* 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 "TMath.h"
+#include <TMath.h>
+#include "AliESDVertex.h"
#include "AliESDtrack.h"
#include "AliKalmanTrack.h"
+#include "AliLog.h"
+#include "AliTrackPointArray.h"
ClassImp(AliESDtrack)
+void SetPIDValues(Float_t * dest, const Double_t * src, Int_t n) {
+ // This function copies "n" PID weights from "scr" to "dest"
+ // and normalizes their sum to 1 thus producing conditional probabilities.
+ // The negative weights are set to 0.
+ // In case all the weights are non-positive they are replaced by
+ // uniform probabilities
+
+ if (n<=0) return;
+
+ Float_t uniform = 1./(Float_t)n;
+
+ Float_t sum = 0;
+ for (Int_t i=0; i<n; i++)
+ if (src[i]>=0) {
+ sum+=src[i];
+ dest[i] = src[i];
+ }
+ else {
+ dest[i] = 0;
+ }
+
+ if(sum>0)
+ for (Int_t i=0; i<n; i++) dest[i] /= sum;
+ else
+ for (Int_t i=0; i<n; i++) dest[i] = uniform;
+}
+
//_______________________________________________________________________
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)
+ AliExternalTrackParam(),
+ fFlags(0),
+ fLabel(0),
+ fID(0),
+ fTrackLength(0),
+ fD(0),fZ(0),
+ fCdd(0),fCdz(0),fCzz(0),
+ fStopVertex(0),
+ fCp(0),
+ fCchi2(1e10),
+ fIp(0),
+ fOp(0),
+ fITSchi2(0),
+ fITSncls(0),
+ fITSsignal(0),
+ fITSLabel(0),
+ fITSFakeRatio(0),
+ fTPCchi2(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCClusterMap(159),//number of padrows
+ fTPCsignal(0),
+ fTPCsignalN(0),
+ fTPCsignalS(0),
+ fTPCLabel(0),
+ fTRDchi2(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDsignal(0),
+ fTRDLabel(0),
+ fTRDQuality(0),
+ fTRDBudget(0),
+ fTOFchi2(0),
+ fTOFindex(0),
+ fTOFCalChannel(-1),
+ fTOFsignal(-1),
+ fTOFsignalToT(0),
+ fRICHchi2(1e10),
+ fRICHncls(0),
+ fRICHindex(0),
+ fRICHsignal(-1),
+ fRICHtheta(-1),
+ fRICHphi(-1),
+ fRICHdx(-1),
+ fRICHdy(-1),
+ fRICHmipX(-1),
+ fRICHmipY(-1),
+ fPoints(0),
+ fFriendTrack(new AliESDfriendTrack())
{
//
// 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;
+ Int_t i, j;
+ for (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.;
}
- 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; }
+
+ for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
+ for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
+ for (i=0;i<kNPlane;i++) {
+ for (j=0;j<kNSlice;j++) {
+ fTRDsignals[i][j]=0.;
+ }
+ fTRDTimBin[i]=-1;
+ }
+ for (i=0;i<4;i++) {fTPCPoints[i]=-1;}
+ for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
+ for (i=0;i<10;i++) {fTOFInfo[i]=-1;}
}
//_______________________________________________________________________
-Float_t AliESDtrack::GetMass() const {
+AliESDtrack::AliESDtrack(const AliESDtrack& track):
+ AliExternalTrackParam(track),
+ fFlags(track.fFlags),
+ fLabel(track.fLabel),
+ fID(track.fID),
+ fTrackLength(track.fTrackLength),
+ fD(track.fD),fZ(track.fZ),
+ fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz),
+ fStopVertex(track.fStopVertex),
+ fCp(0),
+ fCchi2(track.fCchi2),
+ fIp(0),
+ fOp(0),
+ fITSchi2(track.fITSchi2),
+ fITSncls(track.fITSncls),
+ fITSsignal(track.fITSsignal),
+ fITSLabel(track.fITSLabel),
+ fITSFakeRatio(track.fITSFakeRatio),
+ fTPCchi2(track.fTPCchi2),
+ fTPCncls(track.fTPCncls),
+ fTPCnclsF(track.fTPCnclsF),
+ fTPCClusterMap(track.fTPCClusterMap),
+ fTPCsignal(track.fTPCsignal),
+ fTPCsignalN(track.fTPCsignalN),
+ fTPCsignalS(track.fTPCsignalS),
+ fTPCLabel(track.fTPCLabel),
+ fTRDchi2(track.fTRDchi2),
+ fTRDncls(track.fTRDncls),
+ fTRDncls0(track.fTRDncls0),
+ fTRDsignal(track.fTRDsignal),
+ fTRDLabel(track.fTRDLabel),
+ fTRDQuality(track.fTRDQuality),
+ fTRDBudget(track.fTRDBudget),
+ fTOFchi2(track.fTOFchi2),
+ fTOFindex(track.fTOFindex),
+ fTOFCalChannel(track.fTOFCalChannel),
+ fTOFsignal(track.fTOFsignal),
+ fTOFsignalToT(track.fTOFsignalToT),
+ fRICHchi2(track.fRICHchi2),
+ fRICHncls(track.fRICHncls),
+ fRICHindex(track.fRICHindex),
+ fRICHsignal(track.fRICHsignal),
+ fRICHtheta(track.fRICHtheta),
+ fRICHphi(track.fRICHphi),
+ fRICHdx(track.fRICHdx),
+ fRICHdy(track.fRICHdy),
+ fRICHmipX(track.fRICHmipX),
+ fRICHmipY(track.fRICHmipY),
+ fPoints(0),
+ fFriendTrack(new AliESDfriendTrack(*(track.fFriendTrack)))
+{
+ //
+ //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<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[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<kNPlane;i++) {
+ for (Int_t j=0;j<kNSlice;j++) {
+ fTRDsignals[i][j]=track.fTRDsignals[i][j];
+ }
+ 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<AliPID::kSPECIES;i++) fRICHr[i]=track.fRICHr[i];
+
+ if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp);
+ if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp);
+ if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp);
+
+ if (track.fPoints) fPoints=new AliTrackPointArray(*(track.fPoints));
+}
+
+//_______________________________________________________________________
+AliESDtrack::~AliESDtrack(){
+ //
+ // This is destructor according Coding Conventrions
+ //
+ //printf("Delete track\n");
+ delete fIp;
+ delete fOp;
+ delete fCp;
+ delete fFriendTrack;
+ delete fPoints;
+}
+
+//_______________________________________________________________________
+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
+ fCp = 0;
+ fCchi2 = 0;
+
+ // Reset track parameters at the inner wall of TPC
+ fIp = 0;
+
+ // Reset track parameters at the inner wall of the TRD
+ fOp = 0;
+
+ // Reset ITS track related information
+ fITSchi2 = 0;
+ fITSncls = 0;
+ fITSsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0;
+ fITSLabel = 0;
+ fITSFakeRatio = 0;
+
+ // Reset TPC related track information
+ fTPCchi2 = 0;
+ fTPCncls = 0;
+ fTPCnclsF = 0;
+ fTPCClusterMap = 0;
+ fTPCsignal= 0;
+ fTPCsignalS= 0;
+ fTPCsignalN= 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;
+ fTRDsignal = 0;
+ for (Int_t i=0;i<kNPlane;i++) {
+ for (Int_t j=0;j<kNSlice;j++) {
+ fTRDsignals[i][j] = 0;
+ }
+ fTRDTimBin[i] = 0;
+ }
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0;
+ fTRDLabel = 0;
+ fTRDQuality = 0;
+ fTRDBudget = 0;
+
+ // Reset TOF related track information
+ fTOFchi2 = 0;
+ fTOFindex = 0;
+ fTOFsignal = 0;
+ fTOFCalChannel = -1;
+ fTOFsignalToT = 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 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;
+
+ delete fFriendTrack; fFriendTrack = 0;
+ delete fPoints; fPoints = 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
//
+ Int_t *index=0;
+ Bool_t rc=kTRUE;
+
SetStatus(flags);
fLabel=t->GetLabel();
SetIntegratedLength(t->GetIntegratedLength());
}
- fRalpha=t->GetAlpha();
- t->GetExternalParameters(fRx,fRp);
- t->GetExternalCovariance(fRc);
-
+ Set(*t);
+
switch (flags) {
case kITSin: case kITSout: case kITSrefit:
+ index=fFriendTrack->GetITSindices();
+ for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++)
+ index[i]=t->GetClusterIndex(i);
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 kTPCrefit:
- 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];
- }
+ fTPCLabel = t->GetLabel();
+ if (!fIp) fIp=new AliExternalTrackParam(*t);
+ else fIp->Set(*t);
case kTPCout:
-
- fTPCncls=t->GetNumberOfClusters();
+ index=fFriendTrack->GetTPCindices();
+ if (flags & kTPCout){
+ if (!fOp) fOp=new AliExternalTrackParam(*t);
+ else fOp->Set(*t);
+ }
+ fTPCncls=t->GetNumberOfClusters();
fTPCchi2=t->GetChi2();
{//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<AliESDfriendTrack::kMaxTPCcluster;i++)
{
- fTPCindex[i]=t->GetClusterIndex(i);
+ index[i]=t->GetClusterIndex(i);
+ Int_t idx = index[i];
+
+ if (idx<0) continue;
// 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
}
}
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.;}
- //
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:
+ index=fFriendTrack->GetTRDindices();
+ fTRDLabel = t->GetLabel();
fTRDncls=t->GetNumberOfClusters();
fTRDchi2=t->GetChi2();
- for (Int_t i=0;i<fTRDncls;i++) fTRDindex[i]=t->GetClusterIndex(i);
+ for (Int_t i=0;i<fTRDncls;i++) index[i]=t->GetClusterIndex(i);
fTRDsignal=t->GetPIDsignal();
break;
-
+ case kTRDbackup:
+ if (!fOp) fOp=new AliExternalTrackParam(*t);
+ else fOp->Set(*t);
+ 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) {
- //
- // 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 {
//---------------------------------------------------------------------
// This function returns external representation of the track parameters
//---------------------------------------------------------------------
- x=fRx;
- for (Int_t i=0; i<5; i++) p[i]=fRp[i];
+ x=GetX();
+ for (Int_t i=0; i<5; i++) p[i]=GetParameter()[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];
+ for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i];
}
-
//_______________________________________________________________________
-void
-AliESDtrack::GetConstrainedExternalParameters(Double_t &x, Double_t p[5])const{
+Bool_t AliESDtrack::GetConstrainedExternalParameters
+ (Double_t &alpha, 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];
+ if (!fCp) return kFALSE;
+ alpha=fCp->GetAlpha();
+ x=fCp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i];
+ return kTRUE;
}
+
//_______________________________________________________________________
-void
+Bool_t
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 {
- //---------------------------------------------------------------------
- // This function returns the track momentum
- //---------------------------------------------------------------------
- Double_t lam=TMath::ATan(fRp[3]);
- Double_t pt=1./TMath::Abs(fRp[4]);
- 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];
+ if (!fCp) return kFALSE;
+ for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i];
+ return kTRUE;
}
-void AliESDtrack::GetPxPyPz(Double_t *p) const {
+Bool_t
+AliESDtrack::GetInnerExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
- // This function returns the global track momentum components
+ // This function returns external representation of the track parameters
+ // at the inner layer of TPC
//---------------------------------------------------------------------
- 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];
-}
-void AliESDtrack::GetXYZ(Double_t *xyz) 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];
+ if (!fIp) return kFALSE;
+ alpha=fIp->GetAlpha();
+ x=fIp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i];
+ return kTRUE;
}
-
-void 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];
+Bool_t
+AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const {
+ //---------------------------------------------------------------------
+ // This function returns external representation of the cov. matrix
+ // at the inner layer of TPC
+ //---------------------------------------------------------------------
+ if (!fIp) return kFALSE;
+ for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i];
+ return kTRUE;
}
-void AliESDtrack::GetInnerXYZ(Double_t *xyz) const {
+Bool_t
+AliESDtrack::GetOuterExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
- // This function returns the global track position
- // af the entrance of the TPC
+ // This function returns external representation of the track parameters
+ // at the inner layer of TRD
//---------------------------------------------------------------------
- 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 (!fOp) return kFALSE;
+ alpha=fOp->GetAlpha();
+ x=fOp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i];
+ return kTRUE;
}
-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
+Bool_t
+AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const {
//---------------------------------------------------------------------
- // This function returns external representation of the cov. matrix at Inner Layer of TPC
+ // This function returns external representation of the cov. matrix
+ // at the inner layer of TRD
//---------------------------------------------------------------------
- for (Int_t i=0; i<15; i++) cov[i]=fIc[i];
-
+ if (!fOp) return kFALSE;
+ for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i];
+ return kTRUE;
}
-void AliESDtrack::GetOuterPxPyPz(Double_t *p) const {
- //---------------------------------------------------------------------
- // This function returns the global track momentum components
- // af the radius of the PHOS
- //---------------------------------------------------------------------
- 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];
+Int_t AliESDtrack::GetNcls(Int_t idet) const
+{
+ // Get number of clusters by subdetector index
+ //
+ Int_t ncls = 0;
+ switch(idet){
+ case 0:
+ ncls = fITSncls;
+ break;
+ case 1:
+ ncls = fTPCncls;
+ break;
+ case 2:
+ ncls = fTRDncls;
+ break;
+ case 3:
+ if (fTOFindex != 0)
+ ncls = 1;
+ break;
+ default:
+ break;
+ }
+ return ncls;
}
-void AliESDtrack::GetOuterXYZ(Double_t *xyz) const {
- //---------------------------------------------------------------------
- // This function returns the global track position
- // af the radius of the PHOS
- //---------------------------------------------------------------------
- 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];
+Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const
+{
+ // Get cluster index array by subdetector index
+ //
+ Int_t ncls = 0;
+ switch(idet){
+ case 0:
+ ncls = GetITSclusters(idx);
+ break;
+ case 1:
+ ncls = GetTPCclusters(idx);
+ break;
+ case 2:
+ ncls = GetTRDclusters(idx);
+ break;
+ case 3:
+ if (fTOFindex != 0) {
+ idx[0] = GetTOFcluster();
+ ncls = 1;
+ }
+ break;
+ default:
+ break;
+ }
+ return ncls;
}
//_______________________________________________________________________
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];
+ SetPIDValues(fITSr,p,AliPID::kSPECIES);
SetStatus(AliESDtrack::kITSpid);
}
//_______________________________________________________________________
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];
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetITSclusters(UInt_t *idx) const {
+Int_t AliESDtrack::GetITSclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
- for (Int_t i=0; i<fITSncls; i++) idx[i]=fITSindex[i];
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetITSindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) idx[i]=index[i];
+ }
return fITSncls;
}
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
- for (Int_t i=0; i<180; i++) idx[i]=fTPCindex[i]; // MI I prefer some constant
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetTPCindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[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;
+ //
+ Int_t *index=fFriendTrack->GetTPCindices();
+ for (Int_t i=row0;i<=row1;i++){
+ Int_t idx = index[i];
+ if (idx!=-1) good++; // track outside of dead zone
+ if (idx>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];
+ SetPIDValues(fTPCr,p,AliPID::kSPECIES);
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];
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetTRDclusters(UInt_t *idx) const {
+Int_t AliESDtrack::GetTRDclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined TRD clusters
//---------------------------------------------------------------------
- for (Int_t i=0; i<90; i++) idx[i]=fTRDindex[i]; // MI I prefer some constant
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetTRDindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i];
+ }
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];
+ SetPIDValues(fTRDr,p,AliPID::kSPECIES);
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];
+ SetPIDValues(fTOFr,p,AliPID::kSPECIES);
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::SetRICHpid(const Double_t *p) {
+ // Sets the probability of each particle type (in RICH)
+ SetPIDValues(fRICHr,p,AliPID::kSPECIES);
+ 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];
+ SetPIDValues(fR,p,AliPID::kSPECIES);
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];
+}
+
+//_______________________________________________________________________
+Bool_t AliESDtrack::RelateToVertex
+(const AliESDVertex *vtx, Double_t b, Double_t maxd) {
+ //
+ // Try to relate this track to the vertex "vtx",
+ // if the (rough) transverse impact parameter is not bigger then "maxd".
+ // Magnetic field is "b" (kG).
+ //
+ // a) The track gets extapolated to the DCA to the vertex.
+ // b) The impact parameters and their covariance matrix are calculated.
+ // c) An attempt to constrain this track to the vertex is done.
+ //
+ // In the case of success, the returned value is kTRUE
+ // (otherwise, it's kFALSE)
+ //
+ Double_t alpha=GetAlpha();
+ Double_t sn=TMath::Sin(alpha), cs=TMath::Cos(alpha);
+ Double_t x=GetX(), y=GetParameter()[0], snp=GetParameter()[2];
+ Double_t xv= vtx->GetXv()*cs + vtx->GetYv()*sn;
+ Double_t yv=-vtx->GetXv()*sn + vtx->GetYv()*cs, zv=vtx->GetZv();
+ x-=xv; y-=yv;
+
+ //Estimate the impact parameter neglecting the track curvature
+ Double_t d=TMath::Abs(x*snp - y*TMath::Sqrt(1.- snp*snp));
+ if (d > maxd) return kFALSE;
+
+ //Propagate to the DCA
+ Double_t crv=kB2C*b*GetParameter()[4];
+ if (TMath::Abs(b) < kAlmost0Field) crv=0.;
+
+ Double_t tgfv=-(crv*x - snp)/(crv*y + TMath::Sqrt(1.-snp*snp));
+ sn=tgfv/TMath::Sqrt(1.+ tgfv*tgfv);
+ if (TMath::Abs(tgfv)>0.) cs = sn/tgfv;
+ else cs=1.;
+
+ x = xv*cs + yv*sn;
+ yv=-xv*sn + yv*cs; xv=x;
+
+ if (!Propagate(alpha+TMath::ASin(sn),xv,b)) return kFALSE;
+
+ fD = GetParameter()[0] - yv;
+ fZ = GetParameter()[1] - zv;
+
+ Double_t cov[6]; vtx->GetCovMatrix(cov);
+ fCdd = GetCovariance()[0] + cov[2]; // neglecting non-diagonals
+ fCdz = GetCovariance()[1]; // in the vertex's
+ fCzz = GetCovariance()[2] + cov[5]; // covariance matrix
+
+ {//Try to constrain
+ Double_t p[2]={yv,zv}, c[3]={cov[2],0.,cov[5]};
+ Double_t chi2=GetPredictedChi2(p,c);
+
+ if (chi2>77.) return kFALSE;
+
+ AliExternalTrackParam tmp(*this);
+ if (!tmp.Update(p,c)) return kFALSE;
+
+ fCchi2=chi2;
+ if (!fCp) fCp=new AliExternalTrackParam();
+ new (fCp) AliExternalTrackParam(tmp);
+ }
+
+ return kTRUE;
}
+void AliESDtrack::SetTrackPointArray(AliTrackPointArray *points) {
+ fPoints=points;
+ //fFriendTrack->SetTrackPointArray(points);
+}
+const AliTrackPointArray *AliESDtrack::GetTrackPointArray() const {
+ return fPoints;
+ //return fFriendTrack->GetTrackPointArray();
+}
+
+//_______________________________________________________________________
+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 RICH: ") ;
+ GetRICHpid(p) ;
+ for(index = 0 ; index < AliPID::kSPECIES; index++)
+ printf("%f, ", p[index]) ;
+ printf("\n signal = %f\n", GetRICHsignal()) ;
+ }
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff