* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
//-----------------------------------------------------------------
// Implementation of the ESD track class
// ESD = Event Summary Data
-// This is the class to deal with during the phisical analysis of data
+// This is the class to deal with during the phisics analysis of data
// Origin: Iouri Belikov, CERN
// e-mail: Jouri.Belikov@cern.ch
//-----------------------------------------------------------------
#include "AliESDtrack.h"
#include "AliKalmanTrack.h"
+#include "AliLog.h"
ClassImp(AliESDtrack)
//_______________________________________________________________________
AliESDtrack::AliESDtrack() :
-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),
-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)
+ TObject(),
+ fFlags(0),
+ fLabel(0),
+ fID(0),
+ fTrackLength(0),
+ fD(0),
+ fZ(0),
+ fStopVertex(0),
+ fRalpha(0),
+ fRx(0),
+ fCalpha(0),
+ fCx(0),
+ fCchi2(1e10),
+ fIalpha(0),
+ fIx(0),
+ fTalpha(0),
+ fTx(0),
+ fITSchi2(0),
+ fITSncls(0),
+ fITSsignal(0),
+ fITSLabel(0),
+ fITSFakeRatio(0),
+ fITStrack(0),
+ fTPCchi2(0),
+ fTPCncls(0),
+ fTPCClusterMap(159),//number of padrows
+ fTPCsignal(0),
+ fTPCLabel(0),
+ fTRDchi2(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDsignal(0),
+ fTRDLabel(0),
+ fTRDQuality(0),
+ fTRDtrack(0),
+ fTOFchi2(0),
+ fTOFindex(0),
+ fTOFsignal(-1),
+ fPHOSsignal(-1),
+ fEMCALsignal(-1),
+ fRICHchi2(1e10),
+ fRICHncls(0),
+ fRICHindex(0),
+ fRICHsignal(-1),
+ fRICHtheta(0),
+ fRICHphi(0),
+ fRICHdx(0),
+ fRICHdy(0)
{
//
// The default ESD constructor
//
- for (Int_t i=0; i<kSPECIES; i++) {
- fTrackTime[i]=0;
- fR[i]=0;
- fITSr[i]=0;
- fTPCr[i]=0;
- fTRDr[i]=0;
- fTOFr[i]=0;
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) {
+ fTrackTime[i]=0.;
+ fR[i]=1.;
+ fITSr[i]=1.;
+ fTPCr[i]=1.;
+ fTRDr[i]=1.;
+ fTOFr[i]=1.;
+ fRICHr[i]=1.;
+ }
+
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) {
+ fPHOSr[i] = 1.;
+ fEMCALr[i] = 1.;
}
+
+
+ fPHOSpos[0]=fPHOSpos[1]=fPHOSpos[2]=0.;
+ fEMCALpos[0]=fEMCALpos[1]=fEMCALpos[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<5; i++) {
+ fRp[i]=fCp[i]=fIp[i]=fTp[i]=0.;
+ }
+ for (i=0; i<15; i++) {
+ fRc[i]=fCc[i]=fIc[i]=fTc[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; }
+ for (i=0; i<3;i++) { fKinkIndexes[i]=0;}
+ for (i=0; i<3;i++) { fV0Indexes[i]=-1;}
+ for (i=0; i<130; i++) { fTRDindex[i]=0; }
+ for (i=0;i<kNPlane;i++) {fTRDsignals[i]=0.; fTRDTimBin[i]=-1;}
+ for (Int_t i=0;i<4;i++) {fTPCPoints[i]=-1;}
+ for (Int_t i=0;i<3;i++) {fTOFLabel[i]=-1;}
+ for (Int_t i=0;i<10;i++) {fTOFInfo[i]=-1;}
+ fTPCLabel = 0;
+ fTRDLabel = 0;
+ fTRDQuality =0;
+ fITSLabel = 0;
+ fITStrack = 0;
+ fTRDtrack = 0;
+}
+
+//_______________________________________________________________________
+AliESDtrack::AliESDtrack(const AliESDtrack& track):
+ TObject(track),
+ fFlags(track.fFlags),
+ fLabel(track.fLabel),
+ fID(track.fID),
+ fTrackLength(track.fTrackLength),
+ fD(track.fD),
+ fZ(track.fZ),
+ fStopVertex(track.fStopVertex),
+ fRalpha(track.fRalpha),
+ fRx(track.fRx),
+ fCalpha(track.fCalpha),
+ fCx(track.fCx),
+ fCchi2(track.fCchi2),
+ fIalpha(track.fIalpha),
+ fIx(track.fIx),
+ fTalpha(track.fTalpha),
+ fTx(track.fTx),
+ fITSchi2(track.fITSchi2),
+ fITSncls(track.fITSncls),
+ fITSsignal(track.fITSsignal),
+ fITSLabel(track.fITSLabel),
+ fITSFakeRatio(track.fITSFakeRatio),
+ fITStrack(0), //coping separatelly - in user code
+ fTPCchi2(track.fTPCchi2),
+ fTPCncls(track.fTPCncls),
+ fTPCClusterMap(track.fTPCClusterMap),
+ fTPCsignal(track.fTPCsignal),
+ fTPCLabel(track.fTPCLabel),
+ fTRDchi2(track.fTRDchi2),
+ fTRDncls(track.fTRDncls),
+ fTRDncls0(track.fTRDncls0),
+ fTRDsignal(track.fTRDsignal),
+ fTRDLabel(track.fTRDLabel),
+ fTRDQuality(track.fTRDQuality),
+ fTRDtrack(0),
+ fTOFchi2(track.fTOFchi2),
+ fTOFindex(track.fTOFindex),
+ fTOFsignal(track.fTOFsignal),
+ fPHOSsignal(track.fPHOSsignal),
+ fEMCALsignal(track.fEMCALsignal),
+ fRICHchi2(track.fRICHchi2),
+ fRICHncls(track.fRICHncls),
+ fRICHindex(track.fRICHindex),
+ fRICHsignal(track.fRICHsignal),
+ fRICHtheta(track.fRICHtheta),
+ fRICHphi(track.fRICHphi),
+ fRICHdx(track.fRICHdx),
+ fRICHdy(track.fRICHdy)
+{
+ //
+ //copy constructor
+ //
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] =track.fTrackTime[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i] =track.fR[i];
+ //
+ for (Int_t i=0;i<5;i++) fRp[i] =track.fRp[i];
+ for (Int_t i=0;i<15;i++) fRc[i] =track.fRc[i];
+ //
+ for (Int_t i=0;i<5;i++) fCp[i] =track.fCp[i];
+ for (Int_t i=0;i<15;i++) fCc[i] =track.fCc[i];
+ //
+ for (Int_t i=0;i<5;i++) fIp[i] =track.fIp[i];
+ for (Int_t i=0;i<15;i++) fIc[i] =track.fIc[i];
+ //
+ for (Int_t i=0;i<5;i++) fTp[i] =track.fTp[i];
+ for (Int_t i=0;i<15;i++) fTc[i] =track.fTc[i];
+ //
+ for (Int_t i=0;i<12;i++) fITSchi2MIP[i] =track.fITSchi2MIP[i];
+ for (Int_t i=0;i<6;i++) fITSindex[i]=track.fITSindex[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i];
+ //
+ for (Int_t i=0;i<180;i++) fTPCindex[i]=track.fTPCindex[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i];
+ for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];}
+ for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];}
+ for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];}
+ //
+ for (Int_t i=0;i<130;i++) fTRDindex[i]=track.fTRDindex[i];
+ for (Int_t i=0;i<kNPlane;i++) {
+ fTRDsignals[i]=track.fTRDsignals[i];
+ fTRDTimBin[i]=track.fTRDTimBin[i];
+ }
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i];
+ //
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i];
+ for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i];
+ for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i];
+ //
+ for (Int_t i=0;i<3;i++) fPHOSpos[i]=track.fPHOSpos[i];
+ for (Int_t i=0;i<AliPID::kSPECIESN;i++) fPHOSr[i]=track.fPHOSr[i];
+ //
+ for (Int_t i=0;i<3;i++) fEMCALpos[i]=track.fEMCALpos[i];
+ for (Int_t i=0;i<AliPID::kSPECIESN;i++) fEMCALr[i]=track.fEMCALr[i];
+ //
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fRICHr[i]=track.fRICHr[i];
+}
+//_______________________________________________________________________
+AliESDtrack::~AliESDtrack(){
+ //
+ // This is destructor according Coding Conventrions
+ //
+ //printf("Delete track\n");
+ delete fITStrack;
+ delete fTRDtrack;
}
//_______________________________________________________________________
-Float_t AliESDtrack::GetMass() const {
+void AliESDtrack::MakeMiniESDtrack(){
+ // Resets everything except
+ // fFlags: Reconstruction status flags
+ // fLabel: Track label
+ // fID: Unique ID of the track
+ // fD: Impact parameter in XY-plane
+ // fZ: Impact parameter in Z
+ // fR[AliPID::kSPECIES]: combined "detector response probability"
+ // Running track parameters
+ // fRalpha: track rotation angle
+ // fRx: X-coordinate of the track reference plane
+ // fRp[5]: external track parameters
+ // fRc[15]: external cov. matrix of the track parameters
+
+ fTrackLength = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0;
+ fStopVertex = 0;
+
+ // Reset track parameters constrained to the primary vertex
+ fCalpha = 0;
+ fCx = 0;
+ for (Int_t i=0;i<5;i++) fCp[i] = 0;
+ for (Int_t i=0;i<15;i++) fCc[i] = 0;
+ fCchi2 = 0;
+
+ // Reset track parameters at the inner wall of TPC
+ fIalpha = 0;
+ fIx = 0;
+ for (Int_t i=0;i<5;i++) fIp[i] = 0;
+ for (Int_t i=0;i<15;i++) fIc[i] = 0;
+
+ // Reset track parameters at the inner wall of the TRD
+ fTalpha = 0;
+ fTx = 0;
+ for (Int_t i=0;i<5;i++) fTp[i] = 0;
+ for (Int_t i=0;i<15;i++) fTc[i] = 0;
+
+ // Reset ITS track related information
+ fITSchi2 = 0;
+ for (Int_t i=0;i<12;i++) fITSchi2MIP[i] = 0;
+ fITSncls = 0;
+ for (Int_t i=0;i<6;i++) fITSindex[i]= 0;
+ fITSsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]= 0;
+ fITSLabel = 0;
+ fITSFakeRatio = 0;
+ fITStrack =0;
+
+ // Reset TPC related track information
+ fTPCchi2 = 0;
+ fTPCncls = 0;
+ for (Int_t i=0;i<180;i++) fTPCindex[i] = 0;
+ fTPCClusterMap = 0;
+ fTPCsignal= 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0;
+ fTPCLabel=0;
+ for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0;
+ for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0;
+ for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0;
+
+ // Reset TRD related track information
+ fTRDchi2 = 0;
+ fTRDncls = 0;
+ fTRDncls0 = 0;
+ for (Int_t i=0;i<130;i++) fTRDindex[i] = 0;
+ fTRDsignal = 0;
+ for (Int_t i=0;i<kNPlane;i++) {
+ fTRDsignals[i] = 0;
+ fTRDTimBin[i] = 0;
+ }
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0;
+ fTRDLabel = 0;
+ fTRDtrack = 0;
+ fTRDQuality = 0;
+
+ // Reset TOF related track information
+ fTOFchi2 = 0;
+ fTOFindex = 0;
+ fTOFsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0;
+ for (Int_t i=0;i<3;i++) fTOFLabel[i] = 0;
+ for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0;
+
+ // Reset PHOS related track information
+ for (Int_t i=0;i<3;i++) fPHOSpos[i] = 0;
+ fPHOSsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIESN;i++) fPHOSr[i] = 0;
+
+ // Reset EMCAL related track information
+ for (Int_t i=0;i<3;i++) fEMCALpos[i] = 0;
+ fEMCALsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIESN;i++) fEMCALr[i] = 0;
+
+ // Reset RICH related track information
+ fRICHchi2 = 0;
+ fRICHncls = 0;
+ fRICHindex = 0;
+ fRICHsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fRICHr[i] = 0;
+ fRICHtheta = 0;
+ fRICHphi = 0;
+ fRICHdx = 0;
+ fRICHdy = 0;
+
+}
+//_______________________________________________________________________
+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++) {
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) {
if (fR[i]>max) {k=i; max=fR[i];}
}
- if (k==0) return 0.00051;
- if (k==1) return 0.10566;
- if (k==2||k==-1) return 0.13957;
- if (k==3) return 0.49368;
- if (k==4) return 0.93827;
- Warning("GetMass()","Undefined mass !");
- return 0.13957;
+ if (k==0) { // dE/dx "crossing points" in the TPC
+ Double_t p=GetP();
+ if ((p>0.38)&&(p<0.48))
+ if (fR[0]<fR[3]*10.) return AliPID::ParticleMass(AliPID::kKaon);
+ if ((p>0.75)&&(p<0.85))
+ if (fR[0]<fR[4]*10.) return AliPID::ParticleMass(AliPID::kProton);
+ return 0.00051;
+ }
+ if (k==1) return AliPID::ParticleMass(AliPID::kMuon);
+ if (k==2||k==-1) return AliPID::ParticleMass(AliPID::kPion);
+ if (k==3) return AliPID::ParticleMass(AliPID::kKaon);
+ if (k==4) return AliPID::ParticleMass(AliPID::kProton);
+ AliWarning("Undefined mass !");
+ return AliPID::ParticleMass(AliPID::kPion);
}
//_______________________________________________________________________
-Bool_t AliESDtrack::UpdateTrackParams(AliKalmanTrack *t, ULong_t flags) {
+Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags) {
//
// This function updates track's running parameters
//
+ Bool_t rc=kTRUE;
+
SetStatus(flags);
fLabel=t->GetLabel();
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 kTPCrefit:
+ fTPCLabel = t->GetLabel();
fIalpha=fRalpha;
- fIx=fRx;
+ fIx=fRx;
{
Int_t i;
for (i=0; i<5; i++) fIp[i]=fRp[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<fTPCncls;i++)
+ for (Int_t i=0;i<160;i++)
{
fTPCindex[i]=t->GetClusterIndex(i);
//
break;
- case kTRDout:
- { //requested by the PHOS ("temporary solution")
- Double_t r=474.;
- t->PropagateTo(r,30.,0.);
- fOalpha=fRalpha;
- fOx=fRx;
- Int_t i;
- for (i=0; i<5; i++) fOp[i]=fRp[i];
- for (i=0; i<15;i++) fOc[i]=fRc[i];
- }
- case kTRDin: case kTRDrefit:
+ case kTRDout: 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 kTRDbackup:
+ t->GetExternalParameters(fTx,fTp);
+ t->GetExternalCovariance(fTc);
+ fTalpha = t->GetAlpha();
+ fTRDncls0 = t->GetNumberOfClusters();
+ break;
+ case kTOFin:
+ break;
+ case kTOFout:
+ break;
+ case kTRDStop:
+ break;
default:
- Error("UpdateTrackParams()","Wrong flag !\n");
+ AliError("Wrong flag !");
return kFALSE;
}
- return kTRUE;
+ return rc;
}
//_______________________________________________________________________
void
-AliESDtrack::SetConstrainedTrackParams(AliKalmanTrack *t, Double_t chi2) {
+AliESDtrack::SetConstrainedTrackParams(const AliKalmanTrack *t, Double_t chi2) {
//
// This function sets the constrained track parameters
//
+ Int_t i;
+ Double_t x,buf[15];
fCalpha=t->GetAlpha();
- t->GetExternalParameters(fCx,fCp);
- t->GetExternalCovariance(fCc);
+ t->GetExternalParameters(x,buf); fCx=x;
+ for (i=0; i<5; i++) fCp[i]=buf[i];
+ t->GetExternalCovariance(buf);
+ for (i=0; i<15; i++) fCc[i]=buf[i];
fCchi2=chi2;
}
x=fRx;
for (Int_t i=0; i<5; i++) p[i]=fRp[i];
}
+
+//_______________________________________________________________________
+Bool_t AliESDtrack::GetExternalParametersAt(Double_t x, Double_t p[5]) const {
+ //---------------------------------------------------------------------
+ // This function returns external representation of the track parameters
+ // at the position given by the first argument
+ //---------------------------------------------------------------------
+ Double_t dx=x-fRx;
+ Double_t f1=fRp[2], f2=f1 + dx*fRp[4]/AliKalmanTrack::GetConvConst();
+
+ if (TMath::Abs(f2) >= 0.9999) return kFALSE;
+
+ Double_t r1=TMath::Sqrt(1.- f1*f1), r2=TMath::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] = f2;
+ p[3] = fRp[3];
+ p[4] = fRp[4];
+
+ return kTRUE;
+}
+
//_______________________________________________________________________
void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const {
//---------------------------------------------------------------------
Double_t AliESDtrack::GetP() const {
//---------------------------------------------------------------------
// This function returns the track momentum
+ // Results for (nearly) straight tracks are meaningless !
//---------------------------------------------------------------------
- Double_t lam=TMath::ATan(fRp[3]);
+ if (TMath::Abs(fRp[4])<=0) return 0;
Double_t pt=1./TMath::Abs(fRp[4]);
- return pt/TMath::Cos(lam);
+ return pt*TMath::Sqrt(1.+ fRp[3]*fRp[3]);
}
-void AliESDtrack::GetConstrainedPxPyPz(Double_t *p) const {
+Bool_t Local2GlobalMomentum(Double_t p[3],Double_t alpha) {
+ //----------------------------------------------------------------
+ // This function performs local->global transformation of the
+ // track momentum.
+ // When called, the arguments are:
+ // p[0] = 1/pt of the track;
+ // p[1] = sine of local azim. angle of the track momentum;
+ // p[2] = tangent of the track momentum dip angle;
+ // alpha - rotation angle.
+ // The result is returned as:
+ // p[0] = px
+ // p[1] = py
+ // p[2] = pz
+ // Results for (nearly) straight tracks are meaningless !
+ //----------------------------------------------------------------
+ if (TMath::Abs(p[0])<=0) return kFALSE;
+ if (TMath::Abs(p[1])> 0.999999) return kFALSE;
+
+ Double_t pt=1./TMath::Abs(p[0]);
+ Double_t cs=TMath::Cos(alpha), sn=TMath::Sin(alpha);
+ Double_t r=TMath::Sqrt(1 - p[1]*p[1]);
+ p[0]=pt*(r*cs - p[1]*sn); p[1]=pt*(p[1]*cs + r*sn); p[2]=pt*p[2];
+
+ return kTRUE;
+}
+
+Bool_t Local2GlobalPosition(Double_t r[3],Double_t alpha) {
+ //----------------------------------------------------------------
+ // This function performs local->global transformation of the
+ // track position.
+ // When called, the arguments are:
+ // r[0] = local x
+ // r[1] = local y
+ // r[2] = local z
+ // alpha - rotation angle.
+ // The result is returned as:
+ // r[0] = global x
+ // r[1] = global y
+ // r[2] = global z
+ //----------------------------------------------------------------
+ Double_t cs=TMath::Cos(alpha), sn=TMath::Sin(alpha), x=r[0];
+ r[0]=x*cs - r[1]*sn; r[1]=x*sn + r[1]*cs;
+
+ return kTRUE;
+}
+
+Bool_t AliESDtrack::GetConstrainedPxPyPz(Double_t *p) const {
//---------------------------------------------------------------------
// This function returns the constrained global track momentum components
+ // Results for (nearly) straight tracks are meaningless !
//---------------------------------------------------------------------
- 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 {
+ p[0]=fCp[4]; p[1]=fCp[2]; p[2]=fCp[3];
+ return Local2GlobalMomentum(p,fCalpha);
+}
+
+Bool_t AliESDtrack::GetConstrainedXYZ(Double_t *r) const {
//---------------------------------------------------------------------
- // This function returns the global track position
+ // This function returns the constrained 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];
+ r[0]=fCx; r[1]=fCp[0]; r[2]=fCp[1];
+ return Local2GlobalPosition(r,fCalpha);
}
-void AliESDtrack::GetPxPyPz(Double_t *p) const {
+Bool_t AliESDtrack::GetPxPyPz(Double_t *p) const {
//---------------------------------------------------------------------
// This function returns the global track momentum components
+ // Results for (nearly) straight tracks are meaningless !
//---------------------------------------------------------------------
- Double_t phi=TMath::ASin(fRp[2]) + fRalpha;
- 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];
+ p[0]=fRp[4]; p[1]=fRp[2]; p[2]=fRp[3];
+ return Local2GlobalMomentum(p,fRalpha);
}
-void AliESDtrack::GetXYZ(Double_t *xyz) const {
+
+Bool_t AliESDtrack::GetXYZ(Double_t *r) const {
//---------------------------------------------------------------------
// This function returns the global track position
//---------------------------------------------------------------------
- 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];
+ r[0]=fRx; r[1]=fRp[0]; r[2]=fRp[1];
+ return Local2GlobalPosition(r,fRalpha);
}
+void AliESDtrack::GetCovariance(Double_t cv[21]) const {
+ //---------------------------------------------------------------------
+ // This function returns the global covariance matrix of the track params
+ //
+ // Cov(x,x) ... : cv[0]
+ // Cov(y,x) ... : cv[1] cv[2]
+ // Cov(z,x) ... : cv[3] cv[4] cv[5]
+ // Cov(px,x)... : cv[6] cv[7] cv[8] cv[9]
+ // Cov(py,x)... : cv[10] cv[11] cv[12] cv[13] cv[14]
+ // Cov(pz,x)... : cv[15] cv[16] cv[17] cv[18] cv[19] cv[20]
+ //
+ // Results for (nearly) straight tracks are meaningless !
+ //---------------------------------------------------------------------
+ if (TMath::Abs(fRp[4])<=0) {
+ for (Int_t i=0; i<21; i++) cv[i]=0.;
+ return;
+ }
+ if (TMath::Abs(fRp[2]) > 0.999999) {
+ for (Int_t i=0; i<21; i++) cv[i]=0.;
+ return;
+ }
+ Double_t pt=1./TMath::Abs(fRp[4]);
+ Double_t cs=TMath::Cos(fRalpha), sn=TMath::Sin(fRalpha);
+ Double_t r=TMath::Sqrt(1-fRp[2]*fRp[2]);
+
+ Double_t m00=-sn, m10=cs;
+ Double_t m23=-pt*(sn + fRp[2]*cs/r), m43=-pt*pt*(r*cs - fRp[2]*sn);
+ Double_t m24= pt*(cs - fRp[2]*sn/r), m44=-pt*pt*(r*sn + fRp[2]*cs);
+ Double_t m35=pt, m45=-pt*pt*fRp[3];
-void AliESDtrack::GetInnerPxPyPz(Double_t *p) const {
+ cv[0]=fRc[0]*m00*m00;
+ cv[1]=fRc[0]*m00*m10;
+ cv[2]=fRc[0]*m10*m10;
+ cv[3]=fRc[1]*m00;
+ cv[4]=fRc[1]*m10;
+ cv[5]=fRc[2];
+ cv[6]=m00*(fRc[3]*m23+fRc[10]*m43);
+ cv[7]=m10*(fRc[3]*m23+fRc[10]*m43);
+ cv[8]=fRc[4]*m23+fRc[11]*m43;
+ cv[9]=m23*(fRc[5]*m23+fRc[12]*m43)+m43*(fRc[12]*m23+fRc[14]*m43);
+ cv[10]=m00*(fRc[3]*m24+fRc[10]*m44);
+ cv[11]=m10*(fRc[3]*m24+fRc[10]*m44);
+ cv[12]=fRc[4]*m24+fRc[11]*m44;
+ cv[13]=m23*(fRc[5]*m24+fRc[12]*m44)+m43*(fRc[12]*m24+fRc[14]*m44);
+ cv[14]=m24*(fRc[5]*m24+fRc[12]*m44)+m44*(fRc[12]*m24+fRc[14]*m44);
+ cv[15]=m00*(fRc[6]*m35+fRc[10]*m45);
+ cv[16]=m10*(fRc[6]*m35+fRc[10]*m45);
+ cv[17]=fRc[7]*m35+fRc[11]*m45;
+ cv[18]=m23*(fRc[8]*m35+fRc[12]*m45)+m43*(fRc[13]*m35+fRc[14]*m45);
+ cv[19]=m24*(fRc[8]*m35+fRc[12]*m45)+m44*(fRc[13]*m35+fRc[14]*m45);
+ cv[20]=m35*(fRc[9]*m35+fRc[13]*m45)+m45*(fRc[13]*m35+fRc[14]*m45);
+}
+
+Bool_t AliESDtrack::GetInnerPxPyPz(Double_t *p) const {
//---------------------------------------------------------------------
// This function returns the global track momentum components
// af the entrance of the TPC
//---------------------------------------------------------------------
- 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];
+ p[0]=fIp[4]; p[1]=fIp[2]; p[2]=fIp[3];
+ return Local2GlobalMomentum(p,fIalpha);
}
-void AliESDtrack::GetInnerXYZ(Double_t *xyz) const {
+Bool_t AliESDtrack::GetInnerXYZ(Double_t *r) const {
//---------------------------------------------------------------------
// This function returns the global track position
// af the entrance of the TPC
//---------------------------------------------------------------------
- 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];
+ if (fIx==0) return kFALSE;
+ r[0]=fIx; r[1]=fIp[0]; r[2]=fIp[1];
+ return Local2GlobalPosition(r,fIalpha);
}
void AliESDtrack::GetInnerExternalParameters(Double_t &x, Double_t p[5]) const
}
-void AliESDtrack::GetOuterPxPyPz(Double_t *p) const {
+void AliESDtrack::GetTRDExternalParameters(Double_t &x, Double_t&alpha, Double_t p[5], Double_t cov[15]) const
+{
+ //
+ //this function returns TRD parameters
+ //
+ x=fTx;
+ alpha = fTalpha;
+ for (Int_t i=0; i<5; i++) p[i]=fTp[i];
+ for (Int_t i=0; i<15; i++) cov[i]=fTc[i];
+}
+
+Bool_t AliESDtrack::GetPxPyPzAt(Double_t x,Double_t *p) const {
//---------------------------------------------------------------------
// This function returns the global track momentum components
- // af the radius of the PHOS
+ // at the position "x" using the helix track approximation
//---------------------------------------------------------------------
- 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];
+ p[0]=fRp[4];
+ p[1]=fRp[2]+(x-fRx)*fRp[4]/AliKalmanTrack::GetConvConst();
+ p[2]=fRp[3];
+ return Local2GlobalMomentum(p,fRalpha);
}
-void AliESDtrack::GetOuterXYZ(Double_t *xyz) const {
+Bool_t AliESDtrack::GetXYZAt(Double_t x, Double_t *r) const {
//---------------------------------------------------------------------
// This function returns the global track position
- // af the radius of the PHOS
+ // af the radius "x" using the helix track approximation
//---------------------------------------------------------------------
- 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];
+ Double_t dx=x-fRx;
+ Double_t f1=fRp[2], f2=f1 + dx*fRp[4]/AliKalmanTrack::GetConvConst();
+
+ if (TMath::Abs(f2) >= 0.9999) return kFALSE;
+
+ Double_t r1=TMath::Sqrt(1.- f1*f1), r2=TMath::Sqrt(1.- f2*f2);
+ r[0] = x;
+ r[1] = fRp[0] + dx*(f1+f2)/(r1+r2);
+ r[2] = fRp[1] + dx*(f1+f2)/(f1*r2 + f2*r1)*fRp[3];
+ return Local2GlobalPosition(r,fRalpha);
}
//_______________________________________________________________________
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];
+ for (Int_t i=0; i<AliPID::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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) fTrackTime[i]=times[i];
}
//_______________________________________________________________________
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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) fITSr[i]=p[i];
SetStatus(AliESDtrack::kITSpid);
}
+void AliESDtrack::SetITSChi2MIP(const Float_t *chi2mip){
+ for (Int_t i=0; i<12; 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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fITSr[i];
}
//_______________________________________________________________________
return fTPCncls;
}
+Float_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{
+ //
+ // GetDensity of the clusters on given region between row0 and row1
+ // Dead zone effect takin into acoount
+ //
+ Int_t good = 0;
+ Int_t found = 0;
+ //
+ for (Int_t i=row0;i<=row1;i++){
+ Int_t index = fTPCindex[i];
+ if (index!=-1) good++; // track outside of dead zone
+ if (index>0) found++;
+ }
+ Float_t density=0.5;
+ if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good);
+ return density;
+}
//_______________________________________________________________________
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];
+ // normalize probabiluty to 1
+ //
+ //
+// Double_t sump=0;
+// for (Int_t i=0; i<AliPID::kSPECIES; i++) {
+// sump+=p[i];
+// }
+// for (Int_t i=0; i<AliPID::kSPECIES; i++) {
+// if (sump>0){
+// fTPCr[i]=p[i]/sump;
+// }
+// else{
+// fTPCr[i]=p[i];
+// }
+// }
+ for (Int_t i=0; i<AliPID::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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTPCr[i];
}
//_______________________________________________________________________
// 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
+ for (Int_t i=0; i<130; 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];
+ for (Int_t i=0; i<AliPID::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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTRDr[i];
}
//_______________________________________________________________________
//_______________________________________________________________________
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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) fTOFr[i]=p[i];
SetStatus(AliESDtrack::kTOFpid);
}
+//_______________________________________________________________________
+void AliESDtrack::SetTOFLabel(const Int_t *p) {
+ // Sets (in TOF)
+ for (Int_t i=0; i<3; i++) fTOFLabel[i]=p[i];
+}
+
//_______________________________________________________________________
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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTOFr[i];
}
+//_______________________________________________________________________
+void AliESDtrack::GetTOFLabel(Int_t *p) const {
+ // Gets (in TOF)
+ for (Int_t i=0; i<3; i++) p[i]=fTOFLabel[i];
+}
+
+//_______________________________________________________________________
+void AliESDtrack::GetTOFInfo(Float_t *info) const {
+ // Gets (in TOF)
+ for (Int_t i=0; i<10; i++) info[i]=fTOFInfo[i];
+}
+
+//_______________________________________________________________________
+void AliESDtrack::SetTOFInfo(Float_t*info) {
+ // Gets (in TOF)
+ for (Int_t i=0; i<10; i++) fTOFInfo[i]=info[i];
+}
+
+
+
+//_______________________________________________________________________
+void AliESDtrack::SetPHOSpid(const Double_t *p) {
+ // Sets the probability of each particle type (in PHOS)
+ for (Int_t i=0; i<AliPID::kSPECIESN; 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<AliPID::kSPECIESN; i++) p[i]=fPHOSr[i];
+}
+
+//_______________________________________________________________________
+void AliESDtrack::SetEMCALpid(const Double_t *p) {
+ // Sets the probability of each particle type (in EMCAL)
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) fEMCALr[i]=p[i];
+ SetStatus(AliESDtrack::kEMCALpid);
+}
+
+//_______________________________________________________________________
+void AliESDtrack::GetEMCALpid(Double_t *p) const {
+ // Gets probabilities of each particle type (in EMCAL)
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i]=fEMCALr[i];
+}
+
+//_______________________________________________________________________
+void AliESDtrack::SetRICHpid(const Double_t *p) {
+ // Sets the probability of each particle type (in RICH)
+ for (Int_t i=0; i<AliPID::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<AliPID::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];
+ for (Int_t i=0; i<AliPID::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];
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i];
}
+//_______________________________________________________________________
+void AliESDtrack::Print(Option_t *) const {
+ // Prints info on the track
+
+ printf("ESD track info\n") ;
+ Double_t p[AliPID::kSPECIESN] ;
+ Int_t index = 0 ;
+ if( IsOn(kITSpid) ){
+ printf("From ITS: ") ;
+ GetITSpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetITSsignal()) ;
+ }
+ if( IsOn(kTPCpid) ){
+ printf("From TPC: ") ;
+ GetTPCpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetTPCsignal()) ;
+ }
+ if( IsOn(kTRDpid) ){
+ printf("From TRD: ") ;
+ GetTRDpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetTRDsignal()) ;
+ }
+ if( IsOn(kTOFpid) ){
+ printf("From TOF: ") ;
+ GetTOFpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetTOFsignal()) ;
+ }
+ if( IsOn(kRICHpid) ){
+ printf("From TOF: ") ;
+ GetRICHpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetRICHsignal()) ;
+ }
+ if( IsOn(kPHOSpid) ){
+ printf("From PHOS: ") ;
+ GetPHOSpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIESN; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetPHOSsignal()) ;
+ }
+ if( IsOn(kEMCALpid) ){
+ printf("From EMCAL: ") ;
+ GetEMCALpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIESN; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetEMCALsignal()) ;
+ }
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff