+//_________________________________________________________________________
+Bool_t AliESDpid::CheckTOFMatching(AliESDtrack *track) const{
+ Bool_t status = kFALSE;
+
+ Double_t exptimes[5];
+ track->GetIntegratedTimes(exptimes);
+
+ 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]);
+
+ for(Int_t i=0;i < 5;i++){
+ AliPID::EParticleType type=AliPID::EParticleType(i);
+
+ Float_t resolutionTOF = fTOFResponse.GetExpectedSigma(p, exptimes[i], AliPID::ParticleMass(i));
+ if(TMath::Abs(exptimes[i] - time) < fRange * resolutionTOF){
+ Float_t dedxExp = fTPCResponse.GetExpectedSignal(momtpc,type);
+ Float_t resolutionTPC = fTPCResponse.GetExpectedSigma(momtpc,track->GetTPCsignalN(),type);
+
+ if(TMath::Abs(dedx - dedxExp) < fRangeTOFMismatch * resolutionTPC){
+ status = kTRUE;
+ }
+ }
+ }
+
+ // for nuclei
+ 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){
+ //
+ // Set TOF response function
+ // Input option for event_time used
+ //
+
+ Float_t t0spread = 0.; //event->GetEventTimeSpread();
+ if(t0spread < 10) t0spread = 80;
+
+ // T0 from TOF algorithm
+
+ 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;
+ }
+
+ 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){ // read global info and T0-TOF info from ESD
+ fTOFResponse.SetTimeResolution(tofHeader->GetTOFResolution());
+ t0spread = tofHeader->GetT0spread(); // read t0 sprad
+ if(t0spread < 10) t0spread = 80;
+
+ flagT0TOF=kTRUE;
+ for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ // read T0-TOF default value
+ startTime[i]=tofHeader->GetDefaultEventTimeVal();
+ startTimeRes[i]=tofHeader->GetDefaultEventTimeRes();
+ }
+
+ TArrayI *ibin=tofHeader->GetNvalues();
+ TArrayF *t0Bin=tofHeader->GetEventTimeValues();
+ TArrayF *t0ResBin=tofHeader->GetEventTimeRes();
+ 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);
+ startTimeRes[icurrent]=t0ResBin->GetAt(j);
+ }
+ }
+
+ // 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;
+ }
+ fTOFResponse.SetT0event(estimatedT0event);
+ fTOFResponse.SetT0resolution(estimatedT0resolution);
+ }
+
+ if(option == kTOF_T0){ // T0-TOF is used when available (T0-FILL otherwise) from ESD
+ if(flagT0TOF){
+ 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;
+ fTOFResponse.SetT0binMask(i,startTimeMask[i]);
+ }
+ fTOFResponse.SetT0event(estimatedT0event);
+ fTOFResponse.SetT0resolution(estimatedT0resolution);
+ }
+ }
+ 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;
+ if(flagT0T0){
+ t0AC= event->GetT0TOF()[0];
+ t0A= event->GetT0TOF()[1];
+ t0C= event->GetT0TOF()[2];
+ }
+
+ Float_t t0t0Best = 0;
+ Float_t t0t0BestRes = 9999;
+ Int_t t0used=0;
+ if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){
+ t0t0Best = t0AC;
+ t0t0BestRes = resT0AC;
+ t0used=6;
+ }
+ else if(TMath::Abs(t0C) < t0cut){
+ t0t0Best = t0C;
+ 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 < 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);
+ startTimeMask[i] = t0used+1;
+ }
+ else {
+ estimatedT0event[i]=t0t0Best;
+ estimatedT0resolution[i]=t0t0BestRes;
+ startTimeMask[i] = t0used;
+ }
+ }
+ else{
+ estimatedT0event[i]=startTime[i];
+ estimatedT0resolution[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++){
+ 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){ // T0-T0 is used when available (T0-FILL otherwise) from ESD
+ Float_t t0AC=-10000;
+ Float_t t0A=-10000;
+ Float_t t0C=-10000;
+ if(flagT0T0){
+ t0AC= event->GetT0TOF()[0];
+ t0A= event->GetT0TOF()[1];
+ t0C= event->GetT0TOF()[2];
+ }
+
+ 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]=resT0AC;
+ fTOFResponse.SetT0binMask(i,6);
+ }
+ }
+ else if(TMath::Abs(t0C) < t0cut){
+ for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
+ estimatedT0event[i]=t0C;
+ estimatedT0resolution[i]=resT0C;
+ fTOFResponse.SetT0binMask(i,4);
+ }
+ }
+ else if(TMath::Abs(t0A) < t0cut){
+ for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){
+ 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;
+ fTOFResponse.SetT0binMask(i,0);
+ }
+ }
+ fTOFResponse.SetT0event(estimatedT0event);
+ fTOFResponse.SetT0resolution(estimatedT0resolution);
+ }
+ delete [] startTime;
+ delete [] startTimeRes;
+ delete [] startTimeMask;
+ delete [] estimatedT0event;
+ delete [] estimatedT0resolution;
+}