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AliAnalysisTaskESDfilter.cxx
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AliAnalysisTaskESDfilter.cxx
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/**************************************************************************
* 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. *
**************************************************************************/
#include <Riostream.h>
#include <TChain.h>
#include <TTree.h>
#include <TList.h>
#include <TArrayI.h>
#include <TParameter.h>
#include <TRandom.h>
#include <TParticle.h>
#include <TFile.h>
#include <TVector3.h>
#include "AliAnalysisTaskESDfilter.h"
#include "AliAnalysisManager.h"
#include "AliESDEvent.h"
#include "AliESDRun.h"
#include "AliStack.h"
#include "AliAODEvent.h"
#include "AliMCEvent.h"
#include "AliMCEventHandler.h"
#include "AliESDInputHandler.h"
#include "AliAODHandler.h"
#include "AliAODMCParticle.h"
#include "AliAnalysisFilter.h"
#include "AliESDMuonTrack.h"
#include "AliESDVertex.h"
#include "AliCentrality.h"
#include "AliEventplane.h"
#include "AliESDv0.h"
#include "AliESDkink.h"
#include "AliESDcascade.h"
#include "AliESDPmdTrack.h"
#include "AliESDCaloCluster.h"
#include "AliESDCaloCells.h"
#include "AliMultiplicity.h"
#include "AliLog.h"
#include "AliCodeTimer.h"
#include "AliESDtrackCuts.h"
#include "AliESDpid.h"
#include "AliAODHMPIDrings.h"
#include "AliV0vertexer.h"
#include "AliCascadeVertexer.h"
#include "AliExternalTrackParam.h"
#include "AliTrackerBase.h"
#include "AliTPCdEdxInfo.h"
#include "AliESDTrdTrack.h"
#include "AliESDTrdTracklet.h"
#include "AliAODTrdTrack.h"
#include "AliAODTrdTracklet.h"
#include "AliEMCALRecoUtilsBase.h"
#include "AliESDUtils.h"
using std::cout;
using std::endl;
ClassImp(AliAnalysisTaskESDfilter);
AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter():
AliAnalysisTaskSE(),
fTrackFilter(0x0),
fKinkFilter(0x0),
fV0Filter(0x0),
fCascadeFilter(0x0),
fHighPthreshold(0),
fPtshape(0x0),
fEnableFillAOD(kTRUE),
fUsedTrack(0x0),
fUsedTrackCopy(0x0),
fUsedKink(0x0),
fUsedV0(0x0),
fAODTrackRefs(0x0),
fAODV0VtxRefs(0x0),
fAODV0Refs(0x0),
fMChandler(0x0),
fNumberOfTracks(0),
fNumberOfPositiveTracks(0),
fNumberOfV0s(0),
fNumberOfVertices(0),
fNumberOfCascades(0),
fNumberOfKinks(0),
fOldESDformat(kFALSE),
fPrimaryVertex(0x0),
fTPCConstrainedFilterMask(0),
fHybridFilterMaskTPCCG(0),
fWriteHybridTPCCOnly(kFALSE),
fGlobalConstrainedFilterMask(0),
fHybridFilterMaskGCG(0),
fWriteHybridGCOnly(kFALSE),
fIsVZEROEnabled(kTRUE),
fIsTZEROEnabled(kTRUE),
fIsZDCEnabled(kTRUE),
fIsADEnabled(kTRUE),
fIsHMPIDEnabled(kTRUE),
fIsV0CascadeRecoEnabled(kFALSE),
fAreCascadesEnabled(kTRUE),
fAreV0sEnabled(kTRUE),
fAreKinksEnabled(kTRUE),
fAreTracksEnabled(kTRUE),
fArePmdClustersEnabled(kTRUE),
fAreCaloClustersEnabled(kTRUE),
fAreEMCALCellsEnabled(kTRUE),
fArePHOSCellsEnabled(kTRUE),
fAreEMCALTriggerEnabled(kTRUE),
fArePHOSTriggerEnabled(kTRUE),
fAreTrackletsEnabled(kTRUE),
fIsTRDEnabled(kTRUE),
fESDpid(0x0),
fIsPidOwner(kFALSE),
fTPCaloneTrackCuts(0),
fDoPropagateTrackToEMCal(kTRUE),
fEMCalSurfaceDistance(440),
fUseMassForPropToEMCal(0),
fUseOuterParamForPropToEMCal(0),
fRefitVertexTracks(-1),
fRefitVertexTracksNCuts(0),
fRefitVertexTracksCuts(0),
fRunMVertexerForPileUp(0),
fIsMuonCaloPass(kFALSE),
fAddPCMv0s(kFALSE),
fbitfieldPCMv0sA(NULL),
fbitfieldPCMv0sB(NULL),
fv0Histos(NULL),
fHistov0List(NULL),
fkDoSelectiveV0Reset(kFALSE)
{
// Default constructor
fV0Cuts[0] = 33. ; // max allowed chi2
fV0Cuts[1] = 0.1 ; // min allowed impact parameter for the 1st daughter
fV0Cuts[2] = 0.1 ; // min allowed impact parameter for the 2nd daughter
fV0Cuts[3] = 1. ; // max allowed DCA between the daughter tracks
fV0Cuts[4] = .998; // min allowed cosine of V0's pointing angle
fV0Cuts[5] = 0.9 ; // min radius of the fiducial volume
fV0Cuts[6] = 100. ; // max radius of the fiducial volume
fCascadeCuts[0] = 33. ; // max allowed chi2 (same as PDC07)
fCascadeCuts[1] = 0.05 ; // min allowed V0 impact parameter
fCascadeCuts[2] = 0.008; // "window" around the Lambda mass
fCascadeCuts[3] = 0.03 ; // min allowed bachelor's impact parameter
fCascadeCuts[4] = 0.3 ; // max allowed DCA between the V0 and the bachelor
fCascadeCuts[5] = 0.999; // min allowed cosine of the cascade pointing angle
fCascadeCuts[6] = 0.9 ; // min radius of the fiducial volume
fCascadeCuts[7] = 100. ; // max radius of the fiducial volume
}
//______________________________________________________________________________
AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter(const char* name, Bool_t addPCMv0s):
AliAnalysisTaskSE(name),
fTrackFilter(0x0),
fKinkFilter(0x0),
fV0Filter(0x0),
fCascadeFilter(0x0),
fHighPthreshold(0),
fPtshape(0x0),
fEnableFillAOD(kTRUE),
fUsedTrack(0x0),
fUsedTrackCopy(0x0),
fUsedKink(0x0),
fUsedV0(0x0),
fAODTrackRefs(0x0),
fAODV0VtxRefs(0x0),
fAODV0Refs(0x0),
fMChandler(0x0),
fNumberOfTracks(0),
fNumberOfPositiveTracks(0),
fNumberOfV0s(0),
fNumberOfVertices(0),
fNumberOfCascades(0),
fNumberOfKinks(0),
fOldESDformat(kFALSE),
fPrimaryVertex(0x0),
fTPCConstrainedFilterMask(0),
fHybridFilterMaskTPCCG(0),
fWriteHybridTPCCOnly(kFALSE),
fGlobalConstrainedFilterMask(0),
fHybridFilterMaskGCG(0),
fWriteHybridGCOnly(kFALSE),
fIsVZEROEnabled(kTRUE),
fIsTZEROEnabled(kTRUE),
fIsZDCEnabled(kTRUE),
fIsADEnabled(kTRUE),
fIsHMPIDEnabled(kTRUE),
fIsV0CascadeRecoEnabled(kFALSE),
fAreCascadesEnabled(kTRUE),
fAreV0sEnabled(kTRUE),
fAreKinksEnabled(kTRUE),
fAreTracksEnabled(kTRUE),
fArePmdClustersEnabled(kTRUE),
fAreCaloClustersEnabled(kTRUE),
fAreEMCALCellsEnabled(kTRUE),
fArePHOSCellsEnabled(kTRUE),
fAreEMCALTriggerEnabled(kTRUE),
fArePHOSTriggerEnabled(kTRUE),
fAreTrackletsEnabled(kTRUE),
fIsTRDEnabled(kTRUE),
fESDpid(0x0),
fIsPidOwner(kFALSE),
fTPCaloneTrackCuts(0),
fDoPropagateTrackToEMCal(kTRUE),
fEMCalSurfaceDistance(440),
fUseMassForPropToEMCal(0),
fUseOuterParamForPropToEMCal(0),
fRefitVertexTracks(-1),
fRefitVertexTracksNCuts(0),
fRefitVertexTracksCuts(0),
fRunMVertexerForPileUp(0),
fIsMuonCaloPass(kFALSE),
fAddPCMv0s(addPCMv0s),
fbitfieldPCMv0sA(NULL),
fbitfieldPCMv0sB(NULL),
fv0Histos(NULL),
fHistov0List(NULL),
fkDoSelectiveV0Reset(kFALSE)
{
/// Constructor
fV0Cuts[0] = 33. ; // max allowed chi2
fV0Cuts[1] = 0.1 ; // min allowed impact parameter for the 1st daughter
fV0Cuts[2] = 0.1 ; // min allowed impact parameter for the 2nd daughter
fV0Cuts[3] = 1. ; // max allowed DCA between the daughter tracks
fV0Cuts[4] = .998; // min allowed cosine of V0's pointing angle
fV0Cuts[5] = 0.9 ; // min radius of the fiducial volume
fV0Cuts[6] = 100. ; // max radius of the fiducial volume
fCascadeCuts[0] = 33. ; // max allowed chi2 (same as PDC07)
fCascadeCuts[1] = 0.05 ; // min allowed V0 impact parameter
fCascadeCuts[2] = 0.008; // "window" around the Lambda mass
fCascadeCuts[3] = 0.03 ; // min allowed bachelor's impact parameter
fCascadeCuts[4] = 0.3 ; // max allowed DCA between the V0 and the bachelor
fCascadeCuts[5] = 0.999; // min allowed cosine of the cascade pointing angle
fCascadeCuts[6] = 0.9 ; // min radius of the fiducial volume
fCascadeCuts[7] = 100. ; // max radius of the fiducial volume
if(fAddPCMv0s){
DefineInput(1,TBits::Class()); //Bit field for pcm v0s OfflineV0Finder
DefineInput(2,TBits::Class()); //Bit field for pcm v0s On-FlyV0Finder
DefineOutput(1,TList::Class()); //TList containing PCM v0 histos for consistency checks
}
}
AliAnalysisTaskESDfilter::~AliAnalysisTaskESDfilter()
{
if(fIsPidOwner) delete fESDpid;
delete[] fRefitVertexTracksCuts;
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::UserCreateOutputObjects()
{
/// Create Output Objects conenct filter to outputtree
if (fAddPCMv0s){
fHistov0List = new TList();
fHistov0List->SetName("PCMv0Checks");
fv0Histos = new TH1D("v0CheckHisto","",8,1,9);
fv0Histos->GetXaxis()->SetBinLabel(1,"All PCM On-Fly");
fv0Histos->GetXaxis()->SetBinLabel(2,"All PCM Offline");
fv0Histos->GetXaxis()->SetBinLabel(3,"PCM On-Fly & v0filter");
fv0Histos->GetXaxis()->SetBinLabel(4,"PCM Offline & v0filter");
fv0Histos->GetXaxis()->SetBinLabel(5,"PCM On-Fly & v0 cascades");
fv0Histos->GetXaxis()->SetBinLabel(6,"PCM Offline & v0 cascades");
fv0Histos->GetXaxis()->SetBinLabel(7,"PCM On-Fly not selected by filter");
fv0Histos->GetXaxis()->SetBinLabel(8,"PCM Offline not selected by filter");
fHistov0List->Add(fv0Histos);
fHistov0List->SetOwner(kTRUE);
PostData(1,fHistov0List);
}
if(OutputTree())
{
OutputTree()->GetUserInfo()->Add(fTrackFilter);
}
else
{
AliError("No OutputTree() for adding the track filter");
}
if (!fIsMuonCaloPass)
{
fTPCaloneTrackCuts = AliESDtrackCuts::GetStandardTPCOnlyTrackCuts();
}
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::Init()
{
/// Initialization
if (fDebug > 1) AliInfo("Init() \n");
}
//______________________________________________________________________________
Bool_t AliAnalysisTaskESDfilter::Notify()
{
/// Notify method.
AddMetadataToUserInfo();
return kTRUE;
}
//______________________________________________________________________________
Bool_t AliAnalysisTaskESDfilter::AddMetadataToUserInfo()
{
/// Copy metadata to AOD user info.
static Bool_t copyFirst = kFALSE;
if (!copyFirst) {
AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
if (!mgr) {
AliError("AliAnalysisTaskESDfilter::AddMetadataToUserInfo() : No analysis manager !");
return kFALSE;
}
TTree *esdTree = mgr->GetTree()->GetTree();
if (!esdTree) return kFALSE;
TNamed *alirootVersion = (TNamed*)esdTree->GetUserInfo()->FindObject("alirootVersion");
if (!alirootVersion) return kFALSE;
AliAODHandler *aodHandler = dynamic_cast<AliAODHandler*>(mgr->GetOutputEventHandler());
if (!aodHandler) return kFALSE;
TTree *aodTree = aodHandler->GetTree();
if (!aodTree) return kFALSE;
aodTree->GetUserInfo()->Add(new TNamed(*alirootVersion));
copyFirst = kTRUE;
}
return kTRUE;
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::PrintTask(Option_t *option, Int_t indent) const
{
/// Print selection task information
AliInfo("");
AliAnalysisTaskSE::PrintTask(option,indent);
TString spaces(' ',indent+3);
cout << spaces.Data() << Form("Cascades are %s",fAreCascadesEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("V0s are %s",fAreV0sEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("Kinks are %s",fAreKinksEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("Tracks are %s",fAreTracksEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("PmdClusters are %s",fArePmdClustersEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("CaloClusters are %s",fAreCaloClustersEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("EMCAL cells are %s",fAreEMCALCellsEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("EMCAL triggers are %s",fAreEMCALTriggerEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("PHOS triggers are %s",fArePHOSTriggerEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("Tracklets are %s",fAreTrackletsEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("HMPID is %s",fIsHMPIDEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("TRD is %s",fIsTRDEnabled ? "ENABLED":"DISABLED") << endl;
cout << spaces.Data() << Form("PropagateTrackToEMCal is %s", fDoPropagateTrackToEMCal ? "ENABLED":"DISABLED") << endl;
if (fRefitVertexTracks<0) cout << spaces.Data() << Form("RefitVerteTracks is DISABLED") << endl;
else cout << spaces.Data() << Form("RefitVerteTracks is ENABLED to %d",fRefitVertexTracks) << endl;
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::UserExec(Option_t */*option*/)
{
/// Execute analysis for current event
Long64_t ientry = Entry();
if (fDebug > 0) {
printf("Filter: Analysing event # %5d\n", (Int_t) ientry);
if (fHighPthreshold == 0) AliInfo("detector PID signals are stored in each track");
if (!fPtshape) AliInfo("detector PID signals are not stored below the pt threshold");
}
// Filters must explicitely enable AOD filling in their UserExec (AG)
if (!AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler())
AliFatal("Cannot run ESD filter without an output event handler");
if(fEnableFillAOD) {
AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()->SetFillAOD(kTRUE);
AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()->SetFillExtension(kTRUE);
}
ConvertESDtoAOD();
if(fAddPCMv0s) PostData(1,fHistov0List);
}
//______________________________________________________________________________
TClonesArray& AliAnalysisTaskESDfilter::Cascades()
{
return *(AODEvent()->GetCascades());
}
//______________________________________________________________________________
TClonesArray& AliAnalysisTaskESDfilter::Tracks()
{
return *(AODEvent()->GetTracks());
}
//______________________________________________________________________________
TClonesArray& AliAnalysisTaskESDfilter::V0s()
{
return *(AODEvent()->GetV0s());
}
//______________________________________________________________________________
TClonesArray& AliAnalysisTaskESDfilter::Vertices()
{
return *(AODEvent()->GetVertices());
}
//______________________________________________________________________________
TClonesArray& AliAnalysisTaskESDfilter::Kinks()
{
return *(AODEvent()->GetKinks());
}
//______________________________________________________________________________
AliAODHeader* AliAnalysisTaskESDfilter::ConvertHeader(const AliESDEvent& esd)
{
/// Convert header information
AliCodeTimerAuto("",0);
AliAODHeader* header = dynamic_cast<AliAODHeader*>(AODEvent()->GetHeader());
if(!header) AliFatal("Not a standard AOD");
header->SetRunNumber(esd.GetRunNumber());
header->SetOfflineTrigger(fInputHandler->IsEventSelected()); // propagate the decision of the physics selection
header->SetNumberOfESDTracks(esd.GetNumberOfTracks());
header->SetDAQAttributes(esd.GetDAQAttributes());
header->SetNumberOfTPCClusters(esd.GetNumberOfTPCClusters());
header->SetNumberOfTPCTracks(esd.GetNumberOfTPCTracks());
header->SetTPCTrackBeforeClean(esd.GetNTPCTrackBeforeClean());
TTree* tree = fInputHandler->GetTree();
if (tree) {
TFile* file = tree->GetCurrentFile();
if (file) header->SetESDFileName(file->GetName());
}
if (fOldESDformat) {
header->SetBunchCrossNumber(0);
header->SetOrbitNumber(0);
header->SetPeriodNumber(0);
header->SetEventType(0);
header->SetMuonMagFieldScale(-999.);
header->SetCentrality(0);
header->SetEventplane(0);
} else {
header->SetBunchCrossNumber(esd.GetBunchCrossNumber());
header->SetOrbitNumber(esd.GetOrbitNumber());
header->SetPeriodNumber(esd.GetPeriodNumber());
header->SetEventType(esd.GetEventType());
header->SetTimeStamp(esd.GetTimeStamp());
header->SetEventNumberESDFile(esd.GetHeader()->GetEventNumberInFile());
if(const_cast<AliESDEvent&>(esd).GetCentrality()){
header->SetCentrality(const_cast<AliESDEvent&>(esd).GetCentrality());
}
else{
header->SetCentrality(0);
}
if(const_cast<AliESDEvent&>(esd).GetEventplane()){
header->SetEventplane(const_cast<AliESDEvent&>(esd).GetEventplane());
}
else{
header->SetEventplane(0);
}
}
// Trigger
header->SetFiredTriggerClasses(esd.GetFiredTriggerClasses());
header->SetTriggerMask(esd.GetTriggerMask());
header->SetTriggerMaskNext50(esd.GetTriggerMaskNext50());
header->SetTriggerCluster(esd.GetTriggerCluster());
header->SetL0TriggerInputs(esd.GetHeader()->GetL0TriggerInputs());
header->SetL1TriggerInputs(esd.GetHeader()->GetL1TriggerInputs());
header->SetL2TriggerInputs(esd.GetHeader()->GetL2TriggerInputs());
header->SetMagneticField(esd.GetMagneticField());
header->SetMuonMagFieldScale(esd.GetCurrentDip()/6000.);
header->SetZDCN1Energy(esd.GetZDCN1Energy());
header->SetZDCP1Energy(esd.GetZDCP1Energy());
header->SetZDCN2Energy(esd.GetZDCN2Energy());
header->SetZDCP2Energy(esd.GetZDCP2Energy());
header->SetZDCEMEnergy(esd.GetZDCEMEnergy(0),esd.GetZDCEMEnergy(1));
header->SetIRInt2InteractionMap(esd.GetHeader()->GetIRInt2InteractionMap());
header->SetIRInt1InteractionMap(esd.GetHeader()->GetIRInt1InteractionMap());
// Detector status
header->SetDetectorStatusMask(esd.GetDetectorStatus());
// ITS Cluster Multiplicty
const AliMultiplicity *mult = esd.GetMultiplicity();
for (Int_t ilay = 0; ilay < 6; ilay++) header->SetITSClusters(ilay, mult->GetNumberOfITSClusters(ilay));
// TPC only Reference Multiplicty
Int_t refMult = fTPCaloneTrackCuts ? (Short_t)fTPCaloneTrackCuts->GetReferenceMultiplicity(&esd, kTRUE) : -1;
header->SetTPConlyRefMultiplicity(refMult);
//
AliESDtrackCuts::MultEstTrackType estType = esd.GetPrimaryVertexTracks()->GetStatus() ? AliESDtrackCuts::kTrackletsITSTPC : AliESDtrackCuts::kTracklets;
header->SetRefMultiplicityComb05(AliESDtrackCuts::GetReferenceMultiplicity(&esd,estType,0.5));
header->SetRefMultiplicityComb08(AliESDtrackCuts::GetReferenceMultiplicity(&esd,estType,0.8));
header->SetRefMultiplicityComb10(AliESDtrackCuts::GetReferenceMultiplicity(&esd,estType,1.0));
//
Float_t diamxy[2]={(Float_t)esd.GetDiamondX(),(Float_t)esd.GetDiamondY()};
Float_t diamcov[3];
esd.GetDiamondCovXY(diamcov);
header->SetDiamond(diamxy,diamcov);
header->SetDiamondZ(esd.GetDiamondZ(),esd.GetSigma2DiamondZ());
// VZERO channel equalization factors for event-plane reconstruction
header->SetVZEROEqFactors(esd.GetVZEROEqFactors());
// T0 Resolution information
const AliESDRun* esdRun = esd.GetESDRun();
for (Int_t i=0;i<AliESDRun::kT0spreadSize;i++) header->SetT0spread(i,esdRun->GetT0spread(i));
return header;
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::ConvertCascades(const AliESDEvent& esd)
{
/// Convert the cascades part of the ESD.
/// Return the number of cascades
AliCodeTimerAuto("",0);
// Create vertices starting from the most complex objects
Double_t chi2 = 0.;
const AliESDVertex* vtx = esd.GetPrimaryVertex();
Float_t lPVpos[3];
lPVpos[0]=vtx->GetX();
lPVpos[1]=vtx->GetY();
lPVpos[2]=vtx->GetZ();
Double_t pos[3] = { 0. };
Double_t covVtx[6] = { 0. };
Double_t momBach[3]={0.};
Double_t covTr[21]={0.};
// Double_t pid[10]={0.};
AliAODPid* detpid(0x0);
AliAODVertex* vV0FromCascade(0x0);
AliAODv0* aodV0(0x0);
AliAODcascade* aodCascade(0x0);
AliAODTrack* aodTrack(0x0);
Double_t momPos[3]={0.};
Double_t momNeg[3] = { 0. };
Double_t momPosAtV0vtx[3]={0.};
Double_t momNegAtV0vtx[3]={0.};
Int_t tofLabel[3] = {0};
TClonesArray& verticesArray = Vertices();
TClonesArray& tracksArray = Tracks();
TClonesArray& cascadesArray = Cascades();
// Cascades (Modified by A.Maire - February 2009)
for (Int_t nCascade = 0; nCascade < esd.GetNumberOfCascades(); ++nCascade) {
// 0- Preparation
//
AliESDcascade *esdCascade = esd.GetCascade(nCascade);
Int_t idxPosFromV0Dghter = esdCascade->GetPindex();
Int_t idxNegFromV0Dghter = esdCascade->GetNindex();
Int_t idxBachFromCascade = esdCascade->GetBindex();
AliESDtrack *esdCascadePos = esd.GetTrack( idxPosFromV0Dghter);
AliESDtrack *esdCascadeNeg = esd.GetTrack( idxNegFromV0Dghter);
AliESDtrack *esdCascadeBach = esd.GetTrack( idxBachFromCascade);
// Identification of the V0 within the esdCascade (via both daughter track indices)
AliESDv0 * currentV0 = 0x0;
Int_t idxV0FromCascade = -1;
for (Int_t iV0=0; iV0<esd.GetNumberOfV0s(); ++iV0) {
currentV0 = esd.GetV0(iV0);
// Fix added on 2018-09-18 (ALIROOT-7980)
// cascades are built only from offline V0 -> skip on-fly V0 in this loop
if(currentV0->GetOnFlyStatus()==kTRUE) continue;
Int_t posCurrentV0 = currentV0->GetPindex();
Int_t negCurrentV0 = currentV0->GetNindex();
if (posCurrentV0==idxPosFromV0Dghter && negCurrentV0==idxNegFromV0Dghter) {
idxV0FromCascade = iV0;
break;
}
}
if(idxV0FromCascade < 0){
printf("Cascade - no matching for the V0 (index V0 = -1) ! Skip ... \n");
continue;
}// a priori, useless check, but safer ... in case of pb with tracks "out of bounds"
AliESDv0 *esdV0FromCascade = esd.GetV0(idxV0FromCascade);
// 1 - Cascade selection
// AliESDVertex *esdPrimVtx = new AliESDVertex(*(esd.GetPrimaryVertex()));
// TList cascadeObjects;
// cascadeObjects.AddAt(esdV0FromCascade, 0);
// cascadeObjects.AddAt(esdCascadePos, 1);
// cascadeObjects.AddAt(esdCascadeNeg, 2);
// cascadeObjects.AddAt(esdCascade, 3);
// cascadeObjects.AddAt(esdCascadeBach, 4);
// cascadeObjects.AddAt(esdPrimVtx, 5);
//
// UInt_t selectCascade = 0;
// if (fCascadeFilter) {
// // selectCascade = fCascadeFilter->IsSelected(&cascadeObjects);
// // FIXME AliESDCascadeCuts to be implemented ...
//
// // Here we may encounter a moot point at the V0 level
// // between the cascade selections and the V0 ones :
// // the V0 selected along with the cascade (secondary V0) may
// // usually be removed from the dedicated V0 selections (prim V0) ...
// // -> To be discussed !
//
// // this is a little awkward but otherwise the
// // list wants to access the pointer (delete it)
// // again when going out of scope
// delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct
// esdPrimVtx = 0;
// if (!selectCascade)
// continue;
// }
// else{
// delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct
// esdPrimVtx = 0;
// }
// 2 - Add the cascade vertex
esdCascade->GetXYZcascade(pos[0], pos[1], pos[2]);
esdCascade->GetPosCovXi(covVtx);
chi2 = esdCascade->GetChi2Xi();
AliAODVertex *vCascade = new(verticesArray[fNumberOfVertices++]) AliAODVertex(pos,
covVtx,
chi2, // FIXME = Chi2/NDF will be needed
fPrimaryVertex,
nCascade, // id
AliAODVertex::kCascade);
fPrimaryVertex->AddDaughter(vCascade);
// 3 - Add the bachelor track from the cascade
if (!fUsedTrack[idxBachFromCascade]) {
esdCascadeBach->GetPxPyPz(momBach);
esdCascadeBach->GetXYZ(pos);
esdCascadeBach->GetCovarianceXYZPxPyPz(covTr);
// esdCascadeBach->GetESDpid(pid);
esdCascadeBach->GetTOFLabel(tofLabel);
fUsedTrack[idxBachFromCascade] = kTRUE;
UInt_t selectInfo = 0;
if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeBach);
if (fMChandler) fMChandler->SelectParticle(esdCascadeBach->GetLabel());
aodTrack = new(tracksArray[fNumberOfTracks++]) AliAODTrack(esdCascadeBach->GetID(),
esdCascadeBach->GetLabel(),
momBach,
kTRUE,
pos,
kFALSE, // Why kFALSE for "isDCA" ? FIXME
covTr,
(Short_t)esdCascadeBach->GetSign(),
esdCascadeBach->GetITSClusterMap(),
// pid,
vCascade,
kTRUE, // usedForVtxFit = kFALSE ? FIXME
vtx->UsesTrack(esdCascadeBach->GetID()),
AliAODTrack::kFromDecayVtx,
selectInfo);
aodTrack->SetITSSharedMap(esdCascadeBach->GetITSSharedMap());
aodTrack->SetITSchi2(esdCascadeBach->GetITSchi2());
aodTrack->SetPIDForTracking(esdCascadeBach->GetPIDForTracking());
aodTrack->SetTPCFitMap(esdCascadeBach->GetTPCFitMap());
aodTrack->SetTPCClusterMap(esdCascadeBach->GetTPCClusterMap());
aodTrack->SetTPCSharedMap (esdCascadeBach->GetTPCSharedMap());
aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadeBach));
aodTrack->SetTPCPointsF(esdCascadeBach->GetTPCNclsF());
aodTrack->SetTPCNCrossedRows(UShort_t(esdCascadeBach->GetTPCCrossedRows()));
aodTrack->SetIntegratedLength(esdCascadeBach->GetIntegratedLength());
aodTrack->SetTOFLabel(tofLabel);
CopyChi2TPCConstrainedVsGlobal(esdCascadeBach, aodTrack);
CopyCaloProps(esdCascadeBach,aodTrack);
fAODTrackRefs->AddAt(aodTrack,idxBachFromCascade);
if (esdCascadeBach->GetSign() > 0) ++fNumberOfPositiveTracks;
aodTrack->ConvertAliPIDtoAODPID();
aodTrack->SetFlags(esdCascadeBach->GetStatus());
SetAODPID(esdCascadeBach,aodTrack,detpid);
}
else {
aodTrack = static_cast<AliAODTrack*>( fAODTrackRefs->At(idxBachFromCascade) );
}
vCascade->AddDaughter(aodTrack);
// 4 - Add the V0 from the cascade.
// = V0vtx + both pos and neg daughter tracks + the aodV0 itself
//
if ( !fUsedV0[idxV0FromCascade] ) {
// 4.A - if VO structure hasn't been created yet
// 4.A.1 - Create the V0 vertex of the cascade
esdV0FromCascade->GetXYZ(pos[0], pos[1], pos[2]);
esdV0FromCascade->GetPosCov(covVtx);
chi2 = esdV0FromCascade->GetChi2V0(); // = chi2/NDF since NDF = 2*2-3 ?
vV0FromCascade = new(verticesArray[fNumberOfVertices++]) AliAODVertex(pos,
covVtx,
chi2,
vCascade,
idxV0FromCascade, //id of ESDv0
AliAODVertex::kV0);
// Note:
// one V0 can be used by several cascades.
// So, one AOD V0 vtx can have several parent vtx.
// This is not directly allowed by AliAODvertex.
// Setting the parent vtx (here = param "vCascade") doesn't lead to a crash
// but to a problem of consistency within AODEvent.
// -> See below paragraph 4.B, for the proposed treatment of such a case.
// Add the vV0FromCascade to the aodVOVtxRefs
fAODV0VtxRefs->AddAt(vV0FromCascade,idxV0FromCascade);
// 4.A.2 - Add the positive tracks from the V0
esdCascadePos->GetPxPyPz(momPos);
esdCascadePos->GetXYZ(pos);
esdCascadePos->GetCovarianceXYZPxPyPz(covTr);
// esdCascadePos->GetESDpid(pid);
esdCascadePos->GetTOFLabel(tofLabel);
if (!fUsedTrack[idxPosFromV0Dghter]) {
fUsedTrack[idxPosFromV0Dghter] = kTRUE;
UInt_t selectInfo = 0;
if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadePos);
if(fMChandler) fMChandler->SelectParticle(esdCascadePos->GetLabel());
aodTrack = new(tracksArray[fNumberOfTracks++]) AliAODTrack(esdCascadePos->GetID(),
esdCascadePos->GetLabel(),
momPos,
kTRUE,
pos,
kFALSE, // Why kFALSE for "isDCA" ? FIXME
covTr,
(Short_t)esdCascadePos->GetSign(),
esdCascadePos->GetITSClusterMap(),
//pid,
vV0FromCascade,
kTRUE, // usedForVtxFit = kFALSE ? FIXME
vtx->UsesTrack(esdCascadePos->GetID()),
AliAODTrack::kFromDecayVtx,
selectInfo);
aodTrack->SetITSSharedMap(esdCascadePos->GetITSSharedMap());
aodTrack->SetITSchi2(esdCascadePos->GetITSchi2());
aodTrack->SetPIDForTracking(esdCascadePos->GetPIDForTracking());
aodTrack->SetTPCFitMap(esdCascadePos->GetTPCFitMap());
aodTrack->SetTPCClusterMap(esdCascadePos->GetTPCClusterMap());
aodTrack->SetTPCSharedMap (esdCascadePos->GetTPCSharedMap());
aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadePos));
aodTrack->SetTPCPointsF(esdCascadePos->GetTPCNclsF());
aodTrack->SetTPCNCrossedRows(UShort_t(esdCascadePos->GetTPCCrossedRows()));
aodTrack->SetIntegratedLength(esdCascadePos->GetIntegratedLength());
aodTrack->SetTOFLabel(tofLabel);
CopyChi2TPCConstrainedVsGlobal(esdCascadePos, aodTrack);
CopyCaloProps(esdCascadePos,aodTrack);
fAODTrackRefs->AddAt(aodTrack,idxPosFromV0Dghter);
if (esdCascadePos->GetSign() > 0) ++fNumberOfPositiveTracks;
aodTrack->ConvertAliPIDtoAODPID();
aodTrack->SetFlags(esdCascadePos->GetStatus());
SetAODPID(esdCascadePos,aodTrack,detpid);
}
else {
aodTrack = static_cast<AliAODTrack*>(fAODTrackRefs->At(idxPosFromV0Dghter));
}
vV0FromCascade->AddDaughter(aodTrack);
// 4.A.3 - Add the negative tracks from the V0
esdCascadeNeg->GetPxPyPz(momNeg);
esdCascadeNeg->GetXYZ(pos);
esdCascadeNeg->GetCovarianceXYZPxPyPz(covTr);
// esdCascadeNeg->GetESDpid(pid);
esdCascadeNeg->GetTOFLabel(tofLabel);
if (!fUsedTrack[idxNegFromV0Dghter]) {
fUsedTrack[idxNegFromV0Dghter] = kTRUE;
UInt_t selectInfo = 0;
if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeNeg);
if (fMChandler)
fMChandler->SelectParticle(esdCascadeNeg->GetLabel());
aodTrack = new(tracksArray[fNumberOfTracks++]) AliAODTrack(esdCascadeNeg->GetID(),
esdCascadeNeg->GetLabel(),
momNeg,
kTRUE,
pos,
kFALSE, // Why kFALSE for "isDCA" ? FIXME
covTr,
(Short_t)esdCascadeNeg->GetSign(),
esdCascadeNeg->GetITSClusterMap(),
// pid,
vV0FromCascade,
kTRUE, // usedForVtxFit = kFALSE ? FIXME
vtx->UsesTrack(esdCascadeNeg->GetID()),
AliAODTrack::kFromDecayVtx,
selectInfo);
aodTrack->SetITSSharedMap(esdCascadeNeg->GetITSSharedMap());
aodTrack->SetITSchi2(esdCascadeNeg->GetITSchi2());
aodTrack->SetPIDForTracking(esdCascadeNeg->GetPIDForTracking());
aodTrack->SetTPCFitMap(esdCascadeNeg->GetTPCFitMap());
aodTrack->SetTPCClusterMap(esdCascadeNeg->GetTPCClusterMap());
aodTrack->SetTPCSharedMap (esdCascadeNeg->GetTPCSharedMap());
aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadeNeg));
aodTrack->SetTPCPointsF(esdCascadeNeg->GetTPCNclsF());
aodTrack->SetTPCNCrossedRows(UShort_t(esdCascadeNeg->GetTPCCrossedRows()));
aodTrack->SetIntegratedLength(esdCascadeNeg->GetIntegratedLength());
aodTrack->SetTOFLabel(tofLabel);
CopyChi2TPCConstrainedVsGlobal(esdCascadeNeg, aodTrack);
CopyCaloProps(esdCascadeNeg,aodTrack);
fAODTrackRefs->AddAt(aodTrack,idxNegFromV0Dghter);
if (esdCascadeNeg->GetSign() > 0) ++fNumberOfPositiveTracks;
aodTrack->ConvertAliPIDtoAODPID();
aodTrack->SetFlags(esdCascadeNeg->GetStatus());
SetAODPID(esdCascadeNeg,aodTrack,detpid);
}
else {
aodTrack = static_cast<AliAODTrack*>(fAODTrackRefs->At(idxNegFromV0Dghter));
}
vV0FromCascade->AddDaughter(aodTrack);
// 4.A.4 - Add the V0 from cascade to the V0 array
Double_t dcaV0Daughters = esdV0FromCascade->GetDcaV0Daughters();
Double_t dcaV0ToPrimVertex = esdV0FromCascade->GetD(esd.GetPrimaryVertex()->GetX(),
esd.GetPrimaryVertex()->GetY(),
esd.GetPrimaryVertex()->GetZ() );
esdV0FromCascade->GetPPxPyPz( momPosAtV0vtx[0],momPosAtV0vtx[1],momPosAtV0vtx[2] );
esdV0FromCascade->GetNPxPyPz( momNegAtV0vtx[0],momNegAtV0vtx[1],momNegAtV0vtx[2] );
Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = DCA in (x,y) for Pos and ..[1] = Neg
dcaDaughterToPrimVertex[0] = TMath::Abs(esdCascadePos->GetD(esd.GetPrimaryVertex()->GetX(),
esd.GetPrimaryVertex()->GetY(),
esd.GetMagneticField()) );
dcaDaughterToPrimVertex[1] = TMath::Abs(esdCascadeNeg->GetD(esd.GetPrimaryVertex()->GetX(),
esd.GetPrimaryVertex()->GetY(),
esd.GetMagneticField()) );
aodV0 = new(V0s()[fNumberOfV0s++]) AliAODv0(vV0FromCascade,
dcaV0Daughters,
dcaV0ToPrimVertex,
momPosAtV0vtx,
momNegAtV0vtx,
dcaDaughterToPrimVertex);
// set the aod v0 on-the-fly status
aodV0->SetOnFlyStatus(esdV0FromCascade->GetOnFlyStatus());
// Add the aodV0 to the aodVORefs
fAODV0Refs->AddAt(aodV0,idxV0FromCascade);
fUsedV0[idxV0FromCascade] = kTRUE;
} else {
// 4.B - if V0 structure already used
// Note :
// one V0 can be used by several cascades (frequent in PbPb evts) :
// same V0 which used but attached to different bachelor tracks
// -> aodVORefs and fAODV0VtxRefs are needed.
// Goal : avoid a redundancy of the info in "Vertices" and "v0s" clones array.
vV0FromCascade = static_cast<AliAODVertex*>(fAODV0VtxRefs->At(idxV0FromCascade));
aodV0 = static_cast<AliAODv0*> (fAODV0Refs ->At(idxV0FromCascade));
// - Treatment of the parent for such a "re-used" V0 :
// Insert the cascade that reuses the V0 vertex in the lineage chain
// Before : vV0 -> vCascade1 -> vPrimary
// - Hyp : cascade2 uses the same V0 as cascade1
// After : vV0 -> vCascade2 -> vCascade1 -> vPrimary
AliAODVertex *vCascadePreviousParent = static_cast<AliAODVertex*> (vV0FromCascade->GetParent());
vV0FromCascade->SetParent(vCascade);
vCascade ->SetParent(vCascadePreviousParent);
}// end if V0 structure already used
// In any case (used V0 or not), add the V0 vertex to the cascade one.
vCascade->AddDaughter(vV0FromCascade);
// 5 - Add the primary track of the cascade (if any)
// 6 - Add the cascade to the AOD array of cascades
Double_t dcaBachToPrimVertexXY = TMath::Abs(esdCascadeBach->GetD(esd.GetPrimaryVertex()->GetX(),
esd.GetPrimaryVertex()->GetY(),
esd.GetMagneticField()) );
Double_t momBachAtCascadeVtx[3]={0.};
esdCascade->GetBPxPyPz(momBachAtCascadeVtx[0], momBachAtCascadeVtx[1], momBachAtCascadeVtx[2]);
//Add background rejection variable needed for cascades in Pb-Pb
Double_t lBachBaryonCosPA = 0;
if(esdCascade->Charge()<0.){
lBachBaryonCosPA = GetCosPA(esdCascadePos,esdCascadeBach,esd.GetMagneticField(), lPVpos);
}else{
lBachBaryonCosPA = GetCosPA(esdCascadeNeg,esdCascadeBach,esd.GetMagneticField(), lPVpos);
}
aodCascade = new(cascadesArray[fNumberOfCascades++]) AliAODcascade(vCascade,
esdCascade->Charge(),
esdCascade->GetDcaXiDaughters(),
-999.,
// DCAXiToPrimVtx -> needs to be calculated ----|
// doesn't exist at ESD level;
// See AODcascade::DcaXiToPrimVertex(Double, Double, Double)
dcaBachToPrimVertexXY,
momBachAtCascadeVtx,
*aodV0,
lBachBaryonCosPA);
aodCascade->SetBit(AliAODcascade::kOnFlyCascadesFixed);
if (fDebug > 10) {
printf("---- Cascade / AOD cascade : \n\n");
aodCascade->PrintXi(fPrimaryVertex->GetX(), fPrimaryVertex->GetY(), fPrimaryVertex->GetZ());
}
} // end of the loop on cascades
Cascades().Expand(fNumberOfCascades);
}
//______________________________________________________________________________
void AliAnalysisTaskESDfilter::ConvertV0s(const AliESDEvent& esd)
{
/// Access to the AOD container of V0s
AliCodeTimerAuto("",0);
//
// V0s
//
Double_t pos[3] = { 0. };
Double_t chi2(0.0);
Double_t covVtx[6] = { 0. };
Double_t momPos[3]={0.};
Double_t covTr[21]={0.};
// Double_t pid[10]={0.};
AliAODTrack* aodTrack(0x0);
AliAODPid* detpid(0x0);
Double_t momNeg[3]={0.};
Double_t momPosAtV0vtx[3]={0.};
Double_t momNegAtV0vtx[3]={0.};
Int_t tofLabel[3] = {0};
if (fAddPCMv0s){
fbitfieldPCMv0sA = (TBits*) GetInputData(1);
fbitfieldPCMv0sB = (TBits*) GetInputData(2);
}
UInt_t posInt;
for (Int_t nV0 = 0; nV0 < esd.GetNumberOfV0s(); ++nV0) {
if (fAddPCMv0s) {posInt = (UInt_t) nV0;}
if (fUsedV0[nV0]) {
if(fbitfieldPCMv0sA){
if(fbitfieldPCMv0sA->TestBitNumber(posInt) && posInt <= fbitfieldPCMv0sA->GetNbits()){
fv0Histos->Fill(5);
fv0Histos->Fill(1);
}
}
if(fbitfieldPCMv0sB){
if(fbitfieldPCMv0sB->TestBitNumber(posInt) && posInt <= fbitfieldPCMv0sB->GetNbits()){
fv0Histos->Fill(6);
fv0Histos->Fill(2);
}
}
continue; // skip if already added to the AOD
}
AliESDv0 *v0 = esd.GetV0(nV0);
Int_t posFromV0 = v0->GetPindex();
Int_t negFromV0 = v0->GetNindex();
// V0 selection
//
AliESDVertex *esdVtx = new AliESDVertex(*(esd.GetPrimaryVertex()));
AliESDtrack *esdV0Pos = esd.GetTrack(posFromV0);
AliESDtrack *esdV0Neg = esd.GetTrack(negFromV0);
TList v0objects;
v0objects.AddAt(v0, 0);