Phi() - evPlAngV0v3[iV0]));
+
+ fPID->ComputeProb(aodTrack,fOutputAOD); // compute Bayesian probabilities
+ Float_t *probRead = fPID->GetProb();
+ Float_t prob[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
+ Float_t tofMismProb = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ if(prob[2] < 0.61) prob[2] = 0.61;
+
+ Float_t xdec[6] = {iC,aodTrack->Charge(),prob[2],evPlAngV0[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to
+ Float_t xdec3[6] = {iC,aodTrack->Charge(),prob[2],evPlAngV0v3[iV0],fPID->GetCurrentMask(1)&&tofMismProb < 0.5,0}; // to
+
+ if(nsigma < 2 && xdec[2] > 0.6 && TMath::Abs(aodTrack->Eta()) < 0.8){
+ if(fV2) contV0[iV0]->Fill(12,aodTrack->Pt(),v2V0,xdec);
+ if(fV3) contV0v3[iV0]->Fill(12,aodTrack->Pt(),v3V0,xdec3);
+ }
+
+ aodTrack = jT;
+ v2V0 = TMath::Cos(2*(aodTrack->Phi() - evPlAngV0[iV0]));
+ v3V0 = TMath::Cos(3*(aodTrack->Phi() - evPlAngV0v3[iV0]));
+
+ fPID->ComputeProb(aodTrack,fOutputAOD); // compute Bayesian probabilities
+ Float_t *probRead2 = fPID->GetProb();
+ Float_t prob2[8] = {probRead2[0],probRead2[1],probRead2[2],probRead2[3],probRead2[4],probRead2[5],probRead2[6],probRead2[7]};
+ Float_t tofMismProb2 = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ if(prob2[2] < 0.61) prob2[2] = 0.61;
+
+ Float_t xdecB[6] = {iC,aodTrack->Charge(),prob2[2],evPlAngV0[iV0],fPID->GetCurrentMask(1)&&tofMismProb2 < 0.5,0}; // to
+ Float_t xdecB3[6] = {iC,aodTrack->Charge(),prob2[2],evPlAngV0v3[iV0],fPID->GetCurrentMask(1)&&tofMismProb2 < 0.5,0}; // to
+
+ if(nsigma < 2 && xdecB[2] > 0.6 && TMath::Abs(aodTrack->Eta()) < 0.8){
+ if(fV2) contV0[iV0]->Fill(12,aodTrack->Pt(),v2V0,xdecB);
+ if(fV3) contV0v3[iV0]->Fill(12,aodTrack->Pt(),v3V0,xdecB3);
+ }
+ }
}
}
if(fV3) fPhiRPv0Av3->Fill(iC,evPlAngV0ACor3);
if(fV3) fPhiRPv0Cv3->Fill(iC,evPlAngV0CCor3);
- // TPC EP needed for resolution studies (TPC subevent)
- Double_t Qx2 = 0, Qy2 = 0;
- Double_t Qx3 = 0, Qy3 = 0;
-
- for(Int_t iT = 0; iT < nAODTracks; iT++) {
-
- AliAODTrack* aodTrack = aodEvent->GetTrack(iT);
-
- if (!aodTrack){
- aodTrack->Delete();
- continue;
- }
-
- Bool_t trkFlag = aodTrack->TestFilterBit(1);
-
- if ((TMath::Abs(aodTrack->Eta()) > 0.8) || (aodTrack->Pt() < 0.2) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag)
- continue;
-
- Double_t b[2] = {-99., -99.};
- Double_t bCov[3] = {-99., -99., -99.};
- if (!aodTrack->PropagateToDCA(fOutputAOD->GetPrimaryVertex(), fOutputAOD->GetMagneticField(), 100., b, bCov))
- continue;
-
- if ((TMath::Abs(b[0]) > 3.0) || (TMath::Abs(b[1]) > 2.4))
- continue;
-
- Qx2 += TMath::Cos(2*aodTrack->Phi());
- Qy2 += TMath::Sin(2*aodTrack->Phi());
- Qx3 += TMath::Cos(3*aodTrack->Phi());
- Qy3 += TMath::Sin(3*aodTrack->Phi());
-
- }
-
- evPlAng2 = TMath::ATan2(Qy2, Qx2)/2.;
- evPlAng3 = TMath::ATan2(Qy3, Qx3)/3.;
-
- fgPsi2tpc = evPlAng2;
- fgPsi3tpc = evPlAng3;
-
// Fill histograms needed for resolution evaluation
if(fV2) fHResTPCv0A2->Fill(Double_t(iC), TMath::Cos(2*(evPlAng2 - evPlAngV0ACor2)));
if(fV2) fHResTPCv0C2->Fill(Double_t(iC), TMath::Cos(2*(evPlAng2 - evPlAngV0CCor2)));
if(fV3) fHResv0Cv0A3->Fill(Double_t(iC), TMath::Cos(3*(evPlAngV0ACor3 - evPlAngV0CCor3)));
}
+
+
+ // clean track array
+ for(Int_t i=0;i < nusedForK0s;i++){
+ usedForK0s1[i] = NULL;
+ usedForK0s2[i] = NULL;
+ }
}
//_____________________________________________________________________________
//=======================================================================
Int_t AliAnalysisTaskVnV0::PassesAODCuts(AliAODv0 *myV0, AliAODEvent *tAOD,Int_t specie)
{
- Int_t set = 2;
+ Int_t set = 0;
Float_t fV0Cuts[9];
// defines cuts to be used
// fV0Cuts[9] dl dca ctp d0 d0d0 qt minEta maxEta PID
if(dETA >fV0Cuts[7]) passes = 0;
if(specie==0) if(dQT<fV0Cuts[5]) passes = 0;
if(specie==1&&passes==1&&dALPHA<0) passes = 2; // antilambda
+
+
+// if(jT->Pt() < 0.5*myV0->Pt() || iT->Pt() < 0.5*myV0->Pt()) passes = 0;
+
+
+ // additional cut
+// if(!(iT->GetStatus() & AliAODTrack::kTPCrefit)) passes = 0;
+// if(!(jT->GetStatus() & AliAODTrack::kTPCrefit)) passes = 0;
+
+// if(!(iT->GetStatus() & AliAODTrack::kITSrefit)) passes = 0;
+// if(!(jT->GetStatus() & AliAODTrack::kITSrefit)) passes = 0;
+
+// if(!(iT->GetStatus() & AliAODTrack::kTOFout)) passes = 0;
+// if(!(jT->GetStatus() & AliAODTrack::kTOFout)) passes = 0;
+
+ Bool_t trkFlag = iT->TestFilterBit(1); // TPC only tracks (4,global track)
+ Bool_t trkFlag2 = jT->TestFilterBit(1); // TPC only tracks (4,global track)
+
+ if(!trkFlag) passes = 0;
+ if(!trkFlag2) passes = 0;
+
if(passes&&fV0Cuts[8]) {
Double_t dedxExp[8];
fPID->ComputeProb(iT,tAOD); // compute Bayesian probabilities
Float_t nsigmaTPC[8];
+
+ Int_t tofMatch=0;
+ Int_t tofMatch2=0;
+
if(iT->GetDetPid()){ // check the PID object is available
for(Int_t iS=0;iS < 8;iS++){
dedxExp[iS] = fPID->GetExpDeDx(iT,iS);
nsigmaTPC[iS] = 10;
}
+
+ if(fPID->GetCurrentMask(1)) // if TOF is present
+ tofMatch = 1;
+
+// Float_t tofMismProbMC = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ Float_t *probRead = fPID->GetProb();
+ Float_t prob[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
+
fPID->ComputeProb(jT,tAOD); // compute Bayesian probabilities
Float_t nsigmaTPC2[8];
if(jT->GetDetPid()){ // check the PID object is available
nsigmaTPC2[iS] = 10;
}
+ if(fPID->GetCurrentMask(1)) // if TOF is present
+ tofMatch2 = 1;
+
+// Float_t tofMismProbMC2 = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ probRead = fPID->GetProb();
+ Float_t prob2[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
+
if(jT->GetTPCNcls() < fNcluster) passes = 0;
else if(iT->GetTPCNcls() < fNcluster) passes = 0;
+// if(! (tofMatch && tofMatch2)) passes = 0;
+
+ /*
+ Float_t dMASS = myV0->MassK0Short();
+ Float_t nsigmaMass = TMath::Abs(dMASS-0.497)/0.005;
+ if(specie == 0 && TMath::Abs(nsigmaMass) < 1 && myV0->Pt() > 1) printf("candidate i=(pt=%f-phi=%f-tof=%i) j=(pt=%f-phi=%f-tof=%i) \n",iT->Pt(),iT->Phi(),tofMatch,jT->Pt(),jT->Phi(),tofMatch2);
+ */
+
switch(specie) {
case 0: // K0 PID
- if( (jT->GetTPCmomentum()<15) &&
- (TMath::Abs(nsigmaTPC2[2])>3.) )
- passes = 0;
- if( (iT->GetTPCmomentum()<15) &&
- (TMath::Abs(nsigmaTPC[2])>3.) )
- passes = 0;
+ if(0){
+ if( ((jT->GetTPCmomentum()<15) &&
+ (TMath::Abs(nsigmaTPC2[2])>3.)) || prob2[2] < 0.9)
+ passes = 0;
+ if( ((iT->GetTPCmomentum()<15) &&
+ (TMath::Abs(nsigmaTPC[2])>3.))|| prob[2] < 0.9 )
+ passes = 0;
+ }
break;
case 1: // Lambda PID i==pos j ==neg
if(passes==1) {
}
return passes;
}
+//=======================================================================
+void AliAnalysisTaskVnV0::SelectK0s(){
+ fNK0s=0;
+ fNpiPos=0;
+ fNpiNeg=0;
+
+ if(fModulationDEDx) fPID->SetPsiCorrectionDeDx(evPlAng2,1.0); // set the PID dE/dx correction as a function of the v2-EP (resolution is needed)
+
+ // fill pion stacks
+ Int_t nAODTracks = fOutputAOD->GetNumberOfTracks();
+ for(Int_t iT = 0; iT < nAODTracks; iT++) { // loop on the tracks
+ AliAODTrack* aodTrack = fOutputAOD->GetTrack(iT);
+
+ if (!aodTrack){
+ aodTrack->Delete();
+ continue;
+ }
+
+ Bool_t trkFlag = aodTrack->TestFilterBit(1); // TPC only tracks
+// trkFlag = aodTrack->TestFilterBit(4); // Global track, DCA loose cut
+
+ if ((TMath::Abs(aodTrack->Eta()) > fEtaCut) || (aodTrack->Pt() < fMinPt) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag){
+ continue;
+ }
+
+ Double_t b[2] = {-99., -99.};
+ Double_t bCov[3] = {-99., -99., -99.};
+ if (!aodTrack->PropagateToDCA(fOutputAOD->GetPrimaryVertex(), fOutputAOD->GetMagneticField(), 100., b, bCov))
+ continue;
+
+ if(TMath::Abs(b[0]) < 0.5/aodTrack->Pt()) continue;
+
+ fPID->ComputeProb(aodTrack,fOutputAOD); // compute Bayesian probabilities
+ Float_t *probRead = fPID->GetProb();
+ Float_t prob[8] = {probRead[0],probRead[1],probRead[2],probRead[3],probRead[4],probRead[5],probRead[6],probRead[7]};
+ // Float_t tofMismProb = fPID->GetTOFMismProb(); // TOF mismatch probability requested to be lower than 50% for TOF analysis
+
+ Int_t charge = aodTrack->Charge();
+ if(prob[2] > 0.9){
+ if(charge > 0){
+ fIPiPos[fNpiPos] = iT;
+ fNpiPos++;
+ }
+ else{
+ fIPiNeg[fNpiNeg] = iT;
+ fNpiNeg++;
+ }
+ }
+ }
+
+ for(Int_t i=0;i < fNpiPos;i++){
+ AliAODTrack *pip = fOutputAOD->GetTrack(fIPiPos[i]);
+ AliESDtrack pipE(pip);
+
+ for(Int_t j=0;j < fNpiNeg;j++){
+ AliAODTrack *pin = fOutputAOD->GetTrack(fIPiNeg[j]);
+ AliESDtrack pinE(pin);
+
+ Double_t xn, xp, mindist=pinE.GetDCA(&pipE,fOutputAOD->GetMagneticField(),xn,xp);
+
+ Double_t pPos[3];
+ Double_t pNeg[3];
+ pipE.GetPxPyPzAt(xp,fOutputAOD->GetMagneticField(),pPos);
+ pinE.GetPxPyPzAt(xn,fOutputAOD->GetMagneticField(),pNeg);
+
+ Float_t length = (xp+xn)*0.5;
+
+ Float_t pxs = pPos[0] + pNeg[0];
+ Float_t pys = pPos[1] + pNeg[1];
+ Float_t pzs = pPos[2] + pNeg[2];
+ Float_t es = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.13957*0.13957) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.13957*0.13957);
+
+ Float_t pt = TMath::Sqrt(pxs*pxs + pys*pys);
+ Float_t phi = TMath::ATan2(pys,pxs);
+ Float_t mass = TMath::Sqrt(es*es - pt*pt - pzs*pzs);
+
+ // if(length > 1) printf("length = %f - distance = %f - mass= %f\n",length,mindist,mass);
+
+ if(mindist < 0.2&& length > 1 && length < 25){
+ fHK0sMass->Fill(pt,mass);
+
+ Float_t esL = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.938*0.938) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.13957*0.13957);
+ Float_t esAL = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.13957*0.13957) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.938*0.938);
+
+ Float_t massaL = TMath::Sqrt(esL*esL - pt*pt - pzs*pzs);
+ Float_t massaAL = TMath::Sqrt(esAL*esAL - pt*pt - pzs*pzs);
+
+ fHK0vsLambda->Fill(mass,TMath::Min(massaL,massaAL));
+
+ if(TMath::Abs(mass-0.497)/0.005 < 1 && massaL > 1.15 && massaAL > 1.15){
+ fPhiK0s[fNK0s] = phi;
+ fPtK0s[fNK0s] = pt;
+ fNK0s++;
+ }
+ }
+ }
+ }
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff