// - PCA: Principal Components Analysis..
// The identified particle has an identification number corresponding
// to a 9 bits number:
-// -Bit 0 to 2: bit set if RCPV > fCpvEmcDistance (each bit corresponds
+// -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds
// to a different efficiency-purity point of the photon identification)
-// -Bit 3 to 5: bit set if TOF < fTimeGate (each bit corresponds
+// -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds
// to a different efficiency-purity point of the photon identification)
// -Bit 6 to 9: bit set if Principal Components are
// inside an ellipse defined by the parameters a, b, c, x0 and y0.
// photon identification)
// The PCA (Principal components analysis) needs a file that contains
// a previous analysis of the correlations between the particles. This
-// file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis don for
+// file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for
// energies between 0.5 and 100 GeV.
// A calibrated energy is calculated. The energy of the reconstructed
// cluster is corrected with the formula A + B * E + C * E^2, whose
-// parameters where obtained thourgh the study of the reconstructed
+// parameters where obtained through the study of the reconstructed
// energy distribution of monoenergetic photons.
//
-// All the parameters (RCPV(6 rows-3 columns),TOF(6r-3c),PCA(5r-4c)
+// All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c)
// and calibration(1r-3c))are stored in a file called
// $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is
-// initialized, this parameters are copied to a Matrix (18,4), a
+// initialized, this parameters are copied to a Matrix (9,4), a
// TMatrixD object.
//
// use case:
// The way of using the PCA has changed. Instead of 2
// files with the PCA, each one with different energy ranges
// of application, we use the wide one (0.5-100 GeV), and instead
-// of fixing 3 elipses for different ranges of energy, it has been
+// of fixing 3 ellipses for different ranges of energy, it has been
// studied the dependency of the ellipses parameters with the
// energy, and they are implemented in the code as a funtion
// of the energy.
// --- Standard library ---
#include <Riostream.h>
-#include <fstream>
-#include <iomanip>
// --- AliRoot header files ---
// dtor
// fDefaultInit = kTRUE if PID created by default ctor (to get just the parameters)
- delete [] fX ; // Principal input
- delete [] fP ; // Principal components
-// delete fParameters ; // Matrix of Parameters
-
-
+ delete [] fX ; // Principal input
+ delete [] fP ; // Principal components
+ delete [] fPPi0 ; // Pi0 Principal components
if (!fDefaultInit) {
// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
// gime->SetRecParticlesTitle(BranchName()) ;
if ( gime == 0 ) {
- cerr << "ERROR: AliPHOSPIDv1::Init -> Could not obtain the Getter object !" << endl ;
+ Error("Init", "Could not obtain the Getter object !" ) ;
return ;
}
pidName.Append(":") ;
pidName.Append(Version()) ;
SetName(pidName) ;
+ fPi0Analysis = kFALSE ;
SetParameters() ; // fill the parameters matrix from parameters file
}
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur) const
+const Float_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t e, const TString Axis) const
{
- // Get CpvtoEmcDistanceCut parameter depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- Int_t cluster = GetClusterOption(Cluster_En) ;
- if((cluster!= -1)&&(eff_pur != -1))
- return (*fParameters)(cluster,eff_pur) ;
+ // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
+ // Purity-Efficiency point
+
+ Int_t i = -1;
+ if (Axis.Contains("X")) i = 1;
+ else if (Axis.Contains("Z")) i = 2;
else
- return 0.0;
+ Error("GetCpvtoEmcDistanceCut"," Invalid axis option ");
+
+ Float_t a = (*fParameters)(i,0) ;
+ Float_t b = (*fParameters)(i,1) ;
+ Float_t c = (*fParameters)(i,2) ;
+
+ Float_t sig = a + TMath::Exp(b-c*e);
+ return sig;
}
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) const
+const Double_t AliPHOSPIDv1::GetTimeGate(const Int_t Eff_Pur) const
{
- // Get TimeGate parameter depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
+ // Get TimeGate parameter depending on Purity-Efficiency point
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- Int_t cluster = GetClusterOption(Cluster_En) ;
- if((cluster!= -1)&&(eff_pur != -1))
- return (*fParameters)(cluster+6,eff_pur) ;
- else
- return 0.0;
+ if(Eff_Pur>2 || Eff_Pur<0)
+ Error("GetTimeGate","Invalid Efficiency-Purity choice %d",Eff_Pur);
+ return (*fParameters)(3,Eff_Pur) ;
}
//_____________________________________________________________________________
}
return 100000000 ;
}
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t EffPur, const Float_t e) const
+{
+ if(EffPur>2 || EffPur<0)
+ Error("GetCPVBit","Invalid Efficiency-Purity choice %d",EffPur);
+
+ Float_t sigX = GetCpvtoEmcDistanceCut(e,"X");
+ Float_t sigZ = GetCpvtoEmcDistanceCut(e,"Z");
+
+ Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
+ Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
+
+ if((deltaX>sigX*(EffPur+1))|(deltaZ>sigZ*(EffPur+1)))
+ return 1;//Neutral
+ else
+ return 0;//Charged
+
+}
//____________________________________________________________________________
const Double_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
Double_t p[]={0.,0.,0.};
Int_t i;
- for(i=0;i<3;i++) p[i]= (*fParameters)(17,i);
+ for(i=0;i<3;i++) p[i]= (*fParameters)(0,i);
Double_t enerec = p[0] + p[1]* e+ p[2] * e * e;
return enerec ;
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetPrincipalSign(const Double_t* P,const Int_t eff_pur, const Float_t E)const
+const Int_t AliPHOSPIDv1::GetPrincipalBit(const Double_t* P,const Int_t eff_pur, const Float_t E)const
{
//Is the particle inside de PCA ellipse?
- Int_t prinsign= 0 ;
+ Int_t prinbit = 0 ;
Double_t A = GetEllipseParameter("a", E);
Double_t B = GetEllipseParameter("b", E);
Double_t C = GetEllipseParameter("c", E);
TMath::Power((P[1] - Y_center)/B,2) +
C*(P[0] - X_center)*(P[1] - Y_center)/(A*B) ;
//3 different ellipses defined
- if((eff_pur==2)&&(R <1./2.)) prinsign= 1;
- if((eff_pur==1)&&(R <2. )) prinsign= 1;
- if((eff_pur==0)&&(R <9./2.)) prinsign= 1;
+ if((eff_pur==2)&&(R <1./2.)) prinbit= 1;
+ if((eff_pur==1)&&(R <2. )) prinbit= 1;
+ if((eff_pur==0)&&(R <9./2.)) prinbit= 1;
- if(R<0)cout<<"Error: Negative square?"<<endl;
- return prinsign;
+ if(R<0)
+ Error("GetPrincipalBit", "Negative square? R=%f \n",R) ;
-}
+ return prinbit;
-//_____________________________________________________________________________
-void AliPHOSPIDv1::SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut)
+}
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetPrincipalPi0Bit(const Double_t* P,const Int_t eff_pur, const Float_t E)const
{
+ //Is the particle inside de Pi0 PCA ellipse?
- // Set the parameter Cpvto EmcDistanceCut depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
+ Int_t prinbit = 0 ;
+ Double_t A = GetEllipseParameterPi0("a", E);
+ Double_t B = GetEllipseParameterPi0("b", E);
+ Double_t C = GetEllipseParameterPi0("c", E);
+ Double_t X_center = GetEllipseParameterPi0("x0", E);
+ Double_t Y_center = GetEllipseParameterPi0("y0", E);
+
+ Double_t R = TMath::Power((P[0] - X_center)/A,2) +
+ TMath::Power((P[1] - Y_center)/B,2) +
+ C*(P[0] - X_center)*(P[1] - Y_center)/(A*B) ;
+ //3 different ellipses defined
+ if((eff_pur==2)&&(R <1./2.)) prinbit= 1;
+ if((eff_pur==1)&&(R <2. )) prinbit= 1;
+ if((eff_pur==0)&&(R <9./2.)) prinbit= 1;
+
+ if(R<0)
+ Error("GetPrincipalPi0Bit", "Negative square?") ;
+ return prinbit;
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- Int_t cluster = GetClusterOption(Cluster_En) ;
- if((cluster!= -1)&&(eff_pur != -1))
- (*fParameters)(cluster,eff_pur) = cut ;
}
//_____________________________________________________________________________
-void AliPHOSPIDv1::SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate)
+void AliPHOSPIDv1::SetCpvtoEmcDistanceCutParameters(Float_t e, Int_t Eff_Pur, TString Axis,Float_t cut)
{
+ // Set the parameters to calculate Cpvto EmcDistanceCut depending on the cluster energy and
+ // Purity-Efficiency point
+
+ if(Eff_Pur>2 || Eff_Pur<0)
+ Error("SetCpvtoEmcDistanceCutParameters","Invalid Efficiency-Purity choice %d",Eff_Pur);
+ Int_t i = -1;
+ if (Axis.Contains("X")) i = 1;
+ else if(Axis.Contains("Z")) i = 2;
+ else
+ Error("SetCpvtoEmcDistanceCutParameters"," Invalid axis option");
+
+ (*fParameters)(i,Eff_Pur) = cut ;
+}
+//_____________________________________________________________________________
+void AliPHOSPIDv1::SetTimeGate(Int_t Eff_Pur, Float_t gate)
+{
// Set the parameter TimeGate depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- Int_t cluster = GetClusterOption(Cluster_En) ;
- if((cluster!= -1)&&(eff_pur != -1))
- (*fParameters)(cluster+6,eff_pur) = gate ;
+ // Purity-Efficiency point
+ if(Eff_Pur>2 || Eff_Pur<0)
+ Error("SetTimeGate","Invalid Efficiency-Purity choice %d",Eff_Pur);
+
+ (*fParameters)(3,Eff_Pur)= gate ;
}
//_____________________________________________________________________________
void AliPHOSPIDv1::SetParameters()
// the Principal file, which is opened here
fX = new double[7]; // Data for the PCA
fP = new double[7]; // Eigenvalues of the PCA
+ fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA
+
+ // Read photon principals from the photon file
- // Open principal and parameters files to be used
-
- fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
- fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
+ fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
TFile f( fFileName.Data(), "read" ) ;
fPrincipal = dynamic_cast<TPrincipal*> (f.Get("principal")) ;
f.Close() ;
-
- // Initialization of the Parameters matrix. In the File Parameters.dat
- // are all the parameters. These are introduced in a matrix of 18x4
+
+ // Read pi0 principals from the pi0 file
+
+ fFileNamePi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ;
+ TFile fPi0( fFileNamePi0.Data(), "read" ) ;
+ fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ;
+ fPi0.Close() ;
+
+ // Open parameters file and initialization of the Parameters matrix.
+ // In the File Parameters.dat are all the parameters. These are introduced
+ // in a matrix of 9x4
//
// All the parameters defined in this file are, in order of row:
- // CpvtoEmcDistanceCut (6 rows, each one depends on the energy range of the
- // particle, and 3 columns, each one depending on the efficiency-purity
- // point), TimeGate (the same) and the parameters of the functions that
+ // -CpvtoEmcDistanceCut (2 row (x and z) and 3 columns, each one depending
+ // on the parameter of the funtion that sets the cut in x or z.
+ // -TimeGate, 1 row and 3 columns (3 efficiency-purty cuts)
+ // -PCA, parameters of the functions that
// calculate the ellipse parameters, x0,y0,a, b, c. These 5 parameters
- // (5 rows) depend on 4 parameters (columns). Finally there is a row with
- // the energy calibration parameters, 3 parameters.
-
- fParameters = new TMatrixD(18,4) ;
-
- ifstream paramFile(fFileNamePar) ;
- Int_t h,n;
- for(h = 0; h< 18; h++){
- for(n = 0; n< 4; n++){
- paramFile >> (*fParameters)(h,n) ;
- }
+ // (5 rows) depend on 4 parameters (columns).
+ // -Finally there is a row with the energy calibration parameters,
+ // 3 parameters.
+
+ fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.YVK.dat");
+ fParameters = new TMatrixD(14,4) ;
+ const Int_t maxLeng=255;
+ char string[maxLeng];
+
+ // Open a text file with PID parameters
+ FILE *fd = fopen(fFileNamePar.Data(),"r");
+ if (!fd)
+ Fatal("SetParameter","File %s with a PID parameters cannot be opened\n",
+ fFileNamePar.Data());
+
+ Int_t i=0;
+ // Read parameter file line-by-line and skip empty line and comments
+ while (fgets(string,maxLeng,fd) != NULL) {
+ if (string[0] == '\n' ) continue;
+ if (string[0] == '!' ) continue;
+ sscanf(string, "%lf %lf %lf %lf",
+ &(*fParameters)(i,0), &(*fParameters)(i,1),
+ &(*fParameters)(i,2), &(*fParameters)(i,3));
+ i++;
}
- paramFile.close();
+ fclose(fd);
}
-//_____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetClusterOption(const Float_t Cluster_En) const
-{
- // Gives the cluster energy range, for each range there is associated a TOF or RCPV
- // parameter.
- Int_t cluster = -1;
- if((Cluster_En > 0.0 )&&(Cluster_En <= 2.0 )) cluster = 0 ;
- if((Cluster_En > 2.0 )&&(Cluster_En <= 5.0 )) cluster = 1 ;
- if((Cluster_En > 5.0 )&&(Cluster_En <= 10.0)) cluster = 2 ;
- if((Cluster_En > 10.0)&&(Cluster_En <= 20.0)) cluster = 3 ;
- if((Cluster_En > 20.0)&&(Cluster_En <= 30.0)) cluster = 4 ;
- if( Cluster_En > 30.0) cluster = 5 ;
-
- return cluster;
-}
-//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetEffPurOption(const TString Eff_Pur) const
-{
-
- // Looks for the Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
- Int_t eff_pur = -1 ;
-
- if(Eff_Pur.Contains("HIGH EFFICIENCY") ||Eff_Pur.Contains("LOW PURITY") )
- eff_pur = 0 ;
- else if(Eff_Pur.Contains("MEDIUM EFFICIENCY") ||Eff_Pur.Contains("MEDIUM PURITY") )
- eff_pur = 1 ;
- else if(Eff_Pur.Contains("LOW EFFICIENCY")||Eff_Pur.Contains("HIGH PURITY") )
- eff_pur = 2 ;
- else{
- eff_pur = -1;
- cout<<"Invalid Efficiency-Purity option"<<endl;
- cout<<"Possible options: HIGH EFFICIENCY = LOW PURITY"<<endl;
- cout<<" MEDIUM EFFICIENCY = MEDIUM PURITY"<<endl;
- cout<<" LOW EFFICIENCY = HIGH PURITY"<<endl;
- }
- return eff_pur;
-}
//________________________________________________________________________
void AliPHOSPIDv1::SetEllipseParameter(TString Param, Int_t i, Double_t par)
{
// Set the parameter "i" that is needed to calculate the ellipse
// parameter "Param".
-
- Int_t p= -1;
- if(Param.Contains("a"))p=12;
- if(Param.Contains("b"))p=13;
- if(Param.Contains("c"))p=14;
- if(Param.Contains("x0"))p=15;
- if(Param.Contains("y0"))p=16;
+ Int_t p= -1;
+ if (Param.Contains("a")) p=4;
+ else if(Param.Contains("b")) p=5;
+ else if(Param.Contains("c")) p=6;
+ else if(Param.Contains("x0"))p=7;
+ else if(Param.Contains("y0"))p=8;
+ if((i>4)||(i<0))
+ Error("SetEllipseParameter", "No parameter with index %d", i) ;
+ else if(p==-1)
+ Error("SetEllipseParameter", "No parameter with name %s", Param.Data() ) ;
+ else
+ (*fParameters)(p,i) = par ;
+}
+//________________________________________________________________________
+void AliPHOSPIDv1::SetEllipseParameterPi0(TString Param, Int_t i, Double_t par)
+{
+ // Set the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+ if(!fPi0Analysis) Error("SetPi0EllipseParameter", "Pi 0 Analysis is off") ;
+ Int_t p= -1;
+ if (Param.Contains("a")) p=9;
+ else if(Param.Contains("b")) p=10;
+ else if(Param.Contains("c")) p=11;
+ else if(Param.Contains("x0"))p=12;
+ else if(Param.Contains("y0"))p=13;
if((i>4)||(i<0))
- cout<<"Error:: No parameter with index "<<i<<endl;
+ Error("SetPi0EllipseParameter", "No parameter with index %d", i) ;
else if(p==-1)
- cout<<"Error:: No parameter with name "<<Param<<endl;
+ Error("SetPi0EllipseParameter", "No parameter with name %s", Param.Data() ) ;
else
(*fParameters)(p,i) = par ;
}
Int_t p= -1;
Double_t par = -1;
- if(Param.Contains("a"))p=12;
- if(Param.Contains("b"))p=13;
- if(Param.Contains("c"))p=14;
- if(Param.Contains("x0"))p=15;
- if(Param.Contains("y0"))p=16;
+ if (Param.Contains("a")) p=4;
+ else if(Param.Contains("b")) p=5;
+ else if(Param.Contains("c")) p=6;
+ else if(Param.Contains("x0"))p=7;
+ else if(Param.Contains("y0"))p=8;
+
+ if((i>4)||(i<0))
+ Error("GetParameterToCalculateEllipse", "No parameter with index", i) ;
+ else if(p==-1)
+ Error("GetParameterToCalculateEllipse", "No parameter with name %s", Param.Data() ) ;
+ else
+ par = (*fParameters)(p,i) ;
+
+ return par;
+
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetParameterToCalculatePi0Ellipse(const TString Param, const Int_t i) const
+{
+ // Get the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ if(!fPi0Analysis) Error("GetParameterToCalculatePi0Ellipse", "Pi 0 Analysis is off") ;
+
+ Int_t p= -1;
+ Double_t par = -1;
+
+ if(Param.Contains("a")) p=9;
+ if(Param.Contains("b")) p=10;
+ if(Param.Contains("c")) p=11;
+ if(Param.Contains("x0"))p=12;
+ if(Param.Contains("y0"))p=13;
if((i>4)||(i<0))
- cout<<"Error:: No parameter with index "<<i<<endl;
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with index", i) ;
else if(p==-1)
- cout<<"Error:: No parameter with name "<<Param<<endl;
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with name %s", Param.Data() ) ;
else
par = (*fParameters)(p,i) ;
//____________________________________________________________________________
void AliPHOSPIDv1::SetCalibrationParameter(Int_t i,Double_t param)
{
- (*fParameters)(17,i) = param ;
+ (*fParameters)(0,i) = param ;
}
//____________________________________________________________________________
const Double_t AliPHOSPIDv1::GetCalibrationParameter(const Int_t i) const
{
- Float_t param = (*fParameters)(17,i);
+ Float_t param = (*fParameters)(0,i);
return param;
}
//____________________________________________________________________________
-const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
-{
- Double_t p[4]={0.,0.,0.,0.};
- Double_t value = 0.0;
- Int_t i;
+// const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+// {
+// // Calculates the parameter Param of the ellipse
+
+// Double_t p[4]={0.,0.,0.,0.};
+// Double_t value = 0.0;
+// Int_t i;
- if(Param.Contains("a")){
- for(i=0;i<4;i++)p[i]=(*fParameters)(12,i);
- if(E>70.)E=70.;
- }
+// if(Param.Contains("a")){
+// for(i=0;i<4;i++)p[i]=(*fParameters)(4,i);
+// if(E>70.)E=70.;
+// }
- if(Param.Contains("b")){
- for(i=0;i<4;i++)p[i]=(*fParameters)(13,i);
- if(E>70.)E=70.;
- }
+// else if(Param.Contains("b")){
+// for(i=0;i<4;i++)p[i]=(*fParameters)(5,i);
+// if(E>70.)E=70.;
+// }
- if(Param.Contains("c"))
- for(i=0;i<4;i++)p[i]=(*fParameters)(14,i);
+// else if(Param.Contains("c"))
+// for(i=0;i<4;i++)p[i]=(*fParameters)(6,i);
- if(Param.Contains("x0")){
- for(i=0;i<4;i++)p[i]=(*fParameters)(15,i);
- if(E<1.)E=1.1;
- }
- if(Param.Contains("y0"))
- for(i=0;i<4;i++)p[i]=(*fParameters)(16,i);
+// else if(Param.Contains("x0")){
+// for(i=0;i<4;i++)p[i]=(*fParameters)(7,i);
+// if(E<1.)E=1.1;
+// }
+// else if(Param.Contains("y0"))
+// for(i=0;i<4;i++)p[i]=(*fParameters)(8,i);
- value = p[0]/TMath::Sqrt(E)+p[1]*E+p[2]*E*E+p[3];
+// value = p[0]/TMath::Sqrt(E)+p[1]*E+p[2]*E*E+p[3];
+// return value;
+// }
+
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+{
+ // Calculates the parameter Param of the pi0 ellipse
+
+ Double_t p[3] = {0.,0.,0.};
+ Double_t value = 0.0;
+ Int_t i;
+
+ if(Param.Contains("a"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(4,i);
+ else if(Param.Contains("b"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(5,i);
+ else if(Param.Contains("c"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(6,i);
+ else if(Param.Contains("x0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(7,i);
+ else if(Param.Contains("y0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(8,i);
+
+ value = p[0] + p[1]*E + p[2]*E*E;
+ return value;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameterPi0(const TString Param,Float_t E) const
+{
+ // Calculates the parameter Param of the pi0 ellipse
+
+ Double_t p[3] = {0.,0.,0.};
+ Double_t value = 0.0;
+ Int_t i;
+
+ if(Param.Contains("a"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(9,i);
+ else if(Param.Contains("b"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(10,i);
+ else if(Param.Contains("c"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(11,i);
+ else if(Param.Contains("x0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(12,i);
+ else if(Param.Contains("y0"))
+ for(i=0;i<3;i++)p[i]=(*fParameters)(13,i);
+
+ value = p[0] + p[1]*E + p[2]*E*E;
return value;
}
//____________________________________________________________________________
}
-// gAlice->GetEvent(0) ;
-
-// //check, if the branch with name of this" already exits?
-// if (gAlice->TreeR()) {
-// TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ;
-// TIter next(lob) ;
-// TBranch * branch = 0 ;
-// Bool_t phospidfound = kFALSE, pidfound = kFALSE ;
-
-// TString taskName(GetName()) ;
-// taskName.Remove(taskName.Index(Version())-1) ;
-
-// while ( (branch = (TBranch*)next()) && (!phospidfound || !pidfound) ) {
-// if ( (strcmp(branch->GetName(), "PHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) )
-// phospidfound = kTRUE ;
-
-// else if ( (strcmp(branch->GetName(), "AliPHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) )
-// pidfound = kTRUE ;
-// }
-
-// if ( phospidfound || pidfound ) {
-// cerr << "WARNING: AliPHOSPIDv1::Exec -> RecParticles and/or PIDtMaker branch with name "
-// << taskName.Data() << " already exits" << endl ;
-// return ;
-// }
-// }
-
-// Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
-// Int_t ievent ;
-// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
-
AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
if(gime->BranchExists("RecParticles") )
return ;
- Int_t nevents = gime->MaxEvent() ; //(Int_t) gAlice->TreeE()->GetEntries() ;
+ Int_t nevents = gime->MaxEvent() ;
Int_t ievent ;
-
for(ievent = 0; ievent < nevents; ievent++){
gime->Event(ievent,"R") ;
- MakeRecParticles() ;
-
- WriteRecParticles(ievent);
-
- if(strstr(option,"deb"))
- PrintRecParticles(option) ;
-
- //increment the total number of rec particles per run
- fRecParticlesInRun += gime->RecParticles(BranchName())->GetEntriesFast() ;
-
+ if(gime->TrackSegments() && //Skip events, where no track segments made
+ gime->TrackSegments()->GetEntriesFast()) {
+ MakeRecParticles() ;
+ WriteRecParticles(ievent);
+ if(strstr(option,"deb"))
+ PrintRecParticles(option) ;
+ //increment the total number of rec particles per run
+ fRecParticlesInRun+=gime->RecParticles(BranchName())->GetEntriesFast() ;
+ }
}
if(strstr(option,"tim")){
gBenchmark->Stop("PHOSPID");
- cout << "AliPHOSPID:" << endl ;
- cout << " took " << gBenchmark->GetCpuTime("PHOSPID") << " seconds for PID "
- << gBenchmark->GetCpuTime("PHOSPID")/nevents << " seconds per event " << endl ;
- cout << endl ;
- }
-
+ Info("Exec", "took %f seconds for PID %f seconds per event",
+ gBenchmark->GetCpuTime("PHOSPID"),
+ gBenchmark->GetCpuTime("PHOSPID")/nevents) ;
+ }
}
//____________________________________________________________________________
TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
TClonesArray * trackSegments = gime->TrackSegments() ;
if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
- cerr << "ERROR: AliPHOSPIDv1::MakeRecParticles -> RecPoints or TrackSegments not found ! " << endl ;
- abort() ;
+ Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ;
}
TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Clear();
-
TIter next(trackSegments) ;
AliPHOSTrackSegment * ts ;
// Choose the cluster energy range
- // YK: check if (emc != 0) !!!
if (!emc) {
- cerr << "ERROR: AliPHOSPIDv1::MakeRecParticles -> emc("
- <<ts->GetEmcIndex()<<") = " <<emc<< endl;
- abort();
+ Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ;
}
- Float_t e = emc->GetEnergy() ;
- Int_t cluster = GetClusterOption(e) ;// Gives value to cluster that defines the energy range parameter to be used in de RCPV, TOF and used in the PCA.
- if(cluster== -1) continue ;
+ Float_t e = emc->GetEnergy() ;
+
Float_t lambda[2] ;
emc->GetElipsAxis(lambda) ;
if((lambda[0]>0.01) && (lambda[1]>0.01)){
// Looking PCA. Define and calculate the data (X),
- // introduce in the function
- // X2P that gives the components (P).
+ // introduce in the function X2P that gives the components (P).
+
Float_t Spher = 0. ;
Float_t Emaxdtotal = 0. ;
- if((lambda[0]+lambda[1])!=0) Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
+ if((lambda[0]+lambda[1])!=0)
+ Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
Emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy();
fX[6] = emc->GetCoreEnergy() ;
fPrincipal->X2P(fX,fP);
+ if(fPi0Analysis)
+ fPrincipalPi0->X2P(fX,fPPi0);
+
}
else{
fP[0]=-100.0; //We do not accept clusters with
fP[1]=-100.0; //one cell as a photon-like
+ if(fPi0Analysis){
+ fPPi0[0]=-100.0;
+ fPPi0[1]=-100.0;
+ }
}
Float_t time =emc->GetTime() ;
- // Loop of Efficiency-Purity (the 3 points of purity or efficiency are taken
- // into account to set the particle identification)
+ // Loop of Efficiency-Purity (the 3 points of purity or efficiency
+ // are taken into account to set the particle identification)
for(Int_t eff_pur = 0; eff_pur < 3 ; eff_pur++){
- // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, 1st,
- // 2nd or 3rd bit (depending on the efficiency-purity point )is set to 1 .
-
- if(GetDistance(emc, cpv, "R") > (*fParameters)(cluster,eff_pur) )
+ // Looking at the CPV detector. If RCPV greater than CpvEmcDistance,
+ // 1st,2nd or 3rd bit (depending on the efficiency-purity point )
+ // is set to 1
+ if(GetCPVBit(emc, cpv, eff_pur,e) == 1 )
rp->SetPIDBit(eff_pur) ;
// Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
// bit (depending on the efficiency-purity point )is set to 1
- if(time< (*fParameters)(cluster+6,eff_pur)) {
+ if(time< (*fParameters)(2,eff_pur))
rp->SetPIDBit(eff_pur+3) ;
- }
//If we are inside the ellipse, 7th, 8th or 9th
// bit (depending on the efficiency-purity point )is set to 1
- if(GetPrincipalSign(fP,eff_pur,e) == 1)
+ if(GetPrincipalBit(fP,eff_pur,e) == 1)
rp->SetPIDBit(eff_pur+6) ;
+
+ //Pi0 analysis
+ //If we are inside the ellipse, 10th, 11th or 12th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(fPi0Analysis){
+ if(GetPrincipalPi0Bit(fPPi0,eff_pur,e) == 1)
+ rp->SetPIDBit(eff_pur+9) ;
+ }
}
-
+
+
//Set momentum, energy and other parameters
Float_t encal = GetCalibratedEnergy(e);
TVector3 dir = GetMomentumDirection(emc,cpv) ;
}
//____________________________________________________________________________
-void AliPHOSPIDv1:: Print()
+void AliPHOSPIDv1::Print()
{
// Print the parameters used for the particle type identification
- cout << "=============== AliPHOSPID1 ================" << endl ;
- cout << "Making PID "<< endl ;
-// cout << " Headers file: " << fHeaderFileName.Data() << endl ;
-// cout << " RecPoints branch title: " << fRecPointsTitle.Data() << endl ;
-// cout << " TrackSegments Branch title: " << fTrackSegmentsTitle.Data() << endl ;
-// cout << " RecParticles Branch title " << fRecParticlesTitle.Data() << endl;
- cout << " Pricipal analysis file from 0.5 to 100 " << fFileName.Data() << endl;
- cout << " Name of parameters file "<<fFileNamePar.Data() << endl ;
- cout << " Matrix of Parameters: 18x4"<<endl;
- cout << " RCPV 6x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
- cout << " TOF 6x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
- cout << " PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]"<<endl;
- cout << " Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]"<<endl;
+
+ TString message ;
+ message = "\n=============== AliPHOSPID1 ================\n" ;
+ message += "Making PID\n";
+ message += " Pricipal analysis file from 0.5 to 100 %s\n" ;
+ message += " Name of parameters file %s\n" ;
+ message += " Matrix of Parameters: 14x4\n" ;
+ message += " Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n" ;
+ message += " RCPV 2x3 rows x and z, columns function cut parameters\n" ;
+ message += " TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n" ;
+ message += " PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n" ;
+ message += " Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n" ;
+ Info("Print", message.Data(), fFileName.Data(), fFileNamePar.Data() ) ;
fParameters->Print() ;
- cout << "============================================" << endl ;
}
//____________________________________________________________________________
TMatrix dummy ;
emc->GetGlobalPosition(emcglobalpos, dummy) ;
-
dir = emcglobalpos ;
dir.SetZ( -dir.Z() ) ; // why ?
- dir.SetMag(1.) ;
//account correction to the position of IP
Float_t xo,yo,zo ; //Coordinates of the origin
gAlice->Generator()->GetOrigin(xo,yo,zo) ;
TVector3 origin(xo,yo,zo);
dir = dir - origin ;
-
+ dir.SetMag(1.) ;
return dir ;
}
//____________________________________________________________________________
AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
TClonesArray * recParticles = gime->RecParticles(BranchName()) ;
-
- cout << "AliPHOSPIDv1: event "<<gAlice->GetEvNumber() << endl ;
- cout << " found " << recParticles->GetEntriesFast() << " RecParticles " << endl ;
-
+
+ TString message ;
+ message = "\nevent " ;
+ message += gAlice->GetEvNumber() ;
+ message += " found " ;
+ message += recParticles->GetEntriesFast();
+ message += " RecParticles\n" ;
+
if(strstr(option,"all")) { // printing found TS
-
- cout << " PARTICLE "
- << " Index " << endl ;
+ message += "\n PARTICLE Index \n" ;
Int_t index ;
for (index = 0 ; index < recParticles->GetEntries() ; index++) {
- AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ;
-
- cout << setw(10) << rp->Name() << " "
- << setw(5) << rp->GetIndexInList() << " " <<endl;
- cout << "Type "<< rp->GetType() << endl;
+ AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ;
+ message += "\n" ;
+ message += rp->Name().Data() ;
+ message += " " ;
+ message += rp->GetIndexInList() ;
+ message += " " ;
+ message += rp->GetType() ;
}
- cout << "-------------------------------------------" << endl ;
}
-
+ Info("Print", message.Data() ) ;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff