}
if (mismatch)
- for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1/AliPID::kSPECIES;
+ for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES;
track->SetTPCpid(p);
}
if (mismatch)
- for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1/AliPID::kSPECIES;
+ for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES;
track->SetTOFpid(p);
if (heavy) track->ResetStatus(AliESDtrack::kTOFpid);
- if (!CheckTOFMatching(track)) track->SetStatus(AliESDtrack::kTOFmismatch);
+ if (!CheckTOFMatching(track)) track->SetStatus(AliESDtrack::kTOFmismatch);
}
//_________________________________________________________________________
//
// Method to recalculate the TRD PID probabilities
//
- if((track->GetStatus()&AliESDtrack::kTRDout)==0) return;
- Double_t prob[AliPID::kSPECIES]; Float_t mom[6];
- Double_t dedx[48]; // Allocate space for the maximum number of TRD slices
- for(Int_t ilayer = 0; ilayer < 6; ilayer++){
- mom[ilayer] = track->GetTRDmomentum(ilayer);
- for(Int_t islice = 0; islice < track->GetNumberOfTRDslices(); islice++){
- dedx[ilayer*track->GetNumberOfTRDslices()+islice] = track->GetTRDslice(ilayer, islice);
- }
- }
- fTRDResponse.GetResponse(track->GetNumberOfTRDslices(), dedx, mom, prob);
+ Double_t prob[AliPID::kSPECIES];
+ ComputeTRDProbability(track, AliPID::kSPECIES, prob);
track->SetTRDpid(prob);
}
//_________________________________________________________________________
}
//_________________________________________________________________________
Bool_t AliESDpid::CheckTOFMatching(AliESDtrack *track) const{
+ //
+ // Check pid matching of TOF with TPC as reference
+ //
Bool_t status = kFALSE;
Double_t exptimes[5];
track->GetIntegratedTimes(exptimes);
- Float_t dedx = track->GetTPCsignal();
- Float_t time = track->GetTOFsignal();
-
Float_t p = track->P();
+ Float_t dedx = track->GetTPCsignal();
+ Float_t time = track->GetTOFsignal() - fTOFResponse.GetStartTime(p);
+
Double_t ptpc[3];
track->GetInnerPxPyPz(ptpc);
Float_t momtpc=TMath::Sqrt(ptpc[0]*ptpc[0] + ptpc[1]*ptpc[1] + ptpc[2]*ptpc[2]);
Float_t dedxExp = fTPCResponse.GetExpectedSignal(momtpc,type);
Float_t resolutionTPC = fTPCResponse.GetExpectedSigma(momtpc,track->GetTPCsignalN(),type);
- if(TMath::Abs(dedx - dedxExp) < fRange * resolutionTPC){
+ if(TMath::Abs(dedx - dedxExp) < fRangeTOFMismatch * resolutionTPC){
status = kTRUE;
}
}
}
// for nuclei
- Float_t dedxExpPr = fTPCResponse.GetExpectedSignal(momtpc,AliPID::kProton);
- Float_t resolutionTPCpr = fTPCResponse.GetExpectedSigma(momtpc,track->GetTPCsignalN(),AliPID::kProton);
- if(!status && (exptimes[4] < time && dedx > dedxExpPr + resolutionTPCpr*fRange)) status = kTRUE;
+ Float_t resolutionTOFpr = fTOFResponse.GetExpectedSigma(p, exptimes[4], AliPID::ParticleMass(4));
+ if(!status && (exptimes[4] + fRange*resolutionTOFpr < time)) status = kTRUE;
return status;
}
//_________________________________________________________________________
-void AliESDpid::SetTOFResponse(AliESDEvent *event,EStartTimeType_t option){
+void AliESDpid::SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option){
//
// Set TOF response function
// Input option for event_time used
//
+ AliESDEvent *event=(AliESDEvent*)vevent;
+
Float_t t0spread = 0.; //event->GetEventTimeSpread();
if(t0spread < 10) t0spread = 80;
// T0 from TOF algorithm
- //Float_t t0Gen,t0ResGen;
- //Int_t nt0;
- //Float_t t0ESD[fTOFResponse.GetNmomBins()],t0resESD[fTOFResponse.GetNmomBins()];
- //Int_t it0ESD[fTOFResponse.GetNmomBins()];
Bool_t flagT0TOF=kFALSE;
Bool_t flagT0T0=kFALSE;
Float_t *startTime = new Float_t[fTOFResponse.GetNmomBins()];
Float_t *startTimeRes = new Float_t[fTOFResponse.GetNmomBins()];
+ Int_t *startTimeMask = new Int_t[fTOFResponse.GetNmomBins()];
+ // T0-TOF arrays
Float_t *estimatedT0event = new Float_t[fTOFResponse.GetNmomBins()];
Float_t *estimatedT0resolution = new Float_t[fTOFResponse.GetNmomBins()];
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
estimatedT0event[i]=0.0;
estimatedT0resolution[i]=0.0;
+ startTimeMask[i] = 0;
}
- if(event->GetT0TOF()){
+ Float_t resT0A=75,resT0C=65,resT0AC=55;
+ if(event->GetT0TOF()){ // check if T0 detector information is available
flagT0T0=kTRUE;
}
AliTOFHeader *tofHeader =(AliTOFHeader*)event->GetTOFHeader();
- if(tofHeader){
+ if(tofHeader){ // read global info and T0-TOF info from ESD
fTOFResponse.SetTimeResolution(tofHeader->GetTOFResolution());
- t0spread = tofHeader->GetT0spread();
+ t0spread = tofHeader->GetT0spread(); // read t0 sprad
if(t0spread < 10) t0spread = 80;
flagT0TOF=kTRUE;
- for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- startTime[i]=tofHeader->GetDefaultEventTimeVal();//t0Gen;
- startTimeRes[i]=tofHeader->GetDefaultEventTimeRes();//t0ResGen;
+ for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ // read T0-TOF default value
+ startTime[i]=tofHeader->GetDefaultEventTimeVal();
+ startTimeRes[i]=tofHeader->GetDefaultEventTimeRes();
+ if(startTimeRes[i] < 1.e-5) startTimeRes[i] = t0spread;
}
TArrayI *ibin=tofHeader->GetNvalues();
TArrayF *t0Bin=tofHeader->GetEventTimeValues();
TArrayF *t0ResBin=tofHeader->GetEventTimeRes();
- for(Int_t j=0;j < tofHeader->GetNbins();j++){
+ for(Int_t j=0;j < tofHeader->GetNbins();j++){ // fill T0-TOF in p-bins
Int_t icurrent = (Int_t)ibin->GetAt(j);
- startTime[icurrent]=t0Bin->GetAt(j);//t0ESD[j];
- startTimeRes[icurrent]=t0ResBin->GetAt(j);//t0resESD[j];
- }
+ startTime[icurrent]=t0Bin->GetAt(j);
+ startTimeRes[icurrent]=t0ResBin->GetAt(j);
+ if(startTimeRes[icurrent] < 1.e-5) startTimeRes[icurrent] = t0spread;
+ }
}
+ // for cut of 3 sigma on t0 spread
+ Float_t t0cut = 3 * t0spread;
+ if(t0cut < 500) t0cut = 500;
+
if(option == kFILL_T0){ // T0-FILL is used
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
estimatedT0event[i]=0.0;
estimatedT0resolution[i]=t0spread;
- //fT0event[i] = 0.0;
- //fT0resolution[i] = t0spread;
}
fTOFResponse.SetT0event(estimatedT0event);
fTOFResponse.SetT0resolution(estimatedT0resolution);
}
+
if(option == kTOF_T0){ // T0-TOF is used when available (T0-FILL otherwise) from ESD
if(flagT0TOF){
- for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- estimatedT0event[i]=0.0;
- estimatedT0resolution[i]=t0spread;
- //fT0event[i] = startTime[i];
- //fT0resolution[i] = startTimeRes[i];
- }
fTOFResponse.SetT0event(startTime);
fTOFResponse.SetT0resolution(startTimeRes);
+ for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
+ if(startTimeRes[i]<t0spread) startTimeMask[i]=1;
+ fTOFResponse.SetT0binMask(i,startTimeMask[i]);
+ }
}
else{
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
estimatedT0event[i]=0.0;
estimatedT0resolution[i]=t0spread;
- //fT0event[i] = 0.0;
- //fT0resolution[i] = t0spread;
+ fTOFResponse.SetT0binMask(i,startTimeMask[i]);
}
fTOFResponse.SetT0event(estimatedT0event);
fTOFResponse.SetT0resolution(estimatedT0resolution);
}
}
- else if(option == kBest_T0){ // T0-T0 is used when available (T0-FILL otherwise) from ESD
+ else if(option == kBest_T0){ // T0-T0 or T0-TOF are used when available (T0-FILL otherwise) from ESD
Float_t t0AC=-10000;
Float_t t0A=-10000;
Float_t t0C=-10000;
Float_t t0t0Best = 0;
Float_t t0t0BestRes = 9999;
- if(TMath::Abs(t0AC) < 500){
+ Int_t t0used=0;
+ if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){
t0t0Best = t0AC;
- t0t0BestRes = 55;
- }
- else if(TMath::Abs(t0A) < 500){
- t0t0Best = t0A;
- t0t0BestRes = 75;
+ t0t0BestRes = resT0AC;
+ t0used=6;
}
- else if(TMath::Abs(t0C) < 500){
+ else if(TMath::Abs(t0C) < t0cut){
t0t0Best = t0C;
- t0t0BestRes = 65;
+ t0t0BestRes = resT0C;
+ t0used=4;
+ }
+ else if(TMath::Abs(t0A) < t0cut){
+ t0t0Best = t0A;
+ t0t0BestRes = resT0A;
+ t0used=2;
}
if(flagT0TOF){ // if T0-TOF info is available
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- if(t0t0BestRes<300){
- if(startTimeRes[i]<t0spread){
+ if(t0t0BestRes < 999){
+ if(startTimeRes[i] < t0spread){
Double_t wtot = 1./startTimeRes[i]/startTimeRes[i] + 1./t0t0BestRes/t0t0BestRes;
Double_t t0best = startTime[i]/startTimeRes[i]/startTimeRes[i] + t0t0Best/t0t0BestRes/t0t0BestRes;
estimatedT0event[i]=t0best / wtot;
estimatedT0resolution[i]=1./TMath::Sqrt(wtot);
- //fT0event[i]=t0best / wtot;
- //fT0resolution[i]=1./TMath::Sqrt(wtot);
+ startTimeMask[i] = t0used+1;
}
else {
estimatedT0event[i]=t0t0Best;
estimatedT0resolution[i]=t0t0BestRes;
- //fT0event[i] = t0t0Best;
- //fT0resolution[i] = t0t0BestRes;
+ startTimeMask[i] = t0used;
}
}
else{
estimatedT0event[i]=startTime[i];
estimatedT0resolution[i]=startTimeRes[i];
- //fT0event[i] = startTime[i];
- //fT0resolution[i] = startTimeRes[i];
+ if(startTimeRes[i]<t0spread) startTimeMask[i]=1;
}
+ fTOFResponse.SetT0binMask(i,startTimeMask[i]);
}
fTOFResponse.SetT0event(estimatedT0event);
fTOFResponse.SetT0resolution(estimatedT0resolution);
}
else{ // if no T0-TOF info is available
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- if(t0t0BestRes<300){
- estimatedT0event[i]=t0t0Best;
- estimatedT0resolution[i]=t0t0BestRes;
- //fT0event[i] = t0t0Best;
- //fT0resolution[i] = t0t0BestRes;
- }
- else{
- estimatedT0event[i]=0.0;
- estimatedT0resolution[i]=t0spread;
- //fT0event[i] = 0.0;
- //fT0resolution[i] = t0spread;
- }
+ fTOFResponse.SetT0binMask(i,t0used);
+ if(t0t0BestRes < 999){
+ estimatedT0event[i]=t0t0Best;
+ estimatedT0resolution[i]=t0t0BestRes;
+ }
+ else{
+ estimatedT0event[i]=0.0;
+ estimatedT0resolution[i]=t0spread;
+ }
}
fTOFResponse.SetT0event(estimatedT0event);
fTOFResponse.SetT0resolution(estimatedT0resolution);
}
}
- else if(option == kT0_T0){ // the best of what available (T0-FILL otherwise) from ESD
+
+ else if(option == kT0_T0){ // T0-T0 is used when available (T0-FILL otherwise) from ESD
Float_t t0AC=-10000;
Float_t t0A=-10000;
Float_t t0C=-10000;
t0C= event->GetT0TOF()[2];
}
-// printf("T0_T0 = %f %f %f\n",t0AC,t0A,t0C);
-
- if(TMath::Abs(t0AC) < 500){
+ if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
estimatedT0event[i]=t0AC;
- estimatedT0resolution[i]=55;
- //fT0event[i] = t0AC;
- //fT0resolution[i] = 55;
+ estimatedT0resolution[i]=resT0AC;
+ fTOFResponse.SetT0binMask(i,6);
}
}
- else if(TMath::Abs(t0A) < 500){
+ else if(TMath::Abs(t0C) < t0cut){
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- estimatedT0event[i]=t0A;
- estimatedT0resolution[i]=75;
- //fT0event[i] = t0A;
- //fT0resolution[i] = 75;
+ estimatedT0event[i]=t0C;
+ estimatedT0resolution[i]=resT0C;
+ fTOFResponse.SetT0binMask(i,4);
}
}
- else if(TMath::Abs(t0C) < 500){
+ else if(TMath::Abs(t0A) < t0cut){
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
- estimatedT0event[i]=t0C;
- estimatedT0resolution[i]=65;
- //fT0event[i] = t0C;
- //fT0resolution[i] = 65;
+ estimatedT0event[i]=t0A;
+ estimatedT0resolution[i]=resT0A;
+ fTOFResponse.SetT0binMask(i,2);
}
}
else{
for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
estimatedT0event[i]=0.0;
estimatedT0resolution[i]=t0spread;
- //fT0event[i] = 0.0;
- //fT0resolution[i] = t0spread;
+ fTOFResponse.SetT0binMask(i,0);
}
}
fTOFResponse.SetT0event(estimatedT0event);
}
delete [] startTime;
delete [] startTimeRes;
+ delete [] startTimeMask;
delete [] estimatedT0event;
delete [] estimatedT0resolution;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff