// - 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 fX_center, fY_center, fA, fB, fAngle
+// inside an ellipse defined by the parameters a, b, c, x0 and y0.
// (each bit corresponds to a different efficiency-purity point of the
-// photon identification)
+// 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 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 through the study of the reconstructed
+// energy distribution of monoenergetic photons.
//
+// 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 (9,4), a
+// TMatrixD object.
//
// use case:
-// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root","v1")
+// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root")
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // reading headers from file galice1.root and create RecParticles with title v1
- // TrackSegments and RecPoints with title "v1" are used
-// // set file name for the branch RecParticles
+// // reading headers from file galice1.root and create RecParticles
+ // TrackSegments and RecPoints are used
+// // set file name for the branch RecParticles
// root [1] p->ExecuteTask("deb all time")
-// // available options
-// // "deb" - prints # of reconstructed particles
-// // "deb all" - prints # and list of RecParticles
-// // "time" - prints benchmarking results
+// // available options
+// // "deb" - prints # of reconstructed particles
+// // "deb all" - prints # and list of RecParticles
+// // "time" - prints benchmarking results
//
-// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1","v0")
+// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE)
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // reading headers from file galice1.root and create RecParticles with title v1
- // RecPoints and TrackSegments with title "v0" are used
+// //Split mode.
// root [3] p2->ExecuteTask()
//
-// There are two possible principal files available to do the analysis.
-// One for energy ranges from 0.5 to 5 GeV, the default one, and another
-// one from 0.5 to 100 GeV. To do the analysis with one of this files,
-// Use case
-// root [0] AliPHOSPIDv1 p("galice.root")
-// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// root [1] p.SetParameters("Wide energy range") (0.5-100 GeV)
-// root [2] p.ExecuteTask("deb")
-// or
-// root [0] AliPHOSPIDv1 p("galice.root")
-// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// root [1] p.SetParameters("Small energy range") (0.5-5 GeV)
-// or
-// p.SetParameters("Default") (0.5-5 GeV)
-// root [2] p.ExecuteTask("deb")
+
//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) &
// Gustavo Conesa April 2002
-
+// PCA redesigned by Gustavo Conesa October 2002:
+// 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 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.
+//
+//
+//
// --- ROOT system ---
#include "TROOT.h"
#include "TTree.h"
#include "TFile.h"
-#include "TF2.h"
-#include "TFormula.h"
-#include "TCanvas.h"
-#include "TFolder.h"
#include "TSystem.h"
#include "TBenchmark.h"
#include "TMatrixD.h"
#include "TPrincipal.h"
-#include "TSystem.h"
// --- Standard library ---
-#include <iostream.h>
-#include <fstream.h>
-#include <iomanip.h>
+//#include <Riostream.h>
// --- AliRoot header files ---
-#include "AliRun.h"
#include "AliGenerator.h"
-#include "AliPHOS.h"
#include "AliPHOSPIDv1.h"
-#include "AliPHOSClusterizerv1.h"
#include "AliPHOSTrackSegment.h"
-#include "AliPHOSTrackSegmentMakerv1.h"
#include "AliPHOSRecParticle.h"
#include "AliPHOSGeometry.h"
#include "AliPHOSGetter.h"
{
// default ctor
- fFileName = "" ;
- fFileNamePar = "" ;
- fCluster = -1 ;
- fFrom = "" ;
- fHeaderFileName = "" ;
- fOptFileName = "Default" ;
- fTrackSegmentsTitle = "" ;
- fRecPointsTitle = "" ;
- fRecParticlesTitle = "" ;
-
- fNEvent = 0 ;
- fClusterizer = 0 ;
- fTSMaker = 0 ;
- fRecParticlesInRun = 0 ;
- fX = 0 ;
- fP = 0 ;
- fParameters = 0 ;
+ InitParameters() ;
+ fDefaultInit = kTRUE ;
}
//____________________________________________________________________________
-AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name, const char * from) : AliPHOSPID(headerFile, name)
+AliPHOSPIDv1::AliPHOSPIDv1(AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
+{
+ // ctor
+ InitParameters() ;
+
+ Init() ;
+ fDefaultInit = kFALSE ;
-
+}
+
+//____________________________________________________________________________
+AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name, const Bool_t toSplit)
+:AliPHOSPID(headerFile, name,toSplit)
{
//ctor with the indication on where to look for the track segments
- fHeaderFileName = GetTitle() ;
- fTrackSegmentsTitle = GetName() ;
- fRecPointsTitle = GetName() ;
- fRecParticlesTitle = GetName() ;
- TString tempo(GetName()) ;
- tempo.Append(":") ;
- tempo.Append(Version()) ;
- SetName(tempo) ;
- fRecParticlesInRun = 0 ;
- if ( from == 0 )
- fFrom = name ;
- else
- fFrom = from ;
- fOptFileName = "Default" ;
+ InitParameters() ;
+
Init() ;
+ fDefaultInit = kFALSE ;
}
//____________________________________________________________________________
AliPHOSPIDv1::~AliPHOSPIDv1()
{
-
- delete [] fX ; // Principal input
- delete [] fP ; // Principal components
- delete fParameters ; // Matrix of Parameters
+ // dtor
+ // fDefaultInit = kTRUE if PID created by default ctor (to get just the parameters)
+
+ delete [] fX ; // Principal input
+ delete [] fP ; // Principal components
+ delete [] fPPi0 ; // Pi0 Principal components
+
+ if (!fDefaultInit) {
+// AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ // remove the task from the folder list
+// gime->RemoveTask("P",GetName()) ;
+// TString name(GetName()) ;
+// name.ReplaceAll("pid", "clu") ;
+// gime->RemoveTask("C",name) ;
+
+// // remove the data from the folder list
+// name = GetName() ;
+// name.Remove(name.Index(":")) ;
+// gime->RemoveObjects("RE", name) ; // EMCARecPoints
+// gime->RemoveObjects("RC", name) ; // CPVRecPoints
+// gime->RemoveObjects("T", name) ; // TrackSegments
+// gime->RemoveObjects("P", name) ; // RecParticles
+
+// // Delete gAlice
+// gime->CloseFile() ;
+
+ fSplitFile = 0 ;
+ }
}
//____________________________________________________________________________
const TString AliPHOSPIDv1::BranchName() const
{
+ // gives the name of the current branch
TString branchName(GetName() ) ;
branchName.Remove(branchName.Index(Version())-1) ;
return branchName ;
if ( strcmp(GetTitle(), "") == 0 )
SetTitle("galice.root") ;
-
- SetParameters(fOptFileName) ; // fill the parameters matrix from parameters file
-
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), fFrom.Data()) ;
- gime->SetRecParticlesTitle(BranchName()) ;
+ TString branchname(GetName()) ;
+ branchname.Remove(branchname.Index(Version())-1) ;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(),branchname.Data(),fToSplit ) ;
+
+ // 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 ;
}
+
+ fSplitFile = 0 ;
+ if(fToSplit){
+ //First - extract full path if necessary
+ TString fileName(GetTitle()) ;
+ Ssiz_t islash = fileName.Last('/') ;
+ if(islash<fileName.Length())
+ fileName.Remove(islash+1,fileName.Length()) ;
+ else
+ fileName="" ;
+ fileName+="PHOS.RecData." ;
+ if((strcmp(branchname.Data(),"Default")!=0)&&(strcmp(branchname.Data(),"")!=0)){
+ fileName+=branchname.Data() ;
+ fileName+="." ;
+ }
+ fileName+="root" ;
+ fSplitFile = static_cast<TFile*>(gROOT->GetFile(fileName.Data()));
+ if(!fSplitFile)
+ fSplitFile = TFile::Open(fileName.Data(),"update") ;
+ }
gime->PostPID(this) ;
// create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName
- gime->PostRecParticles(BranchName()) ;
+ gime->PostRecParticles(branchname) ;
}
+
//____________________________________________________________________________
-Double_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur)const
+void AliPHOSPIDv1::InitParameters()
{
- // 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 cluster = GetClusterOption(Cluster_En,kTRUE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- return (*fParameters)(cluster,eff_pur) ;
-
+// fFrom = "" ;
+// fHeaderFileName = GetTitle() ;
+// TString name(GetName()) ;
+// if (name.IsNull())
+// name = "Default" ;
+// fTrackSegmentsTitle = name ;
+// fRecPointsTitle = name ;
+// fRecParticlesTitle = name ;
+// name.Append(":") ;
+// name.Append(Version()) ;
+// SetName(name) ;
+ fRecParticlesInRun = 0 ;
+ fNEvent = 0 ;
+ // fClusterizer = 0 ;
+ // fTSMaker = 0 ;
+ fRecParticlesInRun = 0 ;
+ TString pidName( GetName()) ;
+ if (pidName.IsNull() )
+ pidName = "Default" ;
+ pidName.Append(":") ;
+ pidName.Append(Version()) ;
+ SetName(pidName) ;
+ fPi0Analysis = kFALSE ;
+ SetParameters() ; // fill the parameters matrix from parameters file
}
+
//____________________________________________________________________________
+const Float_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t e, const TString Axis) const
+{
+ // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
+ // Purity-Efficiency point
-Double_t AliPHOSPIDv1::GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) const
+ Int_t i = -1;
+ if (Axis.Contains("X")) i = 1;
+ else if (Axis.Contains("Z")) i = 2;
+ else
+ 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 Int_t effpur) 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)
-
- Int_t cluster = GetClusterOption( Cluster_En,kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
+ // Get TimeGate parameter depending on Purity-Efficiency point
+
+ if(effpur>2 || effpur<0)
+ Error("GetTimeGate","Invalid Efficiency-Purity choice %d",effpur);
+ return (*fParameters)(3,effpur) ;
- if((cluster!= -1)||(eff_pur != -1))
- return (*fParameters)(cluster+3+fCluster,eff_pur) ;
-
}
//_____________________________________________________________________________
-Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
+const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
{
// Calculates the distance between the EMC RecPoint and the PPSD RecPoint
}
return 100000000 ;
}
-
//____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetPrincipalSign(Double_t* P, Int_t cluster, Int_t eff_pur )const
+const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t EffPur, const Float_t e) const
{
- //This method gives if the PCA of the particle are inside a defined ellipse
-
- // Get the parameters that define the ellipse stored in the
- // fParameters matrix.
- Double_t X_center = (*fParameters)(cluster+6,eff_pur) ;
- Double_t Y_center = (*fParameters)(cluster+9,eff_pur) ;
- Double_t A = (*fParameters)(cluster+12,eff_pur) ;
- Double_t B = (*fParameters)(cluster+15,eff_pur) ;
- Double_t Angle = (*fParameters)(cluster+18,eff_pur) ;
-
- Int_t prinsign;
- Double_t Dx = 0. ;
- Double_t Delta = 0. ;
- Double_t Y = 0. ;
- Double_t Y_1 = 0. ;
- Double_t Y_2 = 0. ;
- Double_t Pi = TMath::Pi() ;
- Double_t Cos_Theta = TMath::Cos(Pi*Angle/180.) ;
- Double_t Sin_Theta = TMath::Sin(Pi*Angle/180.) ;
-
- Dx = P[0] - X_center ;
- Delta = 4.*A*A*A*B* (A*A*Cos_Theta*Cos_Theta
- + B*B*Sin_Theta*Sin_Theta - Dx*Dx) ;
- if (Delta < 0.)
- {prinsign=0;}
-
- else if (Delta == 0.)
- {
- Y = Cos_Theta*Sin_Theta*(A*A - B*B)*Dx /
- (A*A*Cos_Theta*Cos_Theta + B*B*Sin_Theta*Sin_Theta) ;
- Y += Y_center ;
- if(P[1]==Y )
- {prinsign=1;}
- else
- {prinsign=0;}
- }
- else
- {
- Y_1 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx +
- TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta +
- B*B*Sin_Theta*Sin_Theta) ;
- Y_2 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx -
- TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta
- + B*B*Sin_Theta*Sin_Theta) ;
- Y_1 += Y_center ;
- Y_2 += Y_center ;
- if ((P[1]<=Y_1) && (P[1]>=Y_2))
- {prinsign=1;}
- else
- {prinsign=0;}
- }
- return prinsign;
-}
-
-//____________________________________________________________________________
-void AliPHOSPIDv1::SetPrincipalFileOptions(TString OptFileName) {
- fOptFileName = OptFileName ;
-
- if(fOptFileName.Contains("Small energy range")||fOptFileName.Contains("Default")){
- fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-5.root" ;
- fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_5.dat");
- fCluster = 0 ;
- }
+ // return 1 if a combination of EMC and CPV is neutral rec.points matches a neutral particle
+ // return 0 otherwise
+ if(EffPur>2 || EffPur<0)
+ Error("GetCPVBit","Invalid Efficiency-Purity choice %d",EffPur);
+
+ Float_t sigX = GetCpvtoEmcDistanceCut(e,"X");
+ Float_t sigZ = GetCpvtoEmcDistanceCut(e,"Z");
+
+ Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
+ Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
+
+ if((deltaX>sigX*(EffPur+1)) || (deltaZ>sigZ*(EffPur+1)))
+ return 1;//Neutral
+ else
+ return 0;//Charged
- else if(fOptFileName.Contains("Wide energy range")){
- fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
- fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_100.dat");
- fCluster = 3 ;
- }
- else{
- cout<<" Invalid energy range option "<<endl;
- cout<<" Possible options : Default (0.5-5 GeV) "<<endl;
- cout<<" Small energy range (0.5-5 GeV) "<<endl;
- cout<<" Wide energy range (0.5-100 GeV) "<<endl;
- }
}
//____________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle)
+const Double_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
{
+// It calibrates Energy depending on the recpoint energy.
+// The energy of the reconstructed cluster is corrected with
+// the formula A + B* E + C* E^2, whose parameters where obtained
+// through the study of the reconstructed energy distribution of
+// monoenergetic photons.
+
+ Double_t p[]={0.,0.,0.};
+ Int_t 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 ;
- // Set all ellipse parameters 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 cluster = GetClusterOption( Cluster_En, kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1)){
- (*fParameters)(cluster+6 +fCluster,eff_pur) = x ;
- (*fParameters)(cluster+9 +fCluster,eff_pur) = y ;
- (*fParameters)(cluster+12+fCluster,eff_pur) = a ;
- (*fParameters)(cluster+15+fCluster,eff_pur) = b ;
- (*fParameters)(cluster+18+fCluster,eff_pur) = angle ;
- }
-
-}
-//__________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x)
-{
- // Set the ellipse parameter x_center depending on the custer energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t cluster = GetClusterOption( Cluster_En, kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+6+fCluster,eff_pur) = x ;
-
}
-//_________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y)
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetPrincipalBit(const Double_t* p ,const Int_t effpur, const Float_t e)const
{
+ //Is the particle inside de PCA ellipse?
- // Set the ellipse parameter y_center 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 cluster = GetClusterOption( Cluster_En, kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+9+fCluster,eff_pur) = y ;
-
-}
-//_________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a)
-{
- // Set the ellipse parameter a 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 = GetEllipseParameter("a", e);
+ Double_t b = GetEllipseParameter("b", e);
+ Double_t c = GetEllipseParameter("c", e);
+ Double_t xCenter = GetEllipseParameter("x0", e);
+ Double_t yCenter = GetEllipseParameter("y0", e);
- Int_t cluster = GetClusterOption(Cluster_En,kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
+ Double_t r = TMath::Power((p[0] - xCenter)/a,2) +
+ TMath::Power((p[1] - yCenter)/b,2) +
+ c*(p[0] - xCenter)*(p[1] - yCenter)/(a*b) ;
+ //3 different ellipses defined
+ if((effpur==2)&&(r <1./2.)) prinbit= 1;
+ if((effpur==1)&&(r <2. )) prinbit= 1;
+ if((effpur==0)&&(r <9./2.)) prinbit= 1;
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+12+fCluster,eff_pur) = a ;
+ if(r<0)
+ Error("GetPrincipalBit", "Negative square? R=%f \n",r) ;
-}
-//________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b)
-{
- // Set the ellipse parameter b 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 cluster = GetClusterOption(Cluster_En,kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
+ return prinbit;
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+15+fCluster,eff_pur) = b ;
-
}
-//________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle)
+//____________________________________________________________________________
+const Int_t AliPHOSPIDv1::GetPrincipalPi0Bit(const Double_t* p, const Int_t effpur, const Float_t e)const
{
+ //Is the particle inside de Pi0 PCA ellipse?
- // Set the ellipse parameter angle 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 cluster = GetClusterOption(Cluster_En,kFALSE) ;
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+18+fCluster,eff_pur) = angle ;
+ Int_t prinbit = 0 ;
+ Double_t a = GetEllipseParameterPi0("a", e);
+ Double_t b = GetEllipseParameterPi0("b", e);
+ Double_t c = GetEllipseParameterPi0("c", e);
+ Double_t xCenter = GetEllipseParameterPi0("x0", e);
+ Double_t yCenter = GetEllipseParameterPi0("y0", e);
-}
+ Double_t r = TMath::Power((p[0] - xCenter)/a,2) +
+ TMath::Power((p[1] - yCenter)/b,2) +
+ c*(p[0] - xCenter)*(p[1] - yCenter)/(a*b) ;
+ //3 different ellipses defined
+ if((effpur==2)&&(r <1./2.)) prinbit= 1;
+ if((effpur==1)&&(r <2. )) prinbit= 1;
+ if((effpur==0)&&(r <9./2.)) prinbit= 1;
+
+ if(r<0)
+ Error("GetPrincipalPi0Bit", "Negative square?") ;
+
+ return prinbit;
+
+}
//_____________________________________________________________________________
-void AliPHOSPIDv1::SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut)
+void AliPHOSPIDv1::SetCpvtoEmcDistanceCutParameters(Float_t e, Int_t effpur, TString Axis,Float_t cut)
{
+ // Set the parameters to calculate Cpvto EmcDistanceCut depending on the cluster energy and
+ // Purity-Efficiency point
- // 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)
+ if(effpur>2 || effpur<0)
+ Error("SetCpvtoEmcDistanceCutParameters","Invalid Efficiency-Purity choice %d",effpur);
- Int_t cluster = GetClusterOption(Cluster_En,kTRUE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster,eff_pur) = cut ;
+ 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,effpur) = cut ;
}
//_____________________________________________________________________________
-void AliPHOSPIDv1::SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate)
+void AliPHOSPIDv1::SetTimeGate(Int_t effpur, 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 cluster = GetClusterOption(Cluster_En,kFALSE);
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- if((cluster!= -1)||(eff_pur != -1))
- (*fParameters)(cluster+3+fCluster,eff_pur) = gate ;
+ // Purity-Efficiency point
+ if(effpur>2 || effpur<0)
+ Error("SetTimeGate","Invalid Efficiency-Purity choice %d",effpur);
+ (*fParameters)(3,effpur)= gate ;
}
//_____________________________________________________________________________
-void AliPHOSPIDv1::SetParameters(TString OptFileName)
+void AliPHOSPIDv1::SetParameters()
{
// PCA : To do the Principal Components Analysis it is necessary
// the Principal file, which is opened here
fX = new double[7]; // Data for the PCA
fP = new double[7]; // Eigenvalues of the PCA
-
- fOptFileName = OptFileName ;
+ fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA
- SetPrincipalFileOptions(fOptFileName);
+ // Read photon principals from the photon file
+
+ fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
TFile f( fFileName.Data(), "read" ) ;
- //cout<<fFileName.Data()<<endl;
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 21x3 or 24x3
- // elements (depending on the principal file 21 rows for 0.5-5 GeV and 24
- // rows for 0.5-100).
- // All the parameters defined in this file are, in order of row (there are
- // 3 rows per parameter): CpvtoEmcDistanceCut(if the principal file is 0.5-100
- // GeV than 6 rows), TimeGate (and the ellipse parameters), X_center, Y_center,
- // a, b, angle. Each row of a given parameter depends on the cluster energy range
- // (wich depends on the chosen principal file)
- // Each column designes the parameters for a point in the Efficiency-Purity
- // of the photon identification P1(96%,63%), P2(87%,0.88%) and P3(68%,94%)
- // for the principal file from 0.5-5 GeV and for the other one P1(95%,79%),
- // P2(89%,90%) and P3(72%,96%)
-
- Int_t rows = 21;
- if(fCluster == 0)rows = 21 ;
- if(fCluster == 3)rows = 24 ;
-
- fParameters = new TMatrixD(rows,3) ;
- //cout<<fFileNamePar<<endl;
- ifstream paramFile(fFileNamePar, ios::in) ;
-
- Int_t i,j ;
-
- for(i = 0; i< rows; i++){
- for(j = 0; j< 3; j++){
- paramFile >> (*fParameters)(i,j) ;
- }
+ // Read pi0 principals from the pi0 file
+
+ fFileNamePi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ;
+ TFile fPi0( fFileNamePi0.Data(), "read" ) ;
+ fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ;
+ fPi0.Close() ;
+
+ // Open parameters file and initialization of the Parameters matrix.
+ // In the File Parameters.dat are all the parameters. These are introduced
+ // in a matrix of 9x4
+ //
+ // All the parameters defined in this file are, in order of row:
+ // -CpvtoEmcDistanceCut (2 row (x and z) and 3 columns, each one depending
+ // on the parameter of the funtion that sets the cut in x or z.
+ // -TimeGate, 1 row and 3 columns (3 efficiency-purty cuts)
+ // -PCA, parameters of the functions that
+ // calculate the ellipse parameters, x0,y0,a, b, c. These 5 parameters
+ // (5 rows) depend on 4 parameters (columns).
+ // -Finally there is a row with the energy calibration parameters,
+ // 3 parameters.
+
+ fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
+ fParameters = new TMatrixD(14,4) ;
+ const Int_t kmaxLeng=255;
+ char string[kmaxLeng];
+
+ // 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,kmaxLeng,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();
- // fParameters->Print();
+ fclose(fd);
}
-//_____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetClusterOption(const Float_t Cluster_En, const Bool_t rcpv) const
-{
- // Gives the cluster energy range.
+
+//________________________________________________________________________
+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=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))
+ Error("SetPi0EllipseParameter", "No parameter with index %d", i) ;
+ else if(p==-1)
+ Error("SetPi0EllipseParameter", "No parameter with name %s", Param.Data() ) ;
+ else
+ (*fParameters)(p,i) = par ;
+}
+//________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetParameterToCalculateEllipse(const TString Param, const Int_t i) const
+{
+ // Get the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ Int_t p= -1;
+ Double_t par = -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("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))
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with index", i) ;
+ else if(p==-1)
+ Error("GetParameterToCalculatePi0Ellipse", "No parameter with name %s", Param.Data() ) ;
+ else
+ par = (*fParameters)(p,i) ;
- Int_t cluster = -1 ;
+ return par;
+
+}
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetCalibrationParameter(Int_t i,Double_t param) const
+{
+ (*fParameters)(0,i) = param ;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetCalibrationParameter(const Int_t i) const
+{
+ Float_t param = (*fParameters)(0,i);
+ return param;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+{
+ // Calculates the parameter Param of the ellipse
- if((fCluster == 0)){
- if((Cluster_En > 0.3)&&(Cluster_En <= 1.0)) cluster = 0 ;
- if((Cluster_En > 1.0)&&(Cluster_En <= 2.0)) cluster = 1 ;
- if( Cluster_En > 2.0) cluster = 2 ;
- }
- else if(fCluster == 3 &&(rcpv == kFALSE)){
- if((Cluster_En > 0.5 )&&(Cluster_En <= 20.0)) cluster = 0 ;
- if((Cluster_En > 20.0)&&(Cluster_En <= 50.0)) cluster = 1 ;
- if( Cluster_En > 50.0) cluster = 2 ;
+ 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)(4,i);
+ if(E>70.)E=70.;
}
- else if(fCluster == 3 &&(rcpv == kTRUE)){
- if((Cluster_En > 0.5 )&&(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 ;
+
+ else if(Param.Contains("b")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(5,i);
+ if(E>70.)E=70.;
}
- else {
- cluster = -1 ;
- cout<<"Invalid Energy option"<<endl;
+
+ else if(Param.Contains("c"))
+ for(i=0;i<4;i++)p[i]=(*fParameters)(6,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);
- return cluster;
+ value = p[0]/TMath::Sqrt(E)+p[1]*E+p[2]*E*E+p[3];
+ return value;
}
+
//____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetEffPurOption(const TString Eff_Pur) const
+// 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
{
-
- // 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;
+ // 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;
}
//____________________________________________________________________________
return ;
}
- //cout << gDirectory->GetName() << endl ;
- gAlice->GetEvent(0) ;
-
- //check, if the branch with name of this" already exits?
- 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() ;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+ if(gime->BranchExists("RecParticles") )
+ return ;
+ Int_t nevents = gime->MaxEvent() ;
Int_t ievent ;
- AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
+
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) ;
+ }
}
//____________________________________________________________________________
// Makes a RecParticle out of a TrackSegment
AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
- TObjArray * emcRecPoints = gime->EmcRecPoints(fFrom) ;
- TObjArray * cpvRecPoints = gime->CpvRecPoints(fFrom) ;
- TClonesArray * trackSegments = gime->TrackSegments(fFrom) ;
+ TObjArray * emcRecPoints = gime->EmcRecPoints() ;
+ TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
+ TClonesArray * trackSegments = gime->TrackSegments() ;
if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
- cerr << "ERROR: AliPHOSPIDv1::MakeRecParticles -> RecPoints or TrackSegments with name "
- << fFrom << " not found ! " << endl ;
- abort() ;
+ Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ;
}
- TClonesArray * recParticles = gime->RecParticles(BranchName()) ;
+ TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Clear();
-
TIter next(trackSegments) ;
AliPHOSTrackSegment * ts ;
Int_t index = 0 ;
AliPHOSRecParticle * rp ;
-
while ( (ts = (AliPHOSTrackSegment *)next()) ) {
new( (*recParticles)[index] ) AliPHOSRecParticle() ;
if(ts->GetCpvIndex()>=0)
cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
- //set momentum and energy first
- Float_t e = emc->GetEnergy() ;
- TVector3 dir = GetMomentumDirection(emc,cpv) ;
- dir.SetMag(e) ;
-
- rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ;
- rp->SetCalcMass(0);
-
// Now set type (reconstructed) of the particle
// Choose the cluster energy range
- // Ellipse and rcpv cut in function of the cluster energy
- Int_t clusterrcpv = GetClusterOption(e,kTRUE) ;
- Int_t cluster = GetClusterOption(e,kFALSE) ;
- if((cluster== -1)||(clusterrcpv == -1)) continue ;
+
+ if (!emc) {
+ Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ;
+ }
- // 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)(clusterrcpv,eff_pur) )
- 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(emc->GetTime()< (*fParameters)(cluster+3+fCluster,eff_pur))
- rp->SetPIDBit(eff_pur+3) ;
-
- // Looking PCA. Define and calculate the data (X), introduce in the function
- // X2P that gives the components (P).
- Float_t Spher = 0. ;
- Float_t Emaxdtotal = 0. ;
- Float_t lambda[2] ;
+ 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).
+
+ Float_t spher = 0. ;
+ Float_t emaxdTotal = 0. ;
- emc->GetElipsAxis(lambda) ;
- 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();
+ emaxdTotal=emc->GetMaximalEnergy()/emc->GetEnergy();
fX[0] = lambda[0] ;
fX[1] = lambda[1] ;
fX[2] = emc->GetDispersion() ;
- fX[3] = Spher ;
+ fX[3] = spher ;
fX[4] = emc->GetMultiplicity() ;
- fX[5] = Emaxdtotal ;
+ fX[5] = emaxdTotal ;
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)
+ 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(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)(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,cluster+fCluster,eff_pur) == 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) ;
+ dir.SetMag(encal) ;
+ rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ;
+ rp->SetCalcMass(0);
rp->Name(); //If photon sets the particle pdg name to gamma
rp->SetProductionVertex(0,0,0,0);
rp->SetFirstMother(-1);
}
//____________________________________________________________________________
-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 " << fFileName.Data() << endl;
- cout << " Matrix of Parameters: "<<endl;
- cout << " Name of parameters file "<<fFileNamePar.Data() << endl ;
- cout << " 3 Columns [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
- if(fCluster == 0)
- cout << " 21 Rows, each 3 [ RCPV, TOF, X_Center, Y_Center, A, B, Angle ]"<<endl;
- if(fCluster == 3)
- cout << " 24 Rows, [ 6 RCPV, 3 TOF, 3 X_Center, 3 Y_Center, 3 A, 3 B, 3 Angle ]"<<endl;
-
- //cout<<fOptFileName<<endl;
- SetParameters(fOptFileName) ;
- fParameters->Print() ;
- cout << "============================================" << 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() ;
}
//____________________________________________________________________________
void AliPHOSPIDv1::WriteRecParticles(Int_t event)
{
-
+ // writes the reconstructed particles to file
AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ;
- TClonesArray * recParticles = gime->RecParticles(BranchName()) ;
+ TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Expand(recParticles->GetEntriesFast() ) ;
-
- //Make branch in TreeR for RecParticles
- char * filename = 0;
- if(gSystem->Getenv("CONFIG_SPLIT_FILE")!=0){ //generating file name
- filename = new char[strlen(gAlice->GetBaseFile())+20] ;
- sprintf(filename,"%s/PHOS.Reco.root",gAlice->GetBaseFile()) ;
+ TTree * treeR ;
+
+ if(fToSplit){
+ if(!fSplitFile)
+ return ;
+ fSplitFile->cd() ;
+ char name[10] ;
+ sprintf(name,"%s%d", "TreeR",event) ;
+ treeR = dynamic_cast<TTree*>(fSplitFile->Get(name));
+ }
+ else{
+ treeR = gAlice->TreeR();
}
- TDirectory *cwd = gDirectory;
+ if(!treeR){
+ gAlice->MakeTree("R", fSplitFile);
+ treeR = gAlice->TreeR() ;
+ }
//First rp
Int_t bufferSize = 32000 ;
- TBranch * rpBranch = gAlice->TreeR()->Branch("PHOSRP",&recParticles,bufferSize);
- rpBranch->SetTitle(fRecParticlesTitle);
- if (filename) {
- rpBranch->SetFile(filename);
- TIter next( rpBranch->GetListOfBranches());
- TBranch * sb ;
- while ((sb=(TBranch*)next())) {
- sb->SetFile(filename);
- }
- cwd->cd();
- }
+ TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize);
+ rpBranch->SetTitle(BranchName());
+
//second, pid
Int_t splitlevel = 0 ;
AliPHOSPIDv1 * pid = this ;
- TBranch * pidBranch = gAlice->TreeR()->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel);
- pidBranch->SetTitle(fRecParticlesTitle.Data());
- if (filename) {
- pidBranch->SetFile(filename);
- TIter next( pidBranch->GetListOfBranches());
- TBranch * sb ;
- while ((sb=(TBranch*)next())) {
- sb->SetFile(filename);
- }
- cwd->cd();
- }
+ TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel);
+ pidBranch->SetTitle(BranchName());
rpBranch->Fill() ;
pidBranch->Fill() ;
- gAlice->TreeR()->Write(0,kOverwrite) ;
-
- delete [] filename ;
+ treeR->AutoSave() ; //Write(0,kOverwrite) ;
+ if(gAlice->TreeR()!=treeR){
+ treeR->Delete();
+ }
}
//____________________________________________________________________________
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