#include <TObjArray.h>
#include <TPRegexp.h>
#include <TF1.h>
+#include <TH2D.h>
#include <TSpline.h>
#include <TFile.h>
#include <TArrayI.h>
#include <TArrayF.h>
+#include <TLinearFitter.h>
#include <AliVEvent.h>
#include <AliVTrack.h>
fRange(5.),
fITSPIDmethod(kITSTruncMean),
fIsMC(isMC),
+fCachePID(kTRUE),
fOADBPath(),
fCustomTPCpidResponse(),
fBeamType("PP"),
fRecoPassUser(-1),
fRun(0),
fOldRun(0),
+fResT0A(75.),
+fResT0C(65.),
+fResT0AC(55.),
fArrPidResponseMaster(NULL),
fResolutionCorrection(NULL),
fOADBvoltageMaps(NULL),
+fUseTPCEtaCorrection(kFALSE),//TODO: In future, default kTRUE
fTRDPIDResponseObject(NULL),
fTOFtail(1.1),
fTOFPIDParams(NULL),
fRange(other.fRange),
fITSPIDmethod(other.fITSPIDmethod),
fIsMC(other.fIsMC),
+fCachePID(other.fCachePID),
fOADBPath(other.fOADBPath),
fCustomTPCpidResponse(other.fCustomTPCpidResponse),
fBeamType("PP"),
fRecoPassUser(other.fRecoPassUser),
fRun(0),
fOldRun(0),
+fResT0A(75.),
+fResT0C(65.),
+fResT0AC(55.),
fArrPidResponseMaster(NULL),
fResolutionCorrection(NULL),
fOADBvoltageMaps(NULL),
+fUseTPCEtaCorrection(other.fUseTPCEtaCorrection),
fTRDPIDResponseObject(NULL),
fTOFtail(1.1),
fTOFPIDParams(NULL),
fOADBPath=other.fOADBPath;
fCustomTPCpidResponse=other.fCustomTPCpidResponse;
fIsMC=other.fIsMC;
+ fCachePID=other.fCachePID;
fBeamType="PP";
fLHCperiod="";
fMCperiodTPC="";
fRecoPassUser=other.fRecoPassUser;
fRun=0;
fOldRun=0;
+ fResT0A=75.;
+ fResT0C=65.;
+ fResT0AC=55.;
fArrPidResponseMaster=NULL;
fResolutionCorrection=NULL;
fOADBvoltageMaps=NULL;
+ fUseTPCEtaCorrection=other.fUseTPCEtaCorrection;
fTRDPIDResponseObject=NULL;
fEMCALPIDParams=NULL;
fTOFtail=1.1;
}
//______________________________________________________________________________
-Float_t AliPIDResponse::NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const
+Float_t AliPIDResponse::NumberOfSigmas(EDetector detector, const AliVParticle *vtrack, AliPID::EParticleType type) const
{
//
// NumberOfSigmas for 'detCode'
//
-
- switch (detCode){
- case kDetITS: return NumberOfSigmasITS(track, type); break;
- case kDetTPC: return NumberOfSigmasTPC(track, type); break;
- case kDetTOF: return NumberOfSigmasTOF(track, type); break;
- case kDetEMCAL: return NumberOfSigmasEMCAL(track, type); break;
- default: return -999.;
+
+ const AliVTrack *track=static_cast<const AliVTrack*>(vtrack);
+ // look for cached value first
+ const AliDetectorPID *detPID=track->GetDetectorPID();
+
+ if ( detPID && detPID->HasNumberOfSigmas(detector)){
+ return detPID->GetNumberOfSigmas(detector, type);
+ } else if (fCachePID) {
+ FillTrackDetectorPID(track, detector);
+ detPID=track->GetDetectorPID();
+ return detPID->GetNumberOfSigmas(detector, type);
}
-
+
+ return GetNumberOfSigmas(detector, track, type);
}
//______________________________________________________________________________
-Float_t AliPIDResponse::NumberOfSigmas(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type) const
+AliPIDResponse::EDetPidStatus AliPIDResponse::NumberOfSigmas(EDetector detCode, const AliVParticle *track,
+ AliPID::EParticleType type, Double_t &val) const
{
//
- // NumberOfSigmas for 'detCode'
+ // NumberOfSigmas with detector status as return value
//
- return NumberOfSigmas((EDetCode)(1<<detCode), track, type);
+
+ val=NumberOfSigmas(detCode, track, type);
+ return CheckPIDStatus(detCode, (AliVTrack*)track);
}
+//______________________________________________________________________________
+// public buffered versions of the PID calculation
+//
+
//______________________________________________________________________________
Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const
{
// Calculate the number of sigmas in the ITS
//
- AliVTrack *track=(AliVTrack*)vtrack;
-
- // look for cached value first
- // only the non SA tracks are cached
- if ( track->GetDetectorPID() ){
- return track->GetDetectorPID()->GetNumberOfSigmas(kITS, type);
- }
-
- Float_t dEdx=track->GetITSsignal();
- if (dEdx<=0) return -999.;
-
- UChar_t clumap=track->GetITSClusterMap();
- Int_t nPointsForPid=0;
- for(Int_t i=2; i<6; i++){
- if(clumap&(1<<i)) ++nPointsForPid;
- }
- Float_t mom=track->P();
-
- //check for ITS standalone tracks
- Bool_t isSA=kTRUE;
- if( track->GetStatus() & AliVTrack::kTPCin ) isSA=kFALSE;
-
- //TODO: in case of the electron, use the SA parametrisation,
- // this needs to be changed if ITS provides a parametrisation
- // for electrons also for ITS+TPC tracks
- return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA || (type==AliPID::kElectron));
+ return NumberOfSigmas(kITS, vtrack, type);
}
//______________________________________________________________________________
// Calculate the number of sigmas in the TPC
//
- AliVTrack *track=(AliVTrack*)vtrack;
-
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetNumberOfSigmas(kTPC, type);
- }
-
- Double_t mom = track->GetTPCmomentum();
- Double_t sig = track->GetTPCsignal();
- UInt_t sigN = track->GetTPCsignalN();
-
- Double_t nSigma = -999.;
- if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
-
- return nSigma;
+ return NumberOfSigmas(kTPC, vtrack, type);
}
//______________________________________________________________________________
Float_t AliPIDResponse::NumberOfSigmasTPC( const AliVParticle *vtrack,
AliPID::EParticleType type,
- AliTPCPIDResponse::ETPCdEdxSource dedxSource)
+ AliTPCPIDResponse::ETPCdEdxSource dedxSource) const
{
//get number of sigmas according the selected TPC gain configuration scenario
const AliVTrack *track=static_cast<const AliVTrack*>(vtrack);
- Float_t nSigma=fTPCResponse.GetNumberOfSigmas(track, type, dedxSource);
+// return 0.;
+ Float_t nSigma=fTPCResponse.GetNumberOfSigmas(track, type, dedxSource, fUseTPCEtaCorrection);
return nSigma;
}
//______________________________________________________________________________
-Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVParticle *vtrack, AliPID::EParticleType type) const
+Float_t AliPIDResponse::NumberOfSigmasTOF(const AliVParticle *vtrack, AliPID::EParticleType type) const
{
//
- // Calculate the number of sigmas in the EMCAL
+ // Calculate the number of sigmas in the TOF
//
- AliVTrack *track=(AliVTrack*)vtrack;
-
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetNumberOfSigmas(kEMCAL, type);
- }
-
- AliVCluster *matchedClus = NULL;
+ return NumberOfSigmas(kTOF, vtrack, type);
+}
- Double_t mom = -1.;
- Double_t pt = -1.;
- Double_t EovP = -1.;
- Double_t fClsE = -1.;
-
- Int_t nMatchClus = -1;
- Int_t charge = 0;
-
- // Track matching
- nMatchClus = track->GetEMCALcluster();
- if(nMatchClus > -1){
-
- mom = track->P();
- pt = track->Pt();
- charge = track->Charge();
-
- matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus);
-
- if(matchedClus){
-
- // matched cluster is EMCAL
- if(matchedClus->IsEMCAL()){
-
- fClsE = matchedClus->E();
- EovP = fClsE/mom;
-
-
- // NSigma value really meaningful only for electrons!
- return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge);
- }
- }
- }
-
- return -999;
+//______________________________________________________________________________
+Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // Calculate the number of sigmas in the EMCAL
+ //
+ return NumberOfSigmas(kEMCAL, vtrack, type);
}
//______________________________________________________________________________
-Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVParticle *vtrack, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const {
-
+Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVParticle *vtrack, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const
+{
+ //
+ // emcal nsigma with eop and showershape
+ //
AliVTrack *track=(AliVTrack*)vtrack;
AliVCluster *matchedClus = NULL;
showershape[1] = matchedClus->GetM02(); // long axis
showershape[2] = matchedClus->GetM20(); // short axis
showershape[3] = matchedClus->GetDispersion(); // dispersion
-
- // NSigma value really meaningful only for electrons!
- return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge);
+
+ // look for cached value first
+ const AliDetectorPID *detPID=track->GetDetectorPID();
+ const EDetector detector=kEMCAL;
+
+ if ( detPID && detPID->HasNumberOfSigmas(detector)){
+ return detPID->GetNumberOfSigmas(detector, type);
+ } else if (fCachePID) {
+ FillTrackDetectorPID(track, detector);
+ detPID=track->GetDetectorPID();
+ return detPID->GetNumberOfSigmas(detector, type);
+ }
+
+ // NSigma value really meaningful only for electrons!
+ return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge);
}
}
}
return -999;
}
-
//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
{
- //
// Compute PID response of 'detCode'
- //
+
+ // find detector code from detector bit mask
+ Int_t detector=-1;
+ for (Int_t idet=0; idet<kNdetectors; ++idet) if ( (detCode&(1<<idet)) ) { detector=idet; break; }
+ if (detector==-1) return kDetNoSignal;
- switch (detCode){
- case kDetITS: return ComputeITSProbability(track, nSpecies, p); break;
- case kDetTPC: return ComputeTPCProbability(track, nSpecies, p); break;
- case kDetTRD: return ComputeTRDProbability(track, nSpecies, p); break;
- case kDetTOF: return ComputeTOFProbability(track, nSpecies, p); break;
- case kDetPHOS: return ComputePHOSProbability(track, nSpecies, p); break;
- case kDetEMCAL: return ComputeEMCALProbability(track, nSpecies, p); break;
- case kDetHMPID: return ComputeHMPIDProbability(track, nSpecies, p); break;
- default: return kDetNoSignal;
- }
+ return ComputePIDProbability((EDetector)detector, track, nSpecies, p);
}
//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetector detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetector detector, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
{
//
- // Compute PID response of 'detCode'
+ // Compute PID response of 'detector'
//
- return ComputePIDProbability((EDetCode)(1<<detCode),track,nSpecies,p);
+ const AliDetectorPID *detPID=track->GetDetectorPID();
+
+ if ( detPID && detPID->HasRawProbability(detector)){
+ return detPID->GetRawProbability(detector, p, nSpecies);
+ } else if (fCachePID) {
+ FillTrackDetectorPID(track, detector);
+ detPID=track->GetDetectorPID();
+ return detPID->GetRawProbability(detector, p, nSpecies);
+ }
+
+ //if no caching return values calculated from scratch
+ return GetComputePIDProbability(detector, track, nSpecies, p);
}
//______________________________________________________________________________
AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
{
- //
// Compute PID response for the ITS
- //
+ return ComputePIDProbability(kITS, track, nSpecies, p);
+}
- // look for cached value first
- // only the non SA tracks are cached
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetRawProbability(kITS, p, nSpecies);
- }
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the TPC
+ return ComputePIDProbability(kTPC, track, nSpecies, p);
+}
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the
+ return ComputePIDProbability(kTOF, track, nSpecies, p);
+}
- if ((track->GetStatus()&AliVTrack::kITSin)==0 &&
- (track->GetStatus()&AliVTrack::kITSout)==0) return kDetNoSignal;
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the
+ return ComputePIDProbability(kTRD, track, nSpecies, p);
+}
- //check for ITS standalone tracks
- Bool_t isSA=kTRUE;
- if( track->GetStatus() & AliVTrack::kTPCin ) isSA=kFALSE;
-
- Double_t mom=track->P();
- Double_t dedx=track->GetITSsignal();
- Double_t momITS=mom;
- UChar_t clumap=track->GetITSClusterMap();
- Int_t nPointsForPid=0;
- for(Int_t i=2; i<6; i++){
- if(clumap&(1<<i)) ++nPointsForPid;
- }
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the EMCAL
+ return ComputePIDProbability(kEMCAL, track, nSpecies, p);
+}
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the PHOS
- if(nPointsForPid<3) { // track not to be used for combined PID purposes
- // track->ResetStatus(AliVTrack::kITSpid);
- return kDetNoSignal;
- }
-
- Bool_t mismatch=kTRUE/*, heavy=kTRUE*/;
- for (Int_t j=0; j<AliPID::kSPECIES; j++) {
- Double_t mass=AliPID::ParticleMassZ(j);//GeV/c^2
- const Double_t chargeFactor = TMath::Power(AliPID::ParticleCharge(j),2.);
- Double_t bethe=fITSResponse.Bethe(momITS,mass)*chargeFactor;
- //TODO: in case of the electron, use the SA parametrisation,
- // this needs to be changed if ITS provides a parametrisation
- // for electrons also for ITS+TPC tracks
- Double_t sigma=fITSResponse.GetResolution(bethe,nPointsForPid,isSA || (j==(Int_t)AliPID::kElectron));
- if (TMath::Abs(dedx-bethe) > fRange*sigma) {
- p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
- } else {
- p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
- mismatch=kFALSE;
- }
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+ return kDetNoSignal;
+}
- // Check for particles heavier than (AliPID::kSPECIES - 1)
- // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE;
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ // Compute PID response for the HMPID
+ return ComputePIDProbability(kHMPID, track, nSpecies, p);
+}
- }
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod) const
+{
+ // Compute PID response for the
+ return GetComputeTRDProbability(track, nSpecies, p, PIDmethod);
+}
- if (mismatch){
- for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES;
- return kDetNoSignal;
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::CheckPIDStatus(EDetector detector, const AliVTrack *track) const
+{
+ // calculate detector pid status
+
+ const Int_t iDetCode=(Int_t)detector;
+ if (iDetCode<0||iDetCode>=kNdetectors) return kDetNoSignal;
+ const AliDetectorPID *detPID=track->GetDetectorPID();
+
+ if ( detPID ){
+ return detPID->GetPIDStatus(detector);
+ } else if (fCachePID) {
+ FillTrackDetectorPID(track, detector);
+ detPID=track->GetDetectorPID();
+ return detPID->GetPIDStatus(detector);
}
-
-
- return kDetPidOk;
+
+ // if not buffered and no buffering is requested
+ return GetPIDStatus(detector, track);
}
+
//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass, Int_t run)
{
//
- // Compute PID response for the TPC
+ // Apply settings for the current event
//
+ fRecoPass=pass;
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetRawProbability(kTPC, p, nSpecies);
+
+ fCurrentEvent=NULL;
+ if (!event) return;
+ fCurrentEvent=event;
+ if (run>0) fRun=run;
+ else fRun=event->GetRunNumber();
+
+ if (fRun!=fOldRun){
+ ExecNewRun();
+ fOldRun=fRun;
}
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
-
- // check quality of the track
- if ( (track->GetStatus()&AliVTrack::kTPCin )==0 && (track->GetStatus()&AliVTrack::kTPCout)==0 ) return kDetNoSignal;
-
- Double_t mom = track->GetTPCmomentum();
-
- Double_t dedx=track->GetTPCsignal();
- Bool_t mismatch=kTRUE/*, heavy=kTRUE*/;
+ //TPC resolution parametrisation PbPb
+ if ( fResolutionCorrection ){
+ Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event));
+ fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04);
+ }
+
+ //TOF resolution
+ SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFPIDParams->GetStartTimeMethod());
- if(fTuneMConData) dedx = this->GetTPCsignalTunedOnData(track);
- for (Int_t j=0; j<AliPID::kSPECIESC; j++) {
- AliPID::EParticleType type=AliPID::EParticleType(j);
- Double_t bethe=fTPCResponse.GetExpectedSignal(mom,type);
- Double_t sigma=fTPCResponse.GetExpectedSigma(mom,track->GetTPCsignalN(),type);
- if (TMath::Abs(dedx-bethe) > fRange*sigma) {
- p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
- } else {
- p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
- mismatch=kFALSE;
- }
+ // Get and set centrality
+ AliCentrality *centrality = event->GetCentrality();
+ if(centrality){
+ fCurrCentrality = centrality->GetCentralityPercentile("V0M");
}
-
- if (mismatch){
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
- return kDetNoSignal;
+ else{
+ fCurrCentrality = -1;
}
-
- return kDetPidOk;
}
+
//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+void AliPIDResponse::ExecNewRun()
{
//
- // Compute PID response for the
- //
-
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetRawProbability(kTOF, p, nSpecies);
- }
-
- Double_t meanCorrFactor = 0.11/fTOFtail; // Correction factor on the mean because of the tail (should be ~ 0.1 with tail = 1.1)
-
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
-
- if ((track->GetStatus()&AliVTrack::kTOFout)==0) return kDetNoSignal;
- if ((track->GetStatus()&AliVTrack::kTIME)==0) return kDetNoSignal;
-
- Bool_t mismatch = kTRUE/*, heavy = kTRUE*/;
- for (Int_t j=0; j<AliPID::kSPECIESC; j++) {
- AliPID::EParticleType type=AliPID::EParticleType(j);
- Double_t nsigmas=NumberOfSigmasTOF(track,type) + meanCorrFactor;
-
- Double_t expTime = fTOFResponse.GetExpectedSignal(track,type);
- Double_t sig = fTOFResponse.GetExpectedSigma(track->P(),expTime,AliPID::ParticleMassZ(type));
- if (TMath::Abs(nsigmas) > (fRange+2)) {
- if(nsigmas < fTOFtail)
- p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig;
- else
- p[j] = TMath::Exp(-(fRange+2 - fTOFtail*0.5)*fTOFtail)/sig;
- } else{
- if(nsigmas < fTOFtail)
- p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig;
- else
- p[j] = TMath::Exp(-(nsigmas - fTOFtail*0.5)*fTOFtail)/sig;
- }
-
- if (TMath::Abs(nsigmas)<5.){
- Double_t nsigmasTPC=NumberOfSigmasTPC(track,type);
- if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE;
- }
- }
-
- if (mismatch){
- return kDetMismatch;
- }
-
- // TODO: Light nuclei
-
- return kDetPidOk;
-}
-//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod) const
-{
- //
- // Compute PID response for the
- //
- // look for cached value first
- if (track->GetDetectorPID()&&PIDmethod==AliTRDPIDResponse::kLQ1D){
- AliDebug(3,"Return Cached Value");
- return track->GetDetectorPID()->GetRawProbability(kTRD, p, nSpecies);
- }
-
- UInt_t TRDslicesForPID[2];
- SetTRDSlices(TRDslicesForPID,PIDmethod);
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
- if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal;
-
- Float_t mom[6]={0.};
- Double_t dedx[48]={0.}; // Allocate space for the maximum number of TRD slices
- Int_t nslices = TRDslicesForPID[1] - TRDslicesForPID[0] + 1;
- AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", TRDslicesForPID[0], TRDslicesForPID[1], nslices));
- for(UInt_t ilayer = 0; ilayer < 6; ilayer++){
- mom[ilayer] = track->GetTRDmomentum(ilayer);
- for(UInt_t islice = TRDslicesForPID[0]; islice <= TRDslicesForPID[1]; islice++){
- dedx[ilayer*nslices+islice-TRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice);
- }
- }
- fTRDResponse.GetResponse(nslices, dedx, mom, p,PIDmethod);
- return kDetPidOk;
-}
-//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
-{
- //
- // Compute PID response for the EMCAL
- //
-
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetRawProbability(kEMCAL, p, nSpecies);
- }
-
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
-
- AliVCluster *matchedClus = NULL;
-
- Double_t mom = -1.;
- Double_t pt = -1.;
- Double_t EovP = -1.;
- Double_t fClsE = -1.;
-
- Int_t nMatchClus = -1;
- Int_t charge = 0;
-
- // Track matching
- nMatchClus = track->GetEMCALcluster();
-
- if(nMatchClus > -1){
-
- mom = track->P();
- pt = track->Pt();
- charge = track->Charge();
-
- matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus);
-
- if(matchedClus){
-
- // matched cluster is EMCAL
- if(matchedClus->IsEMCAL()){
-
- fClsE = matchedClus->E();
- EovP = fClsE/mom;
-
-
- // compute the probabilities
- if(fEMCALResponse.ComputeEMCALProbability(nSpecies,pt,EovP,charge,p)){
-
- // in case everything is OK
- return kDetPidOk;
- }
- }
- }
- }
-
- // in all other cases set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j] = 1./nSpecies;
- return kDetNoSignal;
-
-}
-//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const
-{
- //
- // Compute PID response for the PHOS
- //
-
- // look for cached value first
-// if (track->GetDetectorPID()){
-// return track->GetDetectorPID()->GetRawProbability(kPHOS, p, nSpecies);
-// }
-
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
- return kDetNoSignal;
-}
-//______________________________________________________________________________
-AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
-{
- //
- // Compute PID response for the HMPID
- //
-
-
- // look for cached value first
- if (track->GetDetectorPID()){
- return track->GetDetectorPID()->GetRawProbability(kHMPID, p, nSpecies);
- }
-
- // set flat distribution (no decision)
- for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
- if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal;
-
- track->GetHMPIDpid(p);
-
- return kDetPidOk;
-}
-
-//______________________________________________________________________________
-void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass, Int_t run)
-{
- //
- // Apply settings for the current event
- //
- fRecoPass=pass;
-
- fCurrentEvent=NULL;
- if (!event) return;
- fCurrentEvent=event;
- if (run>0) fRun=run;
- else fRun=event->GetRunNumber();
-
- if (fRun!=fOldRun){
- ExecNewRun();
- fOldRun=fRun;
- }
-
- //TPC resolution parametrisation PbPb
- if ( fResolutionCorrection ){
- Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event));
- fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04);
- }
-
- //TOF resolution
- SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFPIDParams->GetStartTimeMethod());
-
-
- // Get and set centrality
- AliCentrality *centrality = event->GetCentrality();
- if(centrality){
- fCurrCentrality = centrality->GetCentralityPercentile("V0M");
- }
- else{
- fCurrCentrality = -1;
- }
-}
-
-//______________________________________________________________________________
-void AliPIDResponse::ExecNewRun()
-{
- //
- // Things to Execute upon a new run
+ // Things to Execute upon a new run
//
SetRecoInfo();
SetTPCPidResponseMaster();
SetTPCParametrisation();
+ SetTPCEtaMaps();
SetTRDPidResponseMaster();
InitializeTRDResponse();
if (fCurrentEvent) fTPCResponse.SetMagField(fCurrentEvent->GetMagneticField());
}
-//_____________________________________________________
+//______________________________________________________________________________
Double_t AliPIDResponse::GetTPCMultiplicityBin(const AliVEvent * const event)
{
//
fBeamType="PP";
TPRegexp reg(".*(LHC1[1-2][a-z]+[0-9]+[a-z_]*)/.*");
- TPRegexp reg12a17(".*(LHC12a17[a-z]+)/.*");
+ TPRegexp reg12a17("LHC1[2-3][a-z]");
//find the period by run number (UGLY, but not stored in ESD and AOD... )
if (fRun>=114737&&fRun<=117223) { fLHCperiod="LHC10B"; fMCperiodTPC="LHC10D1"; }
else if (fRun>=127710&&fRun<=130850) { fLHCperiod="LHC10E"; fMCperiodTPC="LHC10F6A"; }
else if (fRun>=133004&&fRun<=135029) { fLHCperiod="LHC10F"; fMCperiodTPC="LHC10F6A"; }
else if (fRun>=135654&&fRun<=136377) { fLHCperiod="LHC10G"; fMCperiodTPC="LHC10F6A"; }
- else if (fRun>=136851&&fRun<=139517) {
+ else if (fRun>=136851&&fRun<=139846) {
fLHCperiod="LHC10H";
fMCperiodTPC="LHC10H8";
if (reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11A10";
fBeamType="PBPB";
}
- else if (fRun>=139699&&fRun<=146860) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; }
- //TODO: periods 11B, 11C are not yet treated assume 11d for the moment
- else if (fRun>=148531&&fRun<=155384) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
- else if (fRun>=156477&&fRun<=159635) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
- // also for 11e,f use 11d
- else if (fRun>=160676&&fRun<=162740) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
- else if (fRun>=162933&&fRun<=165746) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
-
- else if (fRun>=166529) {
+ else if (fRun>=139847&&fRun<=146974) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; }
+ //TODO: periods 11B (146975-150721), 11C (150722-155837) are not yet treated assume 11d for the moment
+ else if (fRun>=146975&&fRun<=155837) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
+ else if (fRun>=155838&&fRun<=159649) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
+ // also for 11e (159650-162750),f(162751-165771) use 11d
+ else if (fRun>=159650&&fRun<=162750) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
+ else if (fRun>=162751&&fRun<=165771) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; }
+
+ else if (fRun>=165772 && fRun<=170718) {
fLHCperiod="LHC11H";
fMCperiodTPC="LHC11A10";
fBeamType="PBPB";
if (reg12a17.MatchB(fCurrentFile)) fMCperiodTPC="LHC12A17";
}
-
- if (fRun >= 188356 /*&& fRun <= 188503*/ ) { fLHCperiod="LHC12G"; fBeamType="PPB"; /*fMCperiodTPC="";*/ }
+ if (fRun>=170719 && fRun<=177311) { fLHCperiod="LHC12A"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+ // for the moment use LHC12b parameters up to LHC12e
+ if (fRun>=177312 /*&& fRun<=179356*/) { fLHCperiod="LHC12B"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+// if (fRun>=179357 && fRun<=183173) { fLHCperiod="LHC12C"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+// if (fRun>=183174 && fRun<=186345) { fLHCperiod="LHC12D"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+// if (fRun>=186346 && fRun<=186635) { fLHCperiod="LHC12E"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+
+// if (fRun>=186636 && fRun<=188166) { fLHCperiod="LHC12F"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+// if (fRun >= 188167 && fRun <= 188355 ) { fLHCperiod="LHC12G"; fBeamType="PP"; /*fMCperiodTPC="";*/ }
+// if (fRun >= 188356 && fRun <= 188503 ) { fLHCperiod="LHC12G"; fBeamType="PPB"; /*fMCperiodTPC="";*/ }
+// for the moment use 12g parametrisation for all full gain runs (LHC12f+)
+ if (fRun >= 186636 && fRun < 194480) { fLHCperiod="LHC12G"; fBeamType="PPB"; fMCperiodTPC="LHC12G"; }
+ if (fRun >= 194480) { fLHCperiod="LHC13B"; fBeamType="PPB"; fMCperiodTPC="LHC12G"; }
//exception new pp MC productions from 2011
- if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11B2";
+ if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) { fMCperiodTPC="LHC11B2"; fBeamType="PP"; }
// exception for 11f1
if (fCurrentFile.Contains("LHC11f1/")) fMCperiodTPC="LHC11F1";
+ // exception for 12f1a, 12f1b and 12i3
+ if (fCurrentFile.Contains("LHC12f1a/") || fCurrentFile.Contains("LHC12f1b/")
+ || fCurrentFile.Contains("LHC12i3/")) fMCperiodTPC="LHC12F1";
+ // exception for 12c4
+ if (fCurrentFile.Contains("LHC12c4/")) fMCperiodTPC="LHC12C4";
}
//______________________________________________________________________________
//
}
+
//______________________________________________________________________________
-void AliPIDResponse::SetTPCPidResponseMaster()
+void AliPIDResponse::AddPointToHyperplane(TH2D* h, TLinearFitter* linExtrapolation, Int_t binX, Int_t binY)
{
- //
- // Load the TPC pid response functions from the OADB
- // Load the TPC voltage maps from OADB
- //
- //don't load twice for the moment
- if (fArrPidResponseMaster) return;
-
-
- //reset the PID response functions
- delete fArrPidResponseMaster;
- fArrPidResponseMaster=NULL;
-
- TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data()));
- TFile *f=NULL;
- if (!fCustomTPCpidResponse.IsNull()) fileName=fCustomTPCpidResponse;
-
- TString fileNamePIDresponse(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data()));
- f=TFile::Open(fileNamePIDresponse.Data());
- if (f && f->IsOpen() && !f->IsZombie()){
- fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse"));
- }
- delete f;
-
- TString fileNameVoltageMaps(Form("%s/COMMON/PID/data/TPCvoltageSettings.root", fOADBPath.Data()));
- f=TFile::Open(fileNameVoltageMaps.Data());
- if (f && f->IsOpen() && !f->IsZombie()){
- fOADBvoltageMaps=dynamic_cast<AliOADBContainer*>(f->Get("TPCvoltageSettings"));
- }
- delete f;
-
- if (!fArrPidResponseMaster){
- AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileNamePIDresponse.Data()));
- return;
- }
- fArrPidResponseMaster->SetOwner();
-
- if (!fOADBvoltageMaps)
- {
- AliFatal(Form("Could not retrieve the TPC voltage maps from: %s",fileNameVoltageMaps.Data()));
+ if (h->GetBinContent(binX, binY) <= 1e-4)
+ return; // Reject bins without content (within some numerical precision) or with strange content
+
+ Double_t coord[2] = {0, 0};
+ coord[0] = h->GetXaxis()->GetBinCenter(binX);
+ coord[1] = h->GetYaxis()->GetBinCenter(binY);
+ Double_t binError = h->GetBinError(binX, binY);
+ if (binError <= 0) {
+ binError = 1000; // Should not happen because bins without content are rejected for the map (TH2D* h)
+ printf("ERROR: This should never happen: Trying to add bin in addPointToHyperplane with error not set....\n");
}
- fArrPidResponseMaster->SetOwner();
+ linExtrapolation->AddPoint(coord, h->GetBinContent(binX, binY, binError));
}
+
//______________________________________________________________________________
-void AliPIDResponse::SetTPCParametrisation()
+TH2D* AliPIDResponse::RefineHistoViaLinearInterpolation(TH2D* h, Double_t refineFactorX, Double_t refineFactorY)
{
- //
- // Change BB parametrisation for current run
- //
-
- if (fLHCperiod.IsNull()) {
- AliFatal("No period set, not changing parametrisation");
- return;
- }
-
- //
- // Set default parametrisations for data and MC
- //
-
- //data type
- TString datatype="DATA";
- //in case of mc fRecoPass is per default 1
- if (fIsMC) {
- if(!fTuneMConData) datatype="MC";
- fRecoPass=1;
- }
-
- //
+ if (!h)
+ return 0x0;
+
+ // Interpolate to finer map
+ TLinearFitter* linExtrapolation = new TLinearFitter(2, "hyp2", "");
+
+ Double_t upperMapBoundY = h->GetYaxis()->GetBinUpEdge(h->GetYaxis()->GetNbins());
+ Double_t lowerMapBoundY = h->GetYaxis()->GetBinLowEdge(1);
+ Int_t nBinsX = 30;
+ // Binning was find to yield good results, if 40 bins are chosen for the range 0.0016 to 0.02. For the new variable range,
+ // scale the number of bins correspondingly
+ Int_t nBinsY = TMath::Nint((upperMapBoundY - lowerMapBoundY) / (0.02 - 0.0016) * 40);
+ Int_t nBinsXrefined = nBinsX * refineFactorX;
+ Int_t nBinsYrefined = nBinsY * refineFactorY;
+
+ TH2D* hRefined = new TH2D(Form("%s_refined", h->GetName()), Form("%s (refined)", h->GetTitle()),
+ nBinsXrefined, h->GetXaxis()->GetBinLowEdge(1), h->GetXaxis()->GetBinUpEdge(h->GetXaxis()->GetNbins()),
+ nBinsYrefined, lowerMapBoundY, upperMapBoundY);
+
+ for (Int_t binX = 1; binX <= nBinsXrefined; binX++) {
+ for (Int_t binY = 1; binY <= nBinsYrefined; binY++) {
+
+ hRefined->SetBinContent(binX, binY, 1); // Default value is 1
+
+ Double_t centerX = hRefined->GetXaxis()->GetBinCenter(binX);
+ Double_t centerY = hRefined->GetYaxis()->GetBinCenter(binY);
+
+ /*OLD
+ linExtrapolation->ClearPoints();
+
+ // For interpolation: Just take the corresponding bin from the old histo.
+ // For extrapolation: take the last available bin from the old histo.
+ // If the boundaries are to be skipped, also skip the corresponding bins
+ Int_t oldBinX = h->GetXaxis()->FindBin(centerX);
+ if (oldBinX < 1)
+ oldBinX = 1;
+ if (oldBinX > nBinsX)
+ oldBinX = nBinsX;
+
+ Int_t oldBinY = h->GetYaxis()->FindBin(centerY);
+ if (oldBinY < 1)
+ oldBinY = 1;
+ if (oldBinY > nBinsY)
+ oldBinY = nBinsY;
+
+ // Neighbours left column
+ if (oldBinX >= 2) {
+ if (oldBinY >= 2) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX - 1, oldBinY - 1);
+ }
+
+ AddPointToHyperplane(h, linExtrapolation, oldBinX - 1, oldBinY);
+
+ if (oldBinY < nBinsY) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX - 1, oldBinY + 1);
+ }
+ }
+
+ // Neighbours (and point itself) same column
+ if (oldBinY >= 2) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX, oldBinY - 1);
+ }
+
+ AddPointToHyperplane(h, linExtrapolation, oldBinX, oldBinY);
+
+ if (oldBinY < nBinsY) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX, oldBinY + 1);
+ }
+
+ // Neighbours right column
+ if (oldBinX < nBinsX) {
+ if (oldBinY >= 2) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX + 1, oldBinY - 1);
+ }
+
+ AddPointToHyperplane(h, linExtrapolation, oldBinX + 1, oldBinY);
+
+ if (oldBinY < nBinsY) {
+ AddPointToHyperplane(h, linExtrapolation, oldBinX + 1, oldBinY + 1);
+ }
+ }
+
+
+ // Fit 2D-hyperplane
+ if (linExtrapolation->GetNpoints() <= 0)
+ continue;
+
+ if (linExtrapolation->Eval() != 0)// EvalRobust -> Takes much, much, [...], much more time (~hours instead of seconds)
+ continue;
+
+ // Fill the bin of the refined histogram with the extrapolated value
+ Double_t interpolatedValue = linExtrapolation->GetParameter(0) + linExtrapolation->GetParameter(1) * centerX
+ + linExtrapolation->GetParameter(2) * centerY;
+ */
+ Double_t interpolatedValue = h->Interpolate(centerX, centerY) ;
+ hRefined->SetBinContent(binX, binY, interpolatedValue);
+ }
+ }
+
+
+ // Problem: Interpolation does not work before/beyond center of first/last bin (as the name suggests).
+ // Therefore, for each row in dEdx: Take last bin from old map and interpolate values from center and edge.
+ // Assume line through these points and extropolate to last bin of refined map
+ const Double_t firstOldXbinUpEdge = h->GetXaxis()->GetBinUpEdge(1);
+ const Double_t firstOldXbinCenter = h->GetXaxis()->GetBinCenter(1);
+
+ const Double_t oldXbinHalfWidth = firstOldXbinUpEdge - firstOldXbinCenter;
+
+ const Double_t lastOldXbinLowEdge = h->GetXaxis()->GetBinLowEdge(h->GetNbinsX());
+ const Double_t lastOldXbinCenter = h->GetXaxis()->GetBinCenter(h->GetNbinsX());
+
+ for (Int_t binY = 1; binY <= nBinsYrefined; binY++) {
+ Double_t centerY = hRefined->GetYaxis()->GetBinCenter(binY);
+
+ const Double_t interpolatedCenterFirstXbin = h->Interpolate(firstOldXbinCenter, centerY);
+ const Double_t interpolatedUpEdgeFirstXbin = h->Interpolate(firstOldXbinUpEdge, centerY);
+
+ const Double_t extrapolationSlopeFirstXbin = (interpolatedUpEdgeFirstXbin - interpolatedCenterFirstXbin) / oldXbinHalfWidth;
+ const Double_t extrapolationOffsetFirstXbin = interpolatedCenterFirstXbin;
+
+
+ const Double_t interpolatedCenterLastXbin = h->Interpolate(lastOldXbinCenter, centerY);
+ const Double_t interpolatedLowEdgeLastXbin = h->Interpolate(lastOldXbinLowEdge, centerY);
+
+ const Double_t extrapolationSlopeLastXbin = (interpolatedCenterLastXbin - interpolatedLowEdgeLastXbin) / oldXbinHalfWidth;
+ const Double_t extrapolationOffsetLastXbin = interpolatedCenterLastXbin;
+
+ for (Int_t binX = 1; binX <= nBinsXrefined; binX++) {
+ Double_t centerX = hRefined->GetXaxis()->GetBinCenter(binX);
+
+ if (centerX < firstOldXbinCenter) {
+ Double_t extrapolatedValue = extrapolationOffsetFirstXbin + (centerX - firstOldXbinCenter) * extrapolationSlopeFirstXbin;
+ hRefined->SetBinContent(binX, binY, extrapolatedValue);
+ }
+ else if (centerX <= lastOldXbinCenter) {
+ continue;
+ }
+ else {
+ Double_t extrapolatedValue = extrapolationOffsetLastXbin + (centerX - lastOldXbinCenter) * extrapolationSlopeLastXbin;
+ hRefined->SetBinContent(binX, binY, extrapolatedValue);
+ }
+ }
+ }
+
+ delete linExtrapolation;
+
+ return hRefined;
+}
+
+//______________________________________________________________________________
+void AliPIDResponse::SetTPCEtaMaps(Double_t refineFactorMapX, Double_t refineFactorMapY,
+ Double_t refineFactorSigmaMapX, Double_t refineFactorSigmaMapY)
+{
+ //
+ // Load the TPC eta correction maps from the OADB
+ //
+
+ if (fUseTPCEtaCorrection == kFALSE) {
+ // Disable eta correction via setting no maps
+ if (!fTPCResponse.SetEtaCorrMap(0x0))
+ AliInfo("Request to disable TPC eta correction -> Eta correction has been disabled");
+ else
+ AliError("Request to disable TPC eta correction -> Some error occured when unloading the correction maps");
+
+ if (!fTPCResponse.SetSigmaParams(0x0, 0))
+ AliInfo("Request to disable TPC eta correction -> Using old parametrisation for sigma");
+ else
+ AliError("Request to disable TPC eta correction -> Some error occured when unloading the sigma maps");
+
+ return;
+ }
+
+ TString dataType = "DATA";
+ TString period = fLHCperiod.IsNull() ? "No period information" : fLHCperiod;
+
+ if (fIsMC) {
+ if (!fTuneMConData) {
+ period=fMCperiodTPC;
+ dataType="MC";
+ }
+ fRecoPass = 1;
+
+ if (!fTuneMConData && fMCperiodTPC.IsNull()) {
+ AliFatal("MC detected, but no MC period set -> Not changing eta maps!");
+ return;
+ }
+ }
+
+ Int_t recopass = fRecoPass;
+ if (fTuneMConData)
+ recopass = fRecoPassUser;
+
+ TString defaultObj = Form("Default_%s_pass%d", dataType.Data(), recopass);
+
+ AliInfo(Form("Current period and reco pass: %s.pass%d", period.Data(), recopass));
+
+ // Invalidate old maps
+ fTPCResponse.SetEtaCorrMap(0x0);
+ fTPCResponse.SetSigmaParams(0x0, 0);
+
+ // Load the eta correction maps
+ AliOADBContainer etaMapsCont(Form("TPCetaMaps_%s_pass%d", dataType.Data(), recopass));
+
+ Int_t statusCont = etaMapsCont.InitFromFile(Form("%s/COMMON/PID/data/TPCetaMaps.root", fOADBPath.Data()),
+ Form("TPCetaMaps_%s_pass%d", dataType.Data(), recopass));
+ if (statusCont) {
+ AliError("Failed initializing TPC eta correction maps from OADB -> Disabled eta correction");
+ }
+ else {
+ AliInfo(Form("Loading TPC eta correction map from %s/COMMON/PID/data/TPCetaMaps.root", fOADBPath.Data()));
+
+ TH2D* etaMap = 0x0;
+
+ if (fIsMC && !fTuneMConData) {
+ TString searchMap = Form("TPCetaMaps_%s_%s_pass%d", dataType.Data(), period.Data(), recopass);
+ etaMap = dynamic_cast<TH2D *>(etaMapsCont.GetDefaultObject(searchMap.Data()));
+ if (!etaMap) {
+ // Try default object
+ etaMap = dynamic_cast<TH2D *>(etaMapsCont.GetDefaultObject(defaultObj.Data()));
+ }
+ }
+ else {
+ etaMap = dynamic_cast<TH2D *>(etaMapsCont.GetObject(fRun, defaultObj.Data()));
+ }
+
+
+ if (!etaMap) {
+ AliError(Form("TPC eta correction map not found for run %d and also no default map found -> Disabled eta correction!!!", fRun));
+ }
+ else {
+ TH2D* etaMapRefined = RefineHistoViaLinearInterpolation(etaMap, refineFactorMapX, refineFactorMapY);
+
+ if (etaMapRefined) {
+ if (!fTPCResponse.SetEtaCorrMap(etaMapRefined)) {
+ AliError(Form("Failed to set TPC eta correction map for run %d -> Disabled eta correction!!!", fRun));
+ fTPCResponse.SetEtaCorrMap(0x0);
+ }
+ else {
+ AliInfo(Form("Loaded TPC eta correction map (refine factors %.2f/%.2f) from %s/COMMON/PID/data/TPCetaMaps.root: %s",
+ refineFactorMapX, refineFactorMapY, fOADBPath.Data(), fTPCResponse.GetEtaCorrMap()->GetTitle()));
+ }
+
+ delete etaMapRefined;
+ }
+ else {
+ AliError(Form("Failed to set TPC eta correction map for run %d (map was loaded, but couldn't be refined) -> Disabled eta correction!!!", fRun));
+ }
+ }
+ }
+
+ // Load the sigma parametrisation (1/dEdx vs tanTheta_local (~eta))
+ AliOADBContainer etaSigmaMapsCont(Form("TPCetaSigmaMaps_%s_pass%d", dataType.Data(), recopass));
+
+ statusCont = etaSigmaMapsCont.InitFromFile(Form("%s/COMMON/PID/data/TPCetaMaps.root", fOADBPath.Data()),
+ Form("TPCetaSigmaMaps_%s_pass%d", dataType.Data(), recopass));
+ if (statusCont) {
+ AliError("Failed initializing TPC eta sigma maps from OADB -> Using old sigma parametrisation");
+ }
+ else {
+ AliInfo(Form("Loading TPC eta sigma map from %s/COMMON/PID/data/TPCetaMaps.root", fOADBPath.Data()));
+
+ TObjArray* etaSigmaPars = 0x0;
+
+ if (fIsMC && !fTuneMConData) {
+ TString searchMap = Form("TPCetaSigmaMaps_%s_%s_pass%d", dataType.Data(), period.Data(), recopass);
+ etaSigmaPars = dynamic_cast<TObjArray *>(etaSigmaMapsCont.GetDefaultObject(searchMap.Data()));
+ if (!etaSigmaPars) {
+ // Try default object
+ etaSigmaPars = dynamic_cast<TObjArray *>(etaSigmaMapsCont.GetDefaultObject(defaultObj.Data()));
+ }
+ }
+ else {
+ etaSigmaPars = dynamic_cast<TObjArray *>(etaSigmaMapsCont.GetObject(fRun, defaultObj.Data()));
+ }
+
+ if (!etaSigmaPars) {
+ AliError(Form("TPC eta sigma parametrisation not found for run %d -> Using old sigma parametrisation!!!", fRun));
+ }
+ else {
+ TH2D* etaSigmaPar1Map = dynamic_cast<TH2D *>(etaSigmaPars->FindObject("sigmaPar1Map"));
+ TNamed* sigmaPar0Info = dynamic_cast<TNamed *>(etaSigmaPars->FindObject("sigmaPar0"));
+ Double_t sigmaPar0 = 0.0;
+
+ if (sigmaPar0Info) {
+ TString sigmaPar0String = sigmaPar0Info->GetTitle();
+ sigmaPar0 = sigmaPar0String.Atof();
+ }
+ else {
+ // Something is weired because the object for parameter 0 could not be loaded -> New sigma parametrisation can not be used!
+ etaSigmaPar1Map = 0x0;
+ }
+
+ TH2D* etaSigmaPar1MapRefined = RefineHistoViaLinearInterpolation(etaSigmaPar1Map, refineFactorSigmaMapX, refineFactorSigmaMapY);
+
+
+ if (etaSigmaPar1MapRefined) {
+ if (!fTPCResponse.SetSigmaParams(etaSigmaPar1MapRefined, sigmaPar0)) {
+ AliError(Form("Failed to set TPC eta sigma map for run %d -> Using old sigma parametrisation!!!", fRun));
+ fTPCResponse.SetSigmaParams(0x0, 0);
+ }
+ else {
+ AliInfo(Form("Loaded TPC sigma correction map (refine factors %.2f/%.2f) from %s/COMMON/PID/data/TPCetaMaps.root: %s",
+ refineFactorSigmaMapX, refineFactorSigmaMapY, fOADBPath.Data(), fTPCResponse.GetSigmaPar1Map()->GetTitle()));
+ }
+
+ delete etaSigmaPar1MapRefined;
+ }
+ else {
+ AliError(Form("Failed to set TPC eta sigma map for run %d (map was loaded, but couldn't be refined) -> Using old sigma parametrisation!!!",
+ fRun));
+ }
+ }
+ }
+}
+
+//______________________________________________________________________________
+void AliPIDResponse::SetTPCPidResponseMaster()
+{
+ //
+ // Load the TPC pid response functions from the OADB
+ // Load the TPC voltage maps from OADB
+ //
+ //don't load twice for the moment
+ if (fArrPidResponseMaster) return;
+
+
+ //reset the PID response functions
+ delete fArrPidResponseMaster;
+ fArrPidResponseMaster=NULL;
+
+ TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data()));
+ TFile *f=NULL;
+ if (!fCustomTPCpidResponse.IsNull()) fileName=fCustomTPCpidResponse;
+
+ TString fileNamePIDresponse(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data()));
+ f=TFile::Open(fileNamePIDresponse.Data());
+ if (f && f->IsOpen() && !f->IsZombie()){
+ fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse"));
+ }
+ delete f;
+
+ TString fileNameVoltageMaps(Form("%s/COMMON/PID/data/TPCvoltageSettings.root", fOADBPath.Data()));
+ f=TFile::Open(fileNameVoltageMaps.Data());
+ if (f && f->IsOpen() && !f->IsZombie()){
+ fOADBvoltageMaps=dynamic_cast<AliOADBContainer*>(f->Get("TPCvoltageSettings"));
+ }
+ delete f;
+
+ if (!fArrPidResponseMaster){
+ AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileNamePIDresponse.Data()));
+ return;
+ }
+ fArrPidResponseMaster->SetOwner();
+
+ if (!fOADBvoltageMaps)
+ {
+ AliFatal(Form("Could not retrieve the TPC voltage maps from: %s",fileNameVoltageMaps.Data()));
+ }
+ fArrPidResponseMaster->SetOwner();
+}
+
+//______________________________________________________________________________
+void AliPIDResponse::SetTPCParametrisation()
+{
+ //
+ // Change BB parametrisation for current run
+ //
+
+ //
//reset old splines
//
fTPCResponse.ResetSplines();
+
+ if (fLHCperiod.IsNull()) {
+ AliError("No period set, not changing parametrisation");
+ return;
+ }
+
+ //
+ // Set default parametrisations for data and MC
+ //
+
+ //data type
+ TString datatype="DATA";
+ //in case of mc fRecoPass is per default 1
+ if (fIsMC) {
+ if(!fTuneMConData) datatype="MC";
+ fRecoPass=1;
+ }
// period
TString period=fLHCperiod;
if (fIsMC && !fTuneMConData) period=fMCperiodTPC;
- AliInfo(Form("Searching splines for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data()));
+ Int_t recopass = fRecoPass;
+ if(fTuneMConData) recopass = fRecoPassUser;
+
+ AliInfo(Form("Searching splines for: %s %s PASS%d %s",datatype.Data(),period.Data(),recopass,fBeamType.Data()));
Bool_t found=kFALSE;
//
//set the new PID splines
//
if (fArrPidResponseMaster){
- Int_t recopass = fRecoPass;
- if(fTuneMConData) recopass = fRecoPassUser;
//for MC don't use period information
//if (fIsMC) period="[A-Z0-9]*";
//for MC use MC period information
//pattern for the default entry (valid for all particles)
TPRegexp reg(Form("TSPLINE3_%s_([A-Z]*)_%s_PASS%d_%s_MEAN(_*)([A-Z1-9]*)",datatype.Data(),period.Data(),recopass,fBeamType.Data()));
- //find particle id ang gain scenario
+ //find particle id and gain scenario
for (Int_t igainScenario=0; igainScenario<AliTPCPIDResponse::fgkNumberOfGainScenarios; igainScenario++)
{
TObject *grAll=NULL;
fTPCResponse.SetUseDatabase(kTRUE);
AliInfo(Form("Adding graph: %d %d - %s",ispec,igainScenario,responseFunction->GetName()));
found=kTRUE;
- // overwrite default with proton spline (for light nuclei)
- if (ispec==AliPID::kProton) grAll=responseFunction;
break;
}
}
}
}
- if (grAll)
+
+ // Retrieve responsefunction for pions - will (if available) be used for muons if there are no dedicated muon splines.
+ // For light nuclei, try to set the proton spline, if no dedicated splines are available.
+ // In both cases: Use default splines, if no dedicated splines and no pion/proton splines are available.
+ TObject* responseFunctionPion = fTPCResponse.GetResponseFunction( (AliPID::EParticleType)AliPID::kPion,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario);
+ TObject* responseFunctionProton = fTPCResponse.GetResponseFunction( (AliPID::EParticleType)AliPID::kProton,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario);
+
+ for (Int_t ispec=0; ispec<(AliTPCPIDResponse::fgkNumberOfParticleSpecies); ++ispec)
{
- for (Int_t ispec=0; ispec<(AliTPCPIDResponse::fgkNumberOfParticleSpecies); ++ispec)
+ if (!fTPCResponse.GetResponseFunction( (AliPID::EParticleType)ispec,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario))
{
- if (!fTPCResponse.GetResponseFunction( (AliPID::EParticleType)ispec,
- (AliTPCPIDResponse::ETPCgainScenario)igainScenario))
- {
+ if (ispec == AliPID::kMuon) { // Muons
+ if (responseFunctionPion) {
+ fTPCResponse.SetResponseFunction( responseFunctionPion,
+ (AliPID::EParticleType)ispec,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario );
+ fTPCResponse.SetUseDatabase(kTRUE);
+ AliInfo(Form("Adding graph: %d %d - %s",ispec,igainScenario,responseFunctionPion->GetName()));
+ found=kTRUE;
+ }
+ else if (grAll) {
+ fTPCResponse.SetResponseFunction( grAll,
+ (AliPID::EParticleType)ispec,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario );
+ fTPCResponse.SetUseDatabase(kTRUE);
+ AliInfo(Form("Adding graph: %d %d - %s",ispec,igainScenario,grAll->GetName()));
+ found=kTRUE;
+ }
+ //else
+ // AliError(Form("No splines found for muons (also no pion splines and no default splines) for gain scenario %d!", igainScenario));
+ }
+ else if (ispec >= AliPID::kSPECIES) { // Light nuclei
+ if (responseFunctionProton) {
+ fTPCResponse.SetResponseFunction( responseFunctionProton,
+ (AliPID::EParticleType)ispec,
+ (AliTPCPIDResponse::ETPCgainScenario)igainScenario );
+ fTPCResponse.SetUseDatabase(kTRUE);
+ AliInfo(Form("Adding graph: %d %d - %s",ispec,igainScenario,responseFunctionProton->GetName()));
+ found=kTRUE;
+ }
+ else if (grAll) {
fTPCResponse.SetResponseFunction( grAll,
(AliPID::EParticleType)ispec,
(AliTPCPIDResponse::ETPCgainScenario)igainScenario );
fTPCResponse.SetUseDatabase(kTRUE);
AliInfo(Form("Adding graph: %d %d - %s",ispec,igainScenario,grAll->GetName()));
found=kTRUE;
+ }
+ //else
+ // AliError(Form("No splines found for species %d (also no proton splines and no default splines) for gain scenario %d!",
+ // ispec, igainScenario));
}
}
}
else AliInfo("no fArrPidResponseMaster");
if (!found){
- AliError(Form("No splines found for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data()));
+ AliError(Form("No splines found for: %s %s PASS%d %s",datatype.Data(),period.Data(),recopass,fBeamType.Data()));
}
//
if (fRun>=122195){
fTPCResponse.SetSigma(2.30176e-02, 5.60422e+02);
}
+
+ if (fRun>=186636){
+// if (fRun>=188356){
+ fTPCResponse.SetSigma(8.62022e-04, 9.08156e+05);
+ }
+
if (fArrPidResponseMaster)
- fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data()));
+ fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),recopass,fBeamType.Data()));
if (fResolutionCorrection) AliInfo(Form("Setting multiplicity correction function: %s",fResolutionCorrection->GetName()));
//read in the voltage map
- TVectorF* gsm = dynamic_cast<TVectorF*>(fOADBvoltageMaps->GetObject(fRun));
+ TVectorF* gsm = 0x0;
+ if (fOADBvoltageMaps) gsm=dynamic_cast<TVectorF*>(fOADBvoltageMaps->GetObject(fRun));
if (gsm)
{
fTPCResponse.SetVoltageMap(*gsm);
AliError(Form("TRD Response not found in run %d", fRun));
}
}
- /*
- AliOADBContainer contRefs("contRefs");
- Int_t statusRefs = contRefs.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()), "AliTRDPIDReference");
- if(statusRefs){
- AliInfo("Failed Loading References for TRD");
- } else {
- AliInfo(Form("Loading TRD References from %s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()));
- fTRDPIDReference = dynamic_cast<AliTRDPIDReference *>(contRefs.GetObject(fRun));
- if(!fTRDPIDReference){
- AliError(Form("TRD References not found in OADB Container for run %d", fRun));
- }
- }
- */
}
//______________________________________________________________________________
}
fTOFResponse.SetTimeResolution(fTOFPIDParams->GetTOFresolution());
+ AliInfo("TZERO resolution loaded from ESDrun/AODheader");
+ Float_t t0Spread[4];
+ for (Int_t i=0;i<4;i++) t0Spread[i]=fCurrentEvent->GetT0spread(i);
+ AliInfo(Form(" TZERO spreads from data: (A+C)/2 %f A %f C %f (A'-C')/2: %f",t0Spread[0],t0Spread[1],t0Spread[2],t0Spread[3]));
+ Float_t a = t0Spread[1]*t0Spread[1]-t0Spread[0]*t0Spread[0]+t0Spread[3]*t0Spread[3];
+ Float_t c = t0Spread[2]*t0Spread[2]-t0Spread[0]*t0Spread[0]+t0Spread[3]*t0Spread[3];
+ if ( (t0Spread[0] > 50. && t0Spread[0] < 400.) && (a > 0.) && (c>0.)) {
+ fResT0AC=t0Spread[3];
+ fResT0A=TMath::Sqrt(a);
+ fResT0C=TMath::Sqrt(c);
+ } else {
+ AliInfo(" TZERO spreads not present or inconsistent, loading default");
+ fResT0A=75.;
+ fResT0C=65.;
+ fResT0AC=55.;
+ }
+ AliInfo(Form(" TZERO resolution set to: T0A: %f [ps] T0C: %f [ps] T0AC %f [ps]",fResT0A,fResT0C,fResT0AC));
+
}
-//_________________________________________________________________________
+//______________________________________________________________________________
Bool_t AliPIDResponse::IdentifiedAsElectronTRD(const AliVTrack *vtrack, Double_t efficiencyLevel,Double_t centrality,AliTRDPIDResponse::ETRDPIDMethod PIDmethod) const {
//
// Check whether track is identified as electron under a given electron efficiency hypothesis
}
-//_____________________________________________________
-void AliPIDResponse::FillTrackDetectorPID()
+//______________________________________________________________________________
+void AliPIDResponse::FillTrackDetectorPID(const AliVTrack *track, EDetector detector) const
{
//
// create detector PID information and setup the transient pointer in the track
//
-
- if (!fCurrentEvent) return;
+
+ // check if detector number is inside accepted range
+ if (detector == kNdetectors) return;
+
+ // get detector pid
+ AliDetectorPID *detPID=const_cast<AliDetectorPID*>(track->GetDetectorPID());
+ if (!detPID) {
+ detPID=new AliDetectorPID;
+ (const_cast<AliVTrack*>(track))->SetDetectorPID(detPID);
+ }
+
+ //check if values exist
+ if (detPID->HasRawProbability(detector) && detPID->HasNumberOfSigmas(detector)) return;
//TODO: which particles to include? See also the loops below...
Double_t values[AliPID::kSPECIESC]={0};
+
+ //probabilities
+ EDetPidStatus status=GetComputePIDProbability(detector,track,AliPID::kSPECIESC,values);
+ detPID->SetRawProbability(detector, values, (Int_t)AliPID::kSPECIESC, status);
+
+ //nsigmas
+ for (Int_t ipart=0; ipart<AliPID::kSPECIESC; ++ipart)
+ values[ipart]=GetNumberOfSigmas(detector,track,(AliPID::EParticleType)ipart);
+ // the pid status is the same for probabilities and nSigmas, so it is
+ // fine to use the one from the probabilities also here
+ detPID->SetNumberOfSigmas(detector, values, (Int_t)AliPID::kSPECIESC, status);
+
+}
+
+//______________________________________________________________________________
+void AliPIDResponse::FillTrackDetectorPID()
+{
+ //
+ // create detector PID information and setup the transient pointer in the track
+ //
+
+ if (!fCurrentEvent) return;
for (Int_t itrack=0; itrack<fCurrentEvent->GetNumberOfTracks(); ++itrack){
AliVTrack *track=dynamic_cast<AliVTrack*>(fCurrentEvent->GetTrack(itrack));
if (!track) continue;
- AliDetectorPID *detPID=new AliDetectorPID;
for (Int_t idet=0; idet<kNdetectors; ++idet){
-
- //nsigmas
- for (Int_t ipart=0; ipart<AliPID::kSPECIESC; ++ipart)
- values[ipart]=NumberOfSigmas((EDetector)idet,track,(AliPID::EParticleType)ipart);
- detPID->SetNumberOfSigmas((EDetector)idet, values, (Int_t)AliPID::kSPECIESC);
-
- //probabilities
- EDetPidStatus status=ComputePIDProbability((EDetector)idet,track,AliPID::kSPECIESC,values);
- detPID->SetRawProbability((EDetector)idet, values, (Int_t)AliPID::kSPECIESC, status);
+ FillTrackDetectorPID(track, (EDetector)idet);
}
-
- track->SetDetectorPID(detPID);
}
}
-//_________________________________________________________________________
+//______________________________________________________________________________
void AliPIDResponse::SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option){
//
// Set TOF response function
startTimeMask[i] = 0;
}
- Float_t resT0A=75,resT0C=65,resT0AC=55;
+ Float_t resT0A=fResT0A;
+ Float_t resT0C=fResT0C;
+ Float_t resT0AC=fResT0AC;
if(vevent->GetT0TOF()){ // check if T0 detector information is available
flagT0T0=kTRUE;
}
Float_t t0A=-10000;
Float_t t0C=-10000;
if(flagT0T0){
- t0AC= vevent->GetT0TOF()[0];
t0A= vevent->GetT0TOF()[1];
t0C= vevent->GetT0TOF()[2];
+ // t0AC= vevent->GetT0TOF()[0];
+ t0AC= t0A/resT0A/resT0A + t0C/resT0C/resT0C;
+ resT0AC= TMath::Sqrt(1./resT0A/resT0A + 1./resT0C/resT0C);
+ t0AC /= resT0AC*resT0AC;
}
Float_t t0t0Best = 0;
Float_t t0A=-10000;
Float_t t0C=-10000;
if(flagT0T0){
- t0AC= vevent->GetT0TOF()[0];
t0A= vevent->GetT0TOF()[1];
t0C= vevent->GetT0TOF()[2];
+ // t0AC= vevent->GetT0TOF()[0];
+ t0AC= t0A/resT0A/resT0A + t0C/resT0C/resT0C;
+ resT0AC= TMath::Sqrt(1./resT0A/resT0A + 1./resT0C/resT0C);
+ t0AC /= resT0AC*resT0AC;
}
if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){
delete [] estimatedT0event;
delete [] estimatedT0resolution;
}
+
+//______________________________________________________________________________
+// private non cached versions of the PID calculation
+//
+
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetNumberOfSigmas(EDetector detector, const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // NumberOfSigmas for 'detCode'
+ //
+
+ const AliVTrack *track=static_cast<const AliVTrack*>(vtrack);
+
+ switch (detector){
+ case kITS: return GetNumberOfSigmasITS(track, type); break;
+ case kTPC: return GetNumberOfSigmasTPC(track, type); break;
+ case kTOF: return GetNumberOfSigmasTOF(track, type); break;
+ case kEMCAL: return GetNumberOfSigmasEMCAL(track, type); break;
+ default: return -999.;
+ }
+
+ return -999.;
+}
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetNumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // Calculate the number of sigmas in the ITS
+ //
+
+ AliVTrack *track=(AliVTrack*)vtrack;
+
+ const EDetPidStatus pidStatus=GetITSPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return -999.;
+
+ UChar_t clumap=track->GetITSClusterMap();
+ Int_t nPointsForPid=0;
+ for(Int_t i=2; i<6; i++){
+ if(clumap&(1<<i)) ++nPointsForPid;
+ }
+ Float_t mom=track->P();
+
+ //check for ITS standalone tracks
+ Bool_t isSA=kTRUE;
+ if( track->GetStatus() & AliVTrack::kTPCin ) isSA=kFALSE;
+
+ const Float_t dEdx=track->GetITSsignal();
+
+ //TODO: in case of the electron, use the SA parametrisation,
+ // this needs to be changed if ITS provides a parametrisation
+ // for electrons also for ITS+TPC tracks
+ return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA || (type==AliPID::kElectron));
+}
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetNumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // Calculate the number of sigmas in the TPC
+ //
+
+ AliVTrack *track=(AliVTrack*)vtrack;
+
+ const EDetPidStatus pidStatus=GetTPCPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return -999.;
+
+ Double_t nSigma = -999.;
+
+ if (fTuneMConData)
+ this->GetTPCsignalTunedOnData(track);
+
+ nSigma = fTPCResponse.GetNumberOfSigmas(track, type, AliTPCPIDResponse::kdEdxDefault, fUseTPCEtaCorrection);
+
+ return nSigma;
+}
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetNumberOfSigmasTOF(const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // Calculate the number of sigmas in the TOF
+ //
+
+ AliVTrack *track=(AliVTrack*)vtrack;
+
+ const EDetPidStatus pidStatus=GetTOFPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return -999.;
+
+
+ return GetNumberOfSigmasTOFold(vtrack, type);
+}
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetNumberOfSigmasEMCAL(const AliVParticle *vtrack, AliPID::EParticleType type) const
+{
+ //
+ // Calculate the number of sigmas in the EMCAL
+ //
+
+ AliVTrack *track=(AliVTrack*)vtrack;
+
+ const EDetPidStatus pidStatus=GetEMCALPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return -999.;
+
+ const Int_t nMatchClus = track->GetEMCALcluster();
+ AliVCluster *matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus);
+
+ const Double_t mom = track->P();
+ const Double_t pt = track->Pt();
+ const Int_t charge = track->Charge();
+ const Double_t fClsE = matchedClus->E();
+ const Double_t EovP = fClsE/mom;
+
+ return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge);
+}
+
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputePIDProbability (EDetector detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response of 'detCode'
+ //
+
+ switch (detCode){
+ case kITS: return GetComputeITSProbability(track, nSpecies, p); break;
+ case kTPC: return GetComputeTPCProbability(track, nSpecies, p); break;
+ case kTRD: return GetComputeTRDProbability(track, nSpecies, p); break;
+ case kTOF: return GetComputeTOFProbability(track, nSpecies, p); break;
+ case kPHOS: return GetComputePHOSProbability(track, nSpecies, p); break;
+ case kEMCAL: return GetComputeEMCALProbability(track, nSpecies, p); break;
+ case kHMPID: return GetComputeHMPIDProbability(track, nSpecies, p); break;
+ default: return kDetNoSignal;
+ }
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response for the ITS
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetITSPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ if (track->GetDetectorPID()){
+ return track->GetDetectorPID()->GetRawProbability(kITS, p, nSpecies);
+ }
+
+ //check for ITS standalone tracks
+ Bool_t isSA=kTRUE;
+ if( track->GetStatus() & AliVTrack::kTPCin ) isSA=kFALSE;
+
+ Double_t mom=track->P();
+ Double_t dedx=track->GetITSsignal();
+ Double_t momITS=mom;
+ UChar_t clumap=track->GetITSClusterMap();
+ Int_t nPointsForPid=0;
+ for(Int_t i=2; i<6; i++){
+ if(clumap&(1<<i)) ++nPointsForPid;
+ }
+
+ Bool_t mismatch=kTRUE/*, heavy=kTRUE*/;
+ for (Int_t j=0; j<nSpecies; j++) {
+ Double_t mass=AliPID::ParticleMassZ(j);//GeV/c^2
+ const Double_t chargeFactor = TMath::Power(AliPID::ParticleCharge(j),2.);
+ Double_t bethe=fITSResponse.Bethe(momITS,mass)*chargeFactor;
+ //TODO: in case of the electron, use the SA parametrisation,
+ // this needs to be changed if ITS provides a parametrisation
+ // for electrons also for ITS+TPC tracks
+ Double_t sigma=fITSResponse.GetResolution(bethe,nPointsForPid,isSA || (j==(Int_t)AliPID::kElectron));
+ if (TMath::Abs(dedx-bethe) > fRange*sigma) {
+ p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
+ } else {
+ p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
+ mismatch=kFALSE;
+ }
+ }
+
+ if (mismatch){
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+ }
+
+ return kDetPidOk;
+}
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response for the TPC
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetTPCPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ Double_t dedx=track->GetTPCsignal();
+ Bool_t mismatch=kTRUE/*, heavy=kTRUE*/;
+
+ if(fTuneMConData) dedx = this->GetTPCsignalTunedOnData(track);
+
+ Double_t bethe = 0.;
+ Double_t sigma = 0.;
+
+ for (Int_t j=0; j<nSpecies; j++) {
+ AliPID::EParticleType type=AliPID::EParticleType(j);
+
+ bethe=fTPCResponse.GetExpectedSignal(track, type, AliTPCPIDResponse::kdEdxDefault, fUseTPCEtaCorrection);
+ sigma=fTPCResponse.GetExpectedSigma(track, type, AliTPCPIDResponse::kdEdxDefault, fUseTPCEtaCorrection);
+
+ if (TMath::Abs(dedx-bethe) > fRange*sigma) {
+ p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
+ } else {
+ p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
+ mismatch=kFALSE;
+ }
+ }
+
+ if (mismatch){
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+ }
+
+ return kDetPidOk;
+}
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID probabilities for TOF
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetTOFPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ const Double_t meanCorrFactor = 0.11/fTOFtail; // Correction factor on the mean because of the tail (should be ~ 0.1 with tail = 1.1)
+
+ for (Int_t j=0; j<nSpecies; j++) {
+ AliPID::EParticleType type=AliPID::EParticleType(j);
+ const Double_t nsigmas=GetNumberOfSigmasTOFold(track,type) + meanCorrFactor;
+
+ const Double_t expTime = fTOFResponse.GetExpectedSignal(track,type);
+ const Double_t sig = fTOFResponse.GetExpectedSigma(track->P(),expTime,AliPID::ParticleMassZ(type));
+ if (TMath::Abs(nsigmas) > (fRange+2)) {
+ if(nsigmas < fTOFtail)
+ p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig;
+ else
+ p[j] = TMath::Exp(-(fRange+2 - fTOFtail*0.5)*fTOFtail)/sig;
+ } else{
+ if(nsigmas < fTOFtail)
+ p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig;
+ else
+ p[j] = TMath::Exp(-(nsigmas - fTOFtail*0.5)*fTOFtail)/sig;
+ }
+ }
+
+ return kDetPidOk;
+}
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod/*=AliTRDPIDResponse::kLQ1D*/) const
+{
+ //
+ // Compute PID probabilities for the TRD
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetTRDPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ UInt_t TRDslicesForPID[2];
+ SetTRDSlices(TRDslicesForPID,PIDmethod);
+
+ Float_t mom[6]={0.};
+ Double_t dedx[48]={0.}; // Allocate space for the maximum number of TRD slices
+ Int_t nslices = TRDslicesForPID[1] - TRDslicesForPID[0] + 1;
+ AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", TRDslicesForPID[0], TRDslicesForPID[1], nslices));
+ for(UInt_t ilayer = 0; ilayer < 6; ilayer++){
+ mom[ilayer] = track->GetTRDmomentum(ilayer);
+ for(UInt_t islice = TRDslicesForPID[0]; islice <= TRDslicesForPID[1]; islice++){
+ dedx[ilayer*nslices+islice-TRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice);
+ }
+ }
+
+ fTRDResponse.GetResponse(nslices, dedx, mom, p,PIDmethod);
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response for the EMCAL
+ //
+
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetEMCALPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ const Int_t nMatchClus = track->GetEMCALcluster();
+ AliVCluster *matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus);
+
+ const Double_t mom = track->P();
+ const Double_t pt = track->Pt();
+ const Int_t charge = track->Charge();
+ const Double_t fClsE = matchedClus->E();
+ const Double_t EovP = fClsE/mom;
+
+ // compute the probabilities
+ fEMCALResponse.ComputeEMCALProbability(nSpecies,pt,EovP,charge,p);
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response for the PHOS
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+ return kDetNoSignal;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const
+{
+ //
+ // Compute PID response for the HMPID
+ //
+
+ // set flat distribution (no decision)
+ for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies;
+
+ const EDetPidStatus pidStatus=GetHMPIDPIDStatus(track);
+ if (pidStatus!=kDetPidOk) return pidStatus;
+
+ track->GetHMPIDpid(p);
+
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetITSPIDStatus(const AliVTrack *track) const
+{
+ // compute ITS pid status
+
+ // check status bits
+ if ((track->GetStatus()&AliVTrack::kITSin)==0 &&
+ (track->GetStatus()&AliVTrack::kITSout)==0) return kDetNoSignal;
+
+ const Float_t dEdx=track->GetITSsignal();
+ if (dEdx<=0) return kDetNoSignal;
+
+ // requite at least 3 pid clusters
+ const UChar_t clumap=track->GetITSClusterMap();
+ Int_t nPointsForPid=0;
+ for(Int_t i=2; i<6; i++){
+ if(clumap&(1<<i)) ++nPointsForPid;
+ }
+
+ if(nPointsForPid<3) {
+ return kDetNoSignal;
+ }
+
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse:: GetTPCPIDStatus(const AliVTrack *track) const
+{
+ // compute TPC pid status
+
+ // check quality of the track
+ if ( (track->GetStatus()&AliVTrack::kTPCin )==0 && (track->GetStatus()&AliVTrack::kTPCout)==0 ) return kDetNoSignal;
+
+ // check pid values
+ const Double_t dedx=track->GetTPCsignal();
+ const UShort_t signalN=track->GetTPCsignalN();
+ if (signalN<10 || dedx<10) return kDetNoSignal;
+
+ if (!(fArrPidResponseMaster && fArrPidResponseMaster->At(AliPID::kPion))) return kDetNoParams;
+
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetTRDPIDStatus(const AliVTrack *track) const
+{
+ // compute TRD pid status
+
+ if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal;
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetTOFPIDStatus(const AliVTrack *track) const
+{
+ // compute TOF pid status
+
+ if ((track->GetStatus()&AliVTrack::kTOFout)==0) return kDetNoSignal;
+ if ((track->GetStatus()&AliVTrack::kTIME)==0) return kDetNoSignal;
+
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+Float_t AliPIDResponse::GetTOFMismatchProbability(const AliVTrack *track) const
+{
+ // compute mismatch probability cross-checking at 5 sigmas with TPC
+ // currently just implemented as a 5 sigma compatibility cut
+
+ // check pid status
+ const EDetPidStatus tofStatus=GetTOFPIDStatus(track);
+ if (tofStatus!=kDetPidOk) return 0.;
+
+ //mismatch
+ const EDetPidStatus tpcStatus=GetTPCPIDStatus(track);
+ if (tpcStatus!=kDetPidOk) return 0.;
+
+ const Double_t meanCorrFactor = 0.11/fTOFtail; // Correction factor on the mean because of the tail (should be ~ 0.1 with tail = 1.1)
+ Bool_t mismatch = kTRUE/*, heavy = kTRUE*/;
+ for (Int_t j=0; j<AliPID::kSPECIESC; j++) {
+ AliPID::EParticleType type=AliPID::EParticleType(j);
+ const Double_t nsigmas=GetNumberOfSigmasTOFold(track,type) + meanCorrFactor;
+
+ if (TMath::Abs(nsigmas)<5.){
+ const Double_t nsigmasTPC=GetNumberOfSigmasTPC(track,type);
+ if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE;
+ }
+ }
+
+ if (mismatch){
+ return 1.;
+ }
+
+ return 0.;
+}
+
+
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse:: GetHMPIDPIDStatus(const AliVTrack *track) const
+{
+ // compute HMPID pid status
+ if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal;
+ return kDetPidOk;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse:: GetPHOSPIDStatus(const AliVTrack */*track*/) const
+{
+ // compute PHOS pid status
+ return kDetNoSignal;
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse:: GetEMCALPIDStatus(const AliVTrack *track) const
+{
+ // compute EMCAL pid status
+
+
+ // Track matching
+ const Int_t nMatchClus = track->GetEMCALcluster();
+ if (nMatchClus<0) return kDetNoSignal;
+
+ AliVCluster *matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus);
+
+ if (!(matchedClus && matchedClus->IsEMCAL())) return kDetNoSignal;
+
+ const Int_t charge = track->Charge();
+ if (TMath::Abs(charge)!=1) return kDetNoSignal;
+
+ if (!(fEMCALPIDParams && fEMCALPIDParams->At(AliPID::kElectron))) return kDetNoParams;
+
+ return kDetPidOk;
+
+}
+
+//______________________________________________________________________________
+AliPIDResponse::EDetPidStatus AliPIDResponse::GetPIDStatus(EDetector detector, const AliVTrack *track) const
+{
+ //
+ // check pid status for a track
+ //
+
+ switch (detector){
+ case kITS: return GetITSPIDStatus(track); break;
+ case kTPC: return GetTPCPIDStatus(track); break;
+ case kTRD: return GetTRDPIDStatus(track); break;
+ case kTOF: return GetTOFPIDStatus(track); break;
+ case kPHOS: return GetPHOSPIDStatus(track); break;
+ case kEMCAL: return GetEMCALPIDStatus(track); break;
+ case kHMPID: return GetHMPIDPIDStatus(track); break;
+ default: return kDetNoSignal;
+ }
+ return kDetNoSignal;
+
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff