//-----------------------------------------------------------------
// Implementation of the ESD track class
+// ESD = Event Summary Data
// This is the class to deal with during the phisical analysis of data
-//
-// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
+// Origin: Iouri Belikov, CERN
+// e-mail: Jouri.Belikov@cern.ch
//-----------------------------------------------------------------
#include "TMath.h"
//_______________________________________________________________________
AliESDtrack::AliESDtrack() :
-fFlags(0),
+fFlags(0),
+fLabel(0),
+fTrackLength(0),
+fStopVertex(0),
+fRalpha(0),
+fRx(0),
+fCalpha(0),
+fCx(0),
+fCchi2(1e10),
+fIalpha(0),
+fIx(0),
+fOalpha(0),
+fOx(0),
+fITSchi2(0),
fITSncls(0),
-fVertex(kFALSE),
-fTPCncls(0)
+fITSsignal(0),
+fTPCchi2(0),
+fTPCncls(0),
+fTPCClusterMap(159),//number of padrows
+fTPCsignal(0),
+fTRDchi2(0),
+fTRDncls(0),
+fTRDsignal(0),
+fTOFchi2(0),
+fTOFindex(0),
+fTOFsignal(-1),
+fPHOSsignal(-1),
+fRICHsignal(-1)
{
//
// The default ESD constructor
//
- for (Int_t i=0; i<kSPECIES; i++) fR[i]=0.;
+ for (Int_t i=0; i<kSPECIES; i++) {
+ fTrackTime[i]=0.;
+ fR[i]=1.;
+ fITSr[i]=1.;
+ fTPCr[i]=1.;
+ fTRDr[i]=1.;
+ fTOFr[i]=1.;
+ fPHOSr[i]=1.;
+ fRICHr[i]=1.;
+ }
+ fPHOSpos[0]=fPHOSpos[1]=fPHOSpos[2]=0.;
+ Int_t i;
+ for (i=0; i<5; i++) { fRp[i]=0.; fCp[i]=0.; fIp[i]=0.; fOp[i]=0.;}
+ for (i=0; i<15; i++) { fRc[i]=0.; fCc[i]=0.; fIc[i]=0.; fOc[i]=0.; }
+ for (i=0; i<6; i++) { fITSindex[i]=0; }
+ for (i=0; i<180; i++){ fTPCindex[i]=0; }
+ for (i=0; i<90; i++) { fTRDindex[i]=0; }
+ fTPCLabel = 0;
+ fTRDLabel = 0;
+ fITSLabel = 0;
+
}
//_______________________________________________________________________
-Float_t AliESDtrack::GetMass() const {
+Double_t AliESDtrack::GetMass() const {
+ // Returns the mass of the most probable particle type
Float_t max=0.;
Int_t k=-1;
for (Int_t i=0; i<kSPECIES; i++) {
//
// This function updates track's running parameters
//
+ SetStatus(flags);
+ fLabel=t->GetLabel();
+
+ if (t->IsStartedTimeIntegral()) {
+ SetStatus(kTIME);
+ Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times);
+ SetIntegratedLength(t->GetIntegratedLength());
+ }
+
+ fRalpha=t->GetAlpha();
+ t->GetExternalParameters(fRx,fRp);
+ t->GetExternalCovariance(fRc);
+
switch (flags) {
- case kITSin:
- case kITSout:
- case kITSrefit:
+ case kITSin: case kITSout: case kITSrefit:
fITSncls=t->GetNumberOfClusters();
fITSchi2=t->GetChi2();
for (Int_t i=0;i<fITSncls;i++) fITSindex[i]=t->GetClusterIndex(i);
fITSsignal=t->GetPIDsignal();
+ fITSLabel = t->GetLabel();
+ fITSFakeRatio = t->GetFakeRatio();
break;
- case kTPCin: case kTPCout: case kTPCrefit:
+ case kTPCin: case kTPCrefit:
+ fTPCLabel = t->GetLabel();
+ fIalpha=fRalpha;
+ fIx=fRx;
+ {
+ Int_t i;
+ for (i=0; i<5; i++) fIp[i]=fRp[i];
+ for (i=0; i<15;i++) fIc[i]=fRc[i];
+ }
+ case kTPCout:
+
fTPCncls=t->GetNumberOfClusters();
fTPCchi2=t->GetChi2();
- for (Int_t i=0;i<fTPCncls;i++) fTPCindex[i]=t->GetClusterIndex(i);
+
+ {//prevrow must be declared in separate namespace, otherwise compiler cries:
+ //"jump to case label crosses initialization of `Int_t prevrow'"
+ Int_t prevrow = -1;
+ // for (Int_t i=0;i<fTPCncls;i++)
+ for (Int_t i=0;i<160;i++)
+ {
+ fTPCindex[i]=t->GetClusterIndex(i);
+
+ // Piotr's Cluster Map for HBT
+ // ### please change accordingly if cluster array is changing
+ // to "New TPC Tracking" style (with gaps in array)
+ Int_t idx = fTPCindex[i];
+ Int_t sect = (idx&0xff000000)>>24;
+ Int_t row = (idx&0x00ff0000)>>16;
+ if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors
+
+ fTPCClusterMap.SetBitNumber(row,kTRUE);
+
+ //Fill the gap between previous row and this row with 0 bits
+ //In case ### pleas change it as well - just set bit 0 in case there
+ //is no associated clusters for current "i"
+ if (prevrow < 0)
+ {
+ prevrow = row;//if previous bit was not assigned yet == this is the first one
+ }
+ else
+ { //we don't know the order (inner to outer or reverse)
+ //just to be save in case it is going to change
+ Int_t n = 0, m = 0;
+ if (prevrow < row)
+ {
+ n = prevrow;
+ m = row;
+ }
+ else
+ {
+ n = row;
+ m = prevrow;
+ }
+
+ for (Int_t j = n+1; j < m; j++)
+ {
+ fTPCClusterMap.SetBitNumber(j,kFALSE);
+ }
+ prevrow = row;
+ }
+ // End Of Piotr's Cluster Map for HBT
+ }
+ }
fTPCsignal=t->GetPIDsignal();
{Double_t mass=t->GetMass(); // preliminary mass setting
if (mass>0.5) fR[4]=1.; // used by
else if (mass<0.4) fR[2]=1.; // the ITS reconstruction
- else fR[3]=1.;} //
+ else fR[3]=1.;}
+ //
break;
- case kTRDin: case kTRDout: case kTRDrefit:
+
+ case kTRDout:
+ { //requested by the PHOS ("temporary solution")
+ Double_t r=460.;
+ if (t->PropagateTo(r,30.,0.)) {
+ fOalpha=t->GetAlpha();
+ t->GetExternalParameters(fOx,fOp);
+ t->GetExternalCovariance(fOc);
+ }
+ }
+ case kTRDin: case kTRDrefit:
+ fTRDLabel = t->GetLabel();
+
fTRDncls=t->GetNumberOfClusters();
fTRDchi2=t->GetChi2();
+ for (Int_t i=0;i<fTRDncls;i++) fTRDindex[i]=t->GetClusterIndex(i);
fTRDsignal=t->GetPIDsignal();
break;
+ case kTRDStop:
+ break;
default:
Error("UpdateTrackParams()","Wrong flag !\n");
return kFALSE;
}
- SetStatus(flags);
- fLabel=t->GetLabel();
-
- if (t->IsStartedTimeIntegral()) {
- SetStatus(kTIME);
- Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times);
- SetIntegratedLength(t->GetIntegratedLength());
- }
-
- fRalpha=t->GetAlpha();
- t->GetExternalParameters(fRx,fRp);
- t->GetExternalCovariance(fRc);
-
- if (flags == kITSin)
- {
- t->PropagateTo(3.,0.0028,65.19);
- t->PropagateToPrimVertex(0.,0.);
-
- Double_t ralpha=t->GetAlpha();
- Double_t rx; // X-coordinate of the track reference plane
- Double_t rp[5]; // external track parameters
- t->GetExternalParameters(rx,rp);
-
- Double_t phi=TMath::ASin(rp[2]) + ralpha;
- Double_t pt=1./TMath::Abs(rp[4]);
- Double_t r=TMath::Sqrt(rx*rx + rp[0]*rp[0]);
-
- fVertexX=r*TMath::Cos(phi);
- fVertexY=r*TMath::Sin(phi);
- fVertexZ=rp[1];
-
- fVertexPx = pt*TMath::Cos(phi);
- fVertexPy = pt*TMath::Sin(phi);
- fVertexPz = pt*rp[3];
- fVertex = kTRUE;
- }
-
return kTRUE;
}
//_______________________________________________________________________
-void AliESDtrack::GetExternalParametersAt(Double_t x, Double_t p[5]) const {
- //---------------------------------------------------------------------
- // This function returns external representation of the track parameters
- // at the plane x
- //---------------------------------------------------------------------
- Double_t dx=x-fRx;
- Double_t c=fRp[4]/AliKalmanTrack::GetConvConst();
- Double_t f1=fRp[2], f2=f1 + c*dx;
- Double_t r1=sqrt(1.- f1*f1), r2=sqrt(1.- f2*f2);
-
- p[0]=fRp[0]+dx*(f1+f2)/(r1+r2);
- p[1]=fRp[1]+dx*(f1+f2)/(f1*r2 + f2*r1)*fRp[3];
- p[2]=fRp[2]+dx*c;
- p[3]=fRp[3];
- p[4]=fRp[4];
+void
+AliESDtrack::SetConstrainedTrackParams(AliKalmanTrack *t, Double_t chi2) {
+ //
+ // This function sets the constrained track parameters
+ //
+ fCalpha=t->GetAlpha();
+ t->GetExternalParameters(fCx,fCp);
+ t->GetExternalCovariance(fCc);
+ fCchi2=chi2;
}
+
//_______________________________________________________________________
void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
x=fRx;
for (Int_t i=0; i<5; i++) p[i]=fRp[i];
}
+//_______________________________________________________________________
+void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const {
+ //---------------------------------------------------------------------
+ // This function returns external representation of the cov. matrix
+ //---------------------------------------------------------------------
+ for (Int_t i=0; i<15; i++) cov[i]=fRc[i];
+}
+
+
+//_______________________________________________________________________
+void
+AliESDtrack::GetConstrainedExternalParameters(Double_t &x, Double_t p[5])const{
+ //---------------------------------------------------------------------
+ // This function returns the constrained external track parameters
+ //---------------------------------------------------------------------
+ x=fCx;
+ for (Int_t i=0; i<5; i++) p[i]=fCp[i];
+}
+//_______________________________________________________________________
+void
+AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const {
+ //---------------------------------------------------------------------
+ // This function returns the constrained external cov. matrix
+ //---------------------------------------------------------------------
+ for (Int_t i=0; i<15; i++) c[i]=fCc[i];
+}
+
Double_t AliESDtrack::GetP() const {
//---------------------------------------------------------------------
return pt/TMath::Cos(lam);
}
+void AliESDtrack::GetConstrainedPxPyPz(Double_t *p) const {
+ //---------------------------------------------------------------------
+ // This function returns the constrained global track momentum components
+ //---------------------------------------------------------------------
+ Double_t phi=TMath::ASin(fCp[2]) + fCalpha;
+ Double_t pt=1./TMath::Abs(fCp[4]);
+ p[0]=pt*TMath::Cos(phi); p[1]=pt*TMath::Sin(phi); p[2]=pt*fCp[3];
+}
+void AliESDtrack::GetConstrainedXYZ(Double_t *xyz) const {
+ //---------------------------------------------------------------------
+ // This function returns the global track position
+ //---------------------------------------------------------------------
+ Double_t phi=TMath::ATan2(fCp[0],fCx) + fCalpha;
+ Double_t r=TMath::Sqrt(fCx*fCx + fCp[0]*fCp[0]);
+ xyz[0]=r*TMath::Cos(phi); xyz[1]=r*TMath::Sin(phi); xyz[2]=fCp[1];
+}
+
void AliESDtrack::GetPxPyPz(Double_t *p) const {
//---------------------------------------------------------------------
// This function returns the global track momentum components
Double_t pt=1./TMath::Abs(fRp[4]);
p[0]=pt*TMath::Cos(phi); p[1]=pt*TMath::Sin(phi); p[2]=pt*fRp[3];
}
-
void AliESDtrack::GetXYZ(Double_t *xyz) const {
//---------------------------------------------------------------------
// This function returns the global track position
//---------------------------------------------------------------------
- Double_t phi=TMath::ASin(fRp[2]) + fRalpha;
+ Double_t phi=TMath::ATan2(fRp[0],fRx) + fRalpha;
Double_t r=TMath::Sqrt(fRx*fRx + fRp[0]*fRp[0]);
xyz[0]=r*TMath::Cos(phi); xyz[1]=r*TMath::Sin(phi); xyz[2]=fRp[1];
}
-//_______________________________________________________________________
-void AliESDtrack::GetExternalCovariance(Double_t c[15]) const {
+
+void AliESDtrack::GetInnerPxPyPz(Double_t *p) const {
//---------------------------------------------------------------------
- // This function returns external representation of the cov. matrix
+ // This function returns the global track momentum components
+ // af the entrance of the TPC
+ //---------------------------------------------------------------------
+ if (fIx==0) {p[0]=p[1]=p[2]=0.; return;}
+ Double_t phi=TMath::ASin(fIp[2]) + fIalpha;
+ Double_t pt=1./TMath::Abs(fIp[4]);
+ p[0]=pt*TMath::Cos(phi); p[1]=pt*TMath::Sin(phi); p[2]=pt*fIp[3];
+}
+
+void AliESDtrack::GetInnerXYZ(Double_t *xyz) const {
+ //---------------------------------------------------------------------
+ // This function returns the global track position
+ // af the entrance of the TPC
+ //---------------------------------------------------------------------
+ if (fIx==0) {xyz[0]=xyz[1]=xyz[2]=0.; return;}
+ Double_t phi=TMath::ATan2(fIp[0],fIx) + fIalpha;
+ Double_t r=TMath::Sqrt(fIx*fIx + fIp[0]*fIp[0]);
+ xyz[0]=r*TMath::Cos(phi); xyz[1]=r*TMath::Sin(phi); xyz[2]=fIp[1];
+}
+
+void AliESDtrack::GetInnerExternalParameters(Double_t &x, Double_t p[5]) const
+{
+ //skowron
+ //---------------------------------------------------------------------
+ // This function returns external representation of the track parameters at Inner Layer of TPC
+ //---------------------------------------------------------------------
+ x=fIx;
+ for (Int_t i=0; i<5; i++) p[i]=fIp[i];
+}
+void AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const
+{
+ //skowron
+ //---------------------------------------------------------------------
+ // This function returns external representation of the cov. matrix at Inner Layer of TPC
+ //---------------------------------------------------------------------
+ for (Int_t i=0; i<15; i++) cov[i]=fIc[i];
+
+}
+
+void AliESDtrack::GetOuterPxPyPz(Double_t *p) const {
+ //---------------------------------------------------------------------
+ // This function returns the global track momentum components
+ // af the radius of the PHOS
+ //---------------------------------------------------------------------
+ if (fOx==0) {p[0]=p[1]=p[2]=0.; return;}
+ Double_t phi=TMath::ASin(fOp[2]) + fOalpha;
+ Double_t pt=1./TMath::Abs(fOp[4]);
+ p[0]=pt*TMath::Cos(phi); p[1]=pt*TMath::Sin(phi); p[2]=pt*fOp[3];
+}
+
+void AliESDtrack::GetOuterXYZ(Double_t *xyz) const {
+ //---------------------------------------------------------------------
+ // This function returns the global track position
+ // af the radius of the PHOS
//---------------------------------------------------------------------
- for (Int_t i=0; i<15; i++) c[i]=fRc[i];
+ if (fOx==0) {xyz[0]=xyz[1]=xyz[2]=0.; return;}
+ Double_t phi=TMath::ATan2(fOp[0],fOx) + fOalpha;
+ Double_t r=TMath::Sqrt(fOx*fOx + fOp[0]*fOp[0]);
+ xyz[0]=r*TMath::Cos(phi); xyz[1]=r*TMath::Sin(phi); xyz[2]=fOp[1];
}
//_______________________________________________________________________
void AliESDtrack::GetIntegratedTimes(Double_t *times) const {
+ // Returns the array with integrated times for each particle hypothesis
for (Int_t i=0; i<kSPECIES; i++) times[i]=fTrackTime[i];
}
//_______________________________________________________________________
void AliESDtrack::SetIntegratedTimes(const Double_t *times) {
+ // Sets the array with integrated times for each particle hypotesis
for (Int_t i=0; i<kSPECIES; i++) fTrackTime[i]=times[i];
}
//_______________________________________________________________________
-void AliESDtrack::SetITSpid(const Double_t *p) {
+void AliESDtrack::SetITSpid(const Double_t *p) {
+ // Sets values for the probability of each particle type (in ITS)
for (Int_t i=0; i<kSPECIES; i++) fITSr[i]=p[i];
SetStatus(AliESDtrack::kITSpid);
}
+void AliESDtrack::SetITSChi2MIP(const Float_t *chi2mip){
+ for (Int_t i=0; i<6; i++) fITSchi2MIP[i]=chi2mip[i];
+}
//_______________________________________________________________________
void AliESDtrack::GetITSpid(Double_t *p) const {
+ // Gets the probability of each particle type (in ITS)
for (Int_t i=0; i<kSPECIES; i++) p[i]=fITSr[i];
}
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetTPCclusters(UInt_t *idx) const {
+Int_t AliESDtrack::GetTPCclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
- for (Int_t i=0; i<fTPCncls; i++) idx[i]=fTPCindex[i];
+ if (idx!=0)
+ for (Int_t i=0; i<180; i++) idx[i]=fTPCindex[i]; // MI I prefer some constant
return fTPCncls;
}
//_______________________________________________________________________
void AliESDtrack::SetTPCpid(const Double_t *p) {
+ // Sets values for the probability of each particle type (in TPC)
for (Int_t i=0; i<kSPECIES; i++) fTPCr[i]=p[i];
SetStatus(AliESDtrack::kTPCpid);
}
//_______________________________________________________________________
void AliESDtrack::GetTPCpid(Double_t *p) const {
+ // Gets the probability of each particle type (in TPC)
for (Int_t i=0; i<kSPECIES; i++) p[i]=fTPCr[i];
}
+//_______________________________________________________________________
+Int_t AliESDtrack::GetTRDclusters(UInt_t *idx) const {
+ //---------------------------------------------------------------------
+ // This function returns indices of the assgined TRD clusters
+ //---------------------------------------------------------------------
+ if (idx!=0)
+ for (Int_t i=0; i<90; i++) idx[i]=fTRDindex[i]; // MI I prefer some constant
+ return fTRDncls;
+}
+
//_______________________________________________________________________
void AliESDtrack::SetTRDpid(const Double_t *p) {
+ // Sets values for the probability of each particle type (in TRD)
for (Int_t i=0; i<kSPECIES; i++) fTRDr[i]=p[i];
SetStatus(AliESDtrack::kTRDpid);
}
//_______________________________________________________________________
void AliESDtrack::GetTRDpid(Double_t *p) const {
+ // Gets the probability of each particle type (in TRD)
for (Int_t i=0; i<kSPECIES; i++) p[i]=fTRDr[i];
}
//_______________________________________________________________________
void AliESDtrack::SetTRDpid(Int_t iSpecies, Float_t p)
{
+ // Sets the probability of particle type iSpecies to p (in TRD)
fTRDr[iSpecies] = p;
}
Float_t AliESDtrack::GetTRDpid(Int_t iSpecies) const
{
+ // Returns the probability of particle type iSpecies (in TRD)
return fTRDr[iSpecies];
}
//_______________________________________________________________________
void AliESDtrack::SetTOFpid(const Double_t *p) {
+ // Sets the probability of each particle type (in TOF)
for (Int_t i=0; i<kSPECIES; i++) fTOFr[i]=p[i];
SetStatus(AliESDtrack::kTOFpid);
}
//_______________________________________________________________________
void AliESDtrack::GetTOFpid(Double_t *p) const {
+ // Gets probabilities of each particle type (in TOF)
for (Int_t i=0; i<kSPECIES; i++) p[i]=fTOFr[i];
}
+
+
+//_______________________________________________________________________
+void AliESDtrack::SetPHOSpid(const Double_t *p) {
+ // Sets the probability of each particle type (in PHOS)
+ for (Int_t i=0; i<kSPECIES; i++) fPHOSr[i]=p[i];
+ SetStatus(AliESDtrack::kPHOSpid);
+}
+
+//_______________________________________________________________________
+void AliESDtrack::GetPHOSpid(Double_t *p) const {
+ // Gets probabilities of each particle type (in PHOS)
+ for (Int_t i=0; i<kSPECIES; i++) p[i]=fPHOSr[i];
+}
+
+
+//_______________________________________________________________________
+void AliESDtrack::SetRICHpid(const Double_t *p) {
+ // Sets the probability of each particle type (in RICH)
+ for (Int_t i=0; i<kSPECIES; i++) fRICHr[i]=p[i];
+ SetStatus(AliESDtrack::kRICHpid);
+}
+
+//_______________________________________________________________________
+void AliESDtrack::GetRICHpid(Double_t *p) const {
+ // Gets probabilities of each particle type (in RICH)
+ for (Int_t i=0; i<kSPECIES; i++) p[i]=fRICHr[i];
+}
+
+
+
//_______________________________________________________________________
void AliESDtrack::SetESDpid(const Double_t *p) {
+ // Sets the probability of each particle type for the ESD track
for (Int_t i=0; i<kSPECIES; i++) fR[i]=p[i];
SetStatus(AliESDtrack::kESDpid);
}
//_______________________________________________________________________
void AliESDtrack::GetESDpid(Double_t *p) const {
+ // Gets probability of each particle type for the ESD track
for (Int_t i=0; i<kSPECIES; i++) p[i]=fR[i];
}
-void AliESDtrack::GetVertexXYZ(Double_t& x,Double_t& y, Double_t&z) const
-{
-//returns track position in DCA to vertex
- x = fVertexX;
- y = fVertexY;
- z = fVertexZ;
-}
-void AliESDtrack::GetVertexPxPyPz(Double_t& px,Double_t& py, Double_t& pz) const
-{
-//returns track momentum in DCA to vertex
- px = fVertexPx;
- py = fVertexPy;
- pz = fVertexPz;
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff