/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$
+ * Revision 1.101 2005/05/28 14:19:04 schutz
+ * Compilation warnings fixed by T.P.
+ *
+ */
+
//_________________________________________________________________________
// Implementation version v1 of the PHOS particle identifier
// Particle identification based on the
//
//
// --- ROOT system ---
-#include "TROOT.h"
-#include "TTree.h"
-#include "TFile.h"
-#include "TF2.h"
+
+
+// --- Standard library ---
+#include <TMatrixF.h>
#include "TFormula.h"
-#include "TCanvas.h"
-#include "TFolder.h"
-#include "TSystem.h"
#include "TBenchmark.h"
-#include "TMatrixD.h"
#include "TPrincipal.h"
+#include "TFile.h"
#include "TSystem.h"
-// --- Standard library ---
-
-
// --- AliRoot header files ---
-
+ //#include "AliLog.h"
#include "AliGenerator.h"
#include "AliPHOS.h"
#include "AliPHOSPIDv1.h"
-#include "AliPHOSClusterizerv1.h"
-#include "AliPHOSEmcRecPoint.h"
-#include "AliPHOSTrackSegment.h"
-#include "AliPHOSTrackSegmentMakerv1.h"
-#include "AliPHOSRecParticle.h"
-#include "AliPHOSGeometry.h"
#include "AliPHOSGetter.h"
ClassImp( AliPHOSPIDv1)
AliPHOSPIDv1::~AliPHOSPIDv1()
{
// dtor
+ fPrincipalPhoton = 0;
+ fPrincipalPi0 = 0;
delete [] fX ; // Principal input
delete [] fPPhoton ; // Photon Principal components
delete [] fPPi0 ; // Pi0 Principal components
+
+ delete fParameters;
+ delete fTFphoton;
+ delete fTFpiong;
+ delete fTFkaong;
+ delete fTFkaonl;
+ delete fTFhhadrong;
+ delete fTFhhadronl;
+ delete fDFmuon;
}
//____________________________________________________________________________
const TString AliPHOSPIDv1::BranchName() const
// Make all memory allocations that are not possible in default constructor
// Add the PID task to the list of PHOS tasks
- AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ if(!gime)
+ gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
if ( !gime->PID() )
gime->PostPID(this) ;
void AliPHOSPIDv1::InitParameters()
{
// Initialize PID parameters
+ fWrite = kTRUE ;
fRecParticlesInRun = 0 ;
fNEvent = 0 ;
fRecParticlesInRun = 0 ;
+ fBayesian = kTRUE ;
SetParameters() ; // fill the parameters matrix from parameters file
SetEventRange(0,-1) ;
+
+ // initialisation of response function parameters
+ // Tof
+
+// // Photons
+// fTphoton[0] = 0.218 ;
+// fTphoton[1] = 1.55E-8 ;
+// fTphoton[2] = 5.05E-10 ;
+// fTFphoton = new TFormula("ToF response to photons" , "gaus") ;
+// fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ;
+
+// // Pions
+// //Gaus (0 to max probability)
+// fTpiong[0] = 0.0971 ;
+// fTpiong[1] = 1.58E-8 ;
+// fTpiong[2] = 5.69E-10 ;
+// fTFpiong = new TFormula("ToF response to pions" , "gaus") ;
+// fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ;
+
+// // Kaons
+// //Gaus (0 to max probability)
+// fTkaong[0] = 0.0542 ;
+// fTkaong[1] = 1.64E-8 ;
+// fTkaong[2] = 6.07E-10 ;
+// fTFkaong = new TFormula("ToF response to kaon" , "gaus") ;
+// fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ;
+// //Landau (max probability to inf)
+// fTkaonl[0] = 0.264 ;
+// fTkaonl[1] = 1.68E-8 ;
+// fTkaonl[2] = 4.10E-10 ;
+// fTFkaonl = new TFormula("ToF response to kaon" , "landau") ;
+// fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ;
+
+// //Heavy Hadrons
+// //Gaus (0 to max probability)
+// fThhadrong[0] = 0.0302 ;
+// fThhadrong[1] = 1.73E-8 ;
+// fThhadrong[2] = 9.52E-10 ;
+// fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ;
+// fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ;
+// //Landau (max probability to inf)
+// fThhadronl[0] = 0.139 ;
+// fThhadronl[1] = 1.745E-8 ;
+// fThhadronl[2] = 1.00E-9 ;
+// fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ;
+// fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ;
+
+ // Photons
+ fTphoton[0] = 7.83E8 ;
+ fTphoton[1] = 1.55E-8 ;
+ fTphoton[2] = 5.09E-10 ;
+ fTFphoton = new TFormula("ToF response to photons" , "gaus") ;
+ fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ;
+
+ // Pions
+ //Gaus (0 to max probability)
+ fTpiong[0] = 6.73E8 ;
+ fTpiong[1] = 1.58E-8 ;
+ fTpiong[2] = 5.87E-10 ;
+ fTFpiong = new TFormula("ToF response to pions" , "gaus") ;
+ fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ;
+
+ // Kaons
+ //Gaus (0 to max probability)
+ fTkaong[0] = 3.93E8 ;
+ fTkaong[1] = 1.64E-8 ;
+ fTkaong[2] = 6.07E-10 ;
+ fTFkaong = new TFormula("ToF response to kaon" , "gaus") ;
+ fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ;
+ //Landau (max probability to inf)
+ fTkaonl[0] = 2.0E9 ;
+ fTkaonl[1] = 1.68E-8 ;
+ fTkaonl[2] = 4.10E-10 ;
+ fTFkaonl = new TFormula("ToF response to kaon" , "landau") ;
+ fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ;
+
+ //Heavy Hadrons
+ //Gaus (0 to max probability)
+ fThhadrong[0] = 2.02E8 ;
+ fThhadrong[1] = 1.73E-8 ;
+ fThhadrong[2] = 9.52E-10 ;
+ fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ;
+ fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ;
+ //Landau (max probability to inf)
+ fThhadronl[0] = 1.10E9 ;
+ fThhadronl[1] = 1.74E-8 ;
+ fThhadronl[2] = 1.00E-9 ;
+ fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ;
+ fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ;
+
+
+
+ // Shower shape: dispersion gaussian parameters
+ // Photons
+
+// fDphoton[0] = 4.62e-2; fDphoton[1] = 1.39e-2 ; fDphoton[2] = -3.80e-2;//constant
+// fDphoton[3] = 1.53 ; fDphoton[4] =-6.62e-2 ; fDphoton[5] = 0.339 ;//mean
+// fDphoton[6] = 6.89e-2; fDphoton[7] =-6.59e-2 ; fDphoton[8] = 0.194 ;//sigma
+
+// fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant
+// fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean
+// fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma
+
+// fDhadron[0] = 1.61E-2 ; fDhadron[1] = 3.03E-3 ; fDhadron[2] = 1.01E-2 ;//constant
+// fDhadron[3] = 3.81 ; fDhadron[4] = 0.232 ; fDhadron[5] =-1.25 ;//mean
+// fDhadron[6] = 0.897 ; fDhadron[7] = 0.0987 ; fDhadron[8] =-0.534 ;//sigma
+
+ fDphoton[0] = 1.5 ; fDphoton[1] = 0.49 ; fDphoton[2] =-1.7E-2 ;//constant
+ fDphoton[3] = 1.5 ; fDphoton[4] = 4.0E-2 ; fDphoton[5] = 0.21 ;//mean
+ fDphoton[6] = 4.8E-2 ; fDphoton[7] =-0.12 ; fDphoton[8] = 0.27 ;//sigma
+ fDphoton[9] = 16.; //for E> fDphoton[9] parameters calculated at fDphoton[9]
+
+ fDpi0[0] = 0.25 ; fDpi0[1] = 3.3E-2 ; fDpi0[2] =-1.0e-5 ;//constant
+ fDpi0[3] = 1.50 ; fDpi0[4] = 398. ; fDpi0[5] = 12. ;//mean
+ fDpi0[6] =-7.0E-2 ; fDpi0[7] =-524. ; fDpi0[8] = 22. ;//sigma
+ fDpi0[9] = 110.; //for E> fDpi0[9] parameters calculated at fDpi0[9]
+
+ fDhadron[0] = 6.5 ; fDhadron[1] =-5.3 ; fDhadron[2] = 1.5 ;//constant
+ fDhadron[3] = 3.8 ; fDhadron[4] = 0.23 ; fDhadron[5] =-1.2 ;//mean
+ fDhadron[6] = 0.88 ; fDhadron[7] = 9.3E-2 ; fDhadron[8] =-0.51 ;//sigma
+ fDhadron[9] = 2.; //for E> fDhadron[9] parameters calculated at fDhadron[9]
+
+ fDmuon[0] = 0.0631 ;
+ fDmuon[1] = 1.4 ;
+ fDmuon[2] = 0.0557 ;
+ fDFmuon = new TFormula("Shower shape response to muons" , "landau") ;
+ fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ;
+
+
+ // x(CPV-EMC) distance gaussian parameters
+
+// fXelectron[0] = 8.06e-2 ; fXelectron[1] = 1.00e-2; fXelectron[2] =-5.14e-2;//constant
+// fXelectron[3] = 0.202 ; fXelectron[4] = 8.15e-3; fXelectron[5] = 4.55 ;//mean
+// fXelectron[6] = 0.334 ; fXelectron[7] = 0.186 ; fXelectron[8] = 4.32e-2;//sigma
+
+// //charged hadrons gaus
+// fXcharged[0] = 6.43e-3 ; fXcharged[1] =-4.19e-5; fXcharged[2] = 1.42e-3;//constant
+// fXcharged[3] = 2.75 ; fXcharged[4] =-0.40 ; fXcharged[5] = 1.68 ;//mean
+// fXcharged[6] = 3.135 ; fXcharged[7] =-9.41e-2; fXcharged[8] = 1.31e-2;//sigma
+
+// // z(CPV-EMC) distance gaussian parameters
+
+// fZelectron[0] = 8.22e-2 ; fZelectron[1] = 5.11e-3; fZelectron[2] =-3.05e-2;//constant
+// fZelectron[3] = 3.09e-2 ; fZelectron[4] = 5.87e-2; fZelectron[5] =-9.49e-2;//mean
+// fZelectron[6] = 0.263 ; fZelectron[7] =-9.02e-3; fZelectron[8] = 0.151 ;//sigma
+
+// //charged hadrons gaus
+
+// fZcharged[0] = 1.00e-2 ; fZcharged[1] = 2.82E-4 ; fZcharged[2] = 2.87E-3 ;//constant
+// fZcharged[3] =-4.68e-2 ; fZcharged[4] =-9.21e-3 ; fZcharged[5] = 4.91e-2 ;//mean
+// fZcharged[6] = 1.425 ; fZcharged[7] =-5.90e-2 ; fZcharged[8] = 5.07e-2 ;//sigma
+
+
+ fXelectron[0] =-1.6E-2 ; fXelectron[1] = 0.77 ; fXelectron[2] =-0.15 ;//constant
+ fXelectron[3] = 0.35 ; fXelectron[4] = 0.25 ; fXelectron[5] = 4.12 ;//mean
+ fXelectron[6] = 0.30 ; fXelectron[7] = 0.11 ; fXelectron[8] = 0.16 ;//sigma
+ fXelectron[9] = 3.; //for E> fXelectron[9] parameters calculated at fXelectron[9]
+
+ //charged hadrons gaus
+ fXcharged[0] = 0.14 ; fXcharged[1] =-3.0E-2 ; fXcharged[2] = 0 ;//constant
+ fXcharged[3] = 1.4 ; fXcharged[4] =-9.3E-2 ; fXcharged[5] = 1.4 ;//mean
+ fXcharged[6] = 5.7 ; fXcharged[7] = 0.27 ; fXcharged[8] =-1.8 ;//sigma
+ fXcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9]
+
+ // z(CPV-EMC) distance gaussian parameters
+
+ fZelectron[0] = 0.49 ; fZelectron[1] = 0.53 ; fZelectron[2] =-9.8E-2 ;//constant
+ fZelectron[3] = 2.8E-2 ; fZelectron[4] = 5.0E-2 ; fZelectron[5] =-8.2E-2 ;//mean
+ fZelectron[6] = 0.25 ; fZelectron[7] =-1.7E-2 ; fZelectron[8] = 0.17 ;//sigma
+ fZelectron[9] = 3.; //for E> fZelectron[9] parameters calculated at fZelectron[9]
+
+ //charged hadrons gaus
+
+ fZcharged[0] = 0.46 ; fZcharged[1] =-0.65 ; fZcharged[2] = 0.52 ;//constant
+ fZcharged[3] = 1.1E-2 ; fZcharged[4] = 0. ; fZcharged[5] = 0. ;//mean
+ fZcharged[6] = 0.60 ; fZcharged[7] =-8.2E-2 ; fZcharged[8] = 0.45 ;//sigma
+ fZcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9]
+
+ //Threshold to differentiate between charged and neutral
+ fChargedNeutralThreshold = 1e-5;
+ fTOFEnThreshold = 2; //Maximum energy to use TOF
+ fDispEnThreshold = 0.5; //Minimum energy to use shower shape
+ fDispMultThreshold = 3; //Minimum multiplicity to use shower shape
+
+ //Weight to hadrons recontructed energy
+
+ fERecWeightPar[0] = 0.32 ;
+ fERecWeightPar[1] = 3.8 ;
+ fERecWeightPar[2] = 5.4E-3 ;
+ fERecWeightPar[3] = 5.6E-2 ;
+ fERecWeight = new TFormula("Weight for hadrons" , "[0]*exp(-x*[1])+[2]*exp(-x*[3])") ;
+ fERecWeight ->SetParameters(fERecWeightPar[0],fERecWeightPar[1] ,fERecWeightPar[2] ,fERecWeightPar[3]) ;
+
+
+ for (Int_t i =0; i< AliPID::kSPECIESN ; i++)
+ fInitPID[i] = 1.;
+
}
//________________________________________________________________________
// for the event range from fFirstEvent to fLastEvent.
// This range is optionally set by SetEventRange().
// if fLastEvent=-1 (by default), then process events until the end.
-
+
if(strstr(option,"tim"))
gBenchmark->Start("PHOSPID");
}
- AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
if (fLastEvent == -1)
fLastEvent = gime->MaxEvent() - 1 ;
gime->Event(ievent,"TR") ;
if(gime->TrackSegments() && //Skip events, where no track segments made
gime->TrackSegments()->GetEntriesFast()) {
+
MakeRecParticles() ;
+
+ if(fBayesian)
+ MakePID() ;
+
WriteRecParticles();
if(strstr(option,"deb"))
PrintRecParticles(option) ;
fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ;
}
}
+ if(strstr(option,"deb"))
+ PrintRecParticles(option);
if(strstr(option,"tim")){
gBenchmark->Stop("PHOSPID");
- Info("Exec", "took %f seconds for PID %f seconds per event",
+ AliInfo(Form("took %f seconds for PID %f seconds per event",
gBenchmark->GetCpuTime("PHOSPID"),
- gBenchmark->GetCpuTime("PHOSPID")/nEvents) ;
+ gBenchmark->GetCpuTime("PHOSPID")/nEvents)) ;
}
+ if(fWrite)
+ Unload();
+}
+
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par)
+{
+ //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
+ //this method returns a density probability of this parameter, given by a gaussian
+ //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b
+ //Float_t xorg = x;
+ if (x > par[9]) x = par[9];
+
+ //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ;
+ Double_t cnt = par[0] + par[1] * x + par[2] * x * x ;
+ Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
+ Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
- Unload();
+// if(xorg > 30)
+// cout<<"En_in = "<<xorg<<"; En_out = "<<x<<"; cnt = "<<cnt
+// <<"; mean = "<<mean<<"; sigma = "<<sigma<<endl;
+
+ // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ;
+ // return cnt * TMath::Exp(arg) ;
+ if(TMath::Abs(sigma) > 1.e-10){
+ return cnt*TMath::Gaus(y,mean,sigma);
+ }
+ else
+ return 0.;
+
+}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par)
+{
+ //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
+ //this method returns a density probability of this parameter, given by a gaussian
+ //function whose parameters depend with the energy like second order polinomial
+
+ Double_t cnt = par[0] + par[1] * x + par[2] * x * x ;
+ Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
+ Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
+
+ if(TMath::Abs(sigma) > 1.e-10){
+ return cnt*TMath::Gaus(y,mean,sigma);
+ }
+ else
+ return 0.;
+
+
+
}
//____________________________________________________________________________
//Get file name that contains the PCA for a particle ("photon or pi0")
particle.ToLower();
TString name;
- if (particle=="photon") name = fFileNamePrincipalPhoton ;
- else if (particle=="pi0" ) name = fFileNamePrincipalPi0 ;
- else Error("GetFileNamePrincipal","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+ if (particle=="photon")
+ name = fFileNamePrincipalPhoton ;
+ else if (particle=="pi0" )
+ name = fFileNamePrincipalPi0 ;
+ else
+ AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
+ particle.Data()));
return name;
}
{
// Get the i-th parameter "Calibration"
Float_t param = 0.;
- if (i>2 || i<0)
- Error("GetParameterCalibration","Invalid parameter number: %d",i);
- else
+ if (i>2 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else
param = (*fParameters)(0,i);
return param;
}
{
// Get the i-th parameter "CPV-EMC distance" for the specified axis
Float_t param = 0.;
- if(i>2 || i<0)
- Error("GetParameterCpv2Emc","Invalid parameter number: %d",i);
- else {
+ if(i>2 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else {
axis.ToLower();
- if (axis == "x") param = (*fParameters)(1,i);
- else if (axis == "z") param = (*fParameters)(2,i);
- else Error("GetParameterCpv2Emc","Invalid axis name: %s",axis.Data());
+ if (axis == "x")
+ param = (*fParameters)(1,i);
+ else if (axis == "z")
+ param = (*fParameters)(2,i);
+ else {
+ AliError(Form("Invalid axis name: %s",axis.Data()));
+ }
}
return param;
}
else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1);
}
- value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ if (particle == "photon")
+ value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ else if (particle == "pi0")
+ value = p[0] + p[1]*e + p[2]*e*e;
+
return value;
}
// Get the parameter "i" to calculate the boundary on the moment M2x
// for photons at high p_T
Float_t param = 0;
- if (i>3 || i<0)
- Error("GetParameterPhotonBoundary","Wrong parameter number: %d\n",i);
- else
+ if (i>3 || i<0) {
+ AliError(Form("Wrong parameter number: %d\n",i));
+ } else
param = (*fParameters)(14,i) ;
return param;
}
// Get the parameter "i" to calculate the boundary on the moment M2x
// for pi0 at high p_T
Float_t param = 0;
- if (i>2 || i<0)
- Error("GetParameterPi0Boundary","Wrong parameter number: %d\n",i);
- else
+ if (i>2 || i<0) {
+ AliError(Form("Wrong parameter number: %d\n",i));
+ } else
param = (*fParameters)(15,i) ;
return param;
}
// Get TimeGate parameter depending on Purity-Efficiency i:
// i=0 - Low purity, i=1 - Medium purity, i=2 - High purity
Float_t param = 0.;
- if(i>2 || i<0)
- Error("GetParameterTimeGate","Invalid Efficiency-Purity choice %d",i);
- else
+ if(i>2 || i<0) {
+ AliError(Form("Invalid Efficiency-Purity choice %d",i));
+ } else
param = (*fParameters)(3,i) ;
return param;
}
particle.ToLower();
param. ToLower();
Int_t offset = -1;
- if (particle == "photon") offset=0;
- else if (particle == "pi0") offset=5;
+ if (particle == "photon")
+ offset=0;
+ else if (particle == "pi0")
+ offset=5;
else
- Error("GetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+ AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
+ particle.Data()));
Int_t p= -1;
Float_t par = 0;
else if(param.Contains("x0"))p=7+offset;
else if(param.Contains("y0"))p=8+offset;
- 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
+ if (i>4 || i<0) {
+ AliError(Form("No parameter with index %d", i)) ;
+ } else if (p==-1) {
+ AliError(Form("No parameter with name %s", param.Data() )) ;
+ } else
par = (*fParameters)(p,i) ;
return par;
//____________________________________________________________________________
-Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * axis)const
+Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const
{
// Calculates the distance between the EMC RecPoint and the PPSD RecPoint
if(cpv){
emc->GetLocalPosition(vecEmc) ;
cpv->GetLocalPosition(vecCpv) ;
+
if(emc->GetPHOSMod() == cpv->GetPHOSMod()){
// Correct to difference in CPV and EMC position due to different distance to center.
// we assume, that particle moves from center
return 100000000 ;
}
//____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Int_t effPur, Float_t e) const
+Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const
{
+ //Calculates the pid bit for the CPV selection per each purity.
if(effPur>2 || effPur<0)
- Error("GetCPVBit","Invalid Efficiency-Purity choice %d",effPur);
+ AliError(Form("Invalid Efficiency-Purity choice %d",effPur));
Float_t sigX = GetCpv2EmcDistanceCut("X",e);
Float_t sigZ = GetCpv2EmcDistanceCut("Z",e);
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)))
+ //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ) ;
+
+ //if(deltaX>sigX*(effPur+1))
+ //if((deltaX>sigX*(effPur+1)) || (deltaZ>sigZ*(effPur+1)))
+ if((deltaX>sigX*(effPur+1)) && (deltaZ>sigZ*(effPur+1)))
return 1;//Neutral
else
return 0;//Charged
particle.ToLower();
Int_t prinbit = 0 ;
- Float_t a = GetEllipseParameter(particle,"a" , e);
- Float_t b = GetEllipseParameter(particle,"b" , e);
- Float_t c = GetEllipseParameter(particle,"c" , e);
+ Float_t a = GetEllipseParameter(particle,"a" , e);
+ Float_t b = GetEllipseParameter(particle,"b" , e);
+ Float_t c = GetEllipseParameter(particle,"c" , e);
Float_t x0 = GetEllipseParameter(particle,"x0", e);
Float_t y0 = GetEllipseParameter(particle,"y0", e);
if((effPur==0) && (r<9./2.)) prinbit= 1;
if(r<0)
- Error("GetPrincipalBit", "Negative square?") ;
+ AliError("Negative square?") ;
return prinbit;
TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/
TMath::Power(GetParameterPhotonBoundary(2),2)) +
GetParameterPhotonBoundary(3);
- Info("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ AliDebug(1, Form("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",
+ e,m2x,m2xBoundary));
if (m2x < m2xBoundary)
return 1;// A hard photon
else
Float_t m2x = emc->GetM2x();
Float_t m2xBoundary = GetParameterPi0Boundary(0) +
e * GetParameterPi0Boundary(1);
- Info("GetHardPi0Bit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary));
if (m2x > m2xBoundary)
return 1;// A hard pi0
else
}
//____________________________________________________________________________
-TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )const
+TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const
{
// Calculates the momentum direction:
// 1. if only a EMC RecPoint, direction is given by IP and this RecPoint
// in case 1.
TVector3 dir(0,0,0) ;
+ TMatrixF dummy ;
- TVector3 emcglobalpos ;
- TMatrix dummy ;
-
- emc->GetGlobalPosition(emcglobalpos, dummy) ;
-
-
- dir = emcglobalpos ;
- dir.SetZ( -dir.Z() ) ; // why ?
- dir.SetMag(1.) ;
+ emc->GetGlobalPosition(dir, dummy) ;
//account correction to the position of IP
Float_t xo,yo,zo ; //Coordinates of the origin
- gAlice->Generator()->GetOrigin(xo,yo,zo) ;
+ if(gAlice && gAlice->GetMCApp() && gAlice->Generator()){
+ gAlice->Generator()->GetOrigin(xo,yo,zo) ;
+ }
+ else{
+ xo=yo=zo=0.;
+ }
TVector3 origin(xo,yo,zo);
dir = dir - origin ;
+ dir.SetMag(1.) ;
return dir ;
}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par)
+{
+ //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
+ //this method returns a density probability of this parameter, given by a landau
+ //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b
+
+ if (x > par[9]) x = par[9];
+
+ //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ;
+ Double_t cnt = par[0] + par[1] * x + par[2] * x * x ;
+ Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
+ Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
+
+ if(TMath::Abs(sigma) > 1.e-10){
+ return cnt*TMath::Landau(y,mean,sigma);
+ }
+ else
+ return 0.;
+
+}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par)
+{
+
+ //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
+ //this method returns a density probability of this parameter, given by a landau
+ //function whose parameters depend with the energy like second order polinomial
+
+ Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ Double_t mean = par[5] * (x*x) + par[4] * x + par[3] ;
+ Double_t sigma = par[8] * (x*x) + par[7] * x + par[6] ;
+
+ if(TMath::Abs(sigma) > 1.e-10){
+ return cnt*TMath::Landau(y,mean,sigma);
+ }
+ else
+ return 0.;
+
+
+}
+// //________________________________________________________________________
+// Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl)
+// {
+// Double_t cnt = 0.0 ;
+// Double_t mean = 0.0 ;
+// Double_t sigma = 0.0 ;
+// Double_t arg = 0.0 ;
+// if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){
+// cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ;
+// mean = parg[4] / (x*x) + parg[5] / x + parg[3] ;
+// sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ;
+// TF1 * f = new TF1("gaus","gaus",0.,100.);
+// f->SetParameters(cnt,mean,sigma);
+// arg = f->Eval(y) ;
+// }
+// else{
+// cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ;
+// mean = parl[4] / (x*x) + parl[5] / x + parl[3] ;
+// sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ;
+// TF1 * f = new TF1("landau","landau",0.,100.);
+// f->SetParameters(cnt,mean,sigma);
+// arg = f->Eval(y) ;
+// }
+// // Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
+// // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
+
+// //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ;
+// //return cnt * TMath::Exp(arg) ;
+
+// return arg;
+
+// }
+//____________________________________________________________________________
+void AliPHOSPIDv1::MakePID()
+{
+ // construct the PID weight from a Bayesian Method
+
+ const Int_t kSPECIES = AliPID::kSPECIESN ;
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+
+ Int_t nparticles = gime->RecParticles()->GetEntriesFast() ;
+
+ TObjArray * emcRecPoints = gime->EmcRecPoints() ;
+ TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
+ TClonesArray * trackSegments = gime->TrackSegments() ;
+ if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
+ AliFatal("RecPoints or TrackSegments not found !") ;
+ }
+ TIter next(trackSegments) ;
+ AliPHOSTrackSegment * ts ;
+ Int_t index = 0 ;
+
+ Double_t * stof[kSPECIES] ;
+ Double_t * sdp [kSPECIES] ;
+ Double_t * scpv[kSPECIES] ;
+ Double_t * sw [kSPECIES] ;
+ //Info("MakePID","Begin MakePID");
+
+ for (Int_t i =0; i< kSPECIES; i++){
+ stof[i] = new Double_t[nparticles] ;
+ sdp [i] = new Double_t[nparticles] ;
+ scpv[i] = new Double_t[nparticles] ;
+ sw [i] = new Double_t[nparticles] ;
+ }
+
+
+ while ( (ts = (AliPHOSTrackSegment *)next()) ) {
+
+ //cout<<">>>>>> Bayesian Index "<<index<<endl;
+
+ AliPHOSEmcRecPoint * emc = 0 ;
+ if(ts->GetEmcIndex()>=0)
+ emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
+
+ AliPHOSCpvRecPoint * cpv = 0 ;
+ if(ts->GetCpvIndex()>=0)
+ cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
+
+// Int_t track = 0 ;
+// track = ts->GetTrackIndex() ; //TPC tracks ?
+
+ if (!emc) {
+ AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ;
+ }
+
+
+ // ############Tof#############################
+
+ // Info("MakePID", "TOF");
+ Float_t en = emc->GetEnergy();
+ Double_t time = emc->GetTime() ;
+ // cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl;
+
+ // now get the signals probability
+ // s(pid) in the Bayesian formulation
+
+ stof[AliPID::kPhoton][index] = 1.;
+ stof[AliPID::kElectron][index] = 1.;
+ stof[AliPID::kEleCon][index] = 1.;
+ //We assing the same prob to charged hadrons, sum is 1
+ stof[AliPID::kPion][index] = 1./3.;
+ stof[AliPID::kKaon][index] = 1./3.;
+ stof[AliPID::kProton][index] = 1./3.;
+ //We assing the same prob to neutral hadrons, sum is 1
+ stof[AliPID::kNeutron][index] = 1./2.;
+ stof[AliPID::kKaon0][index] = 1./2.;
+ stof[AliPID::kMuon][index] = 1.;
+
+ if(en < fTOFEnThreshold) {
+
+ Double_t pTofPion = fTFpiong ->Eval(time) ; //gaus distribution
+ Double_t pTofKaon = 0;
+
+ if(time < fTkaonl[1])
+ pTofKaon = fTFkaong ->Eval(time) ; //gaus distribution
+ else
+ pTofKaon = fTFkaonl ->Eval(time) ; //landau distribution
+
+ Double_t pTofNucleon = 0;
+
+ if(time < fThhadronl[1])
+ pTofNucleon = fTFhhadrong ->Eval(time) ; //gaus distribution
+ else
+ pTofNucleon = fTFhhadronl ->Eval(time) ; //landau distribution
+ //We assing the same prob to neutral hadrons, sum is the average prob
+ Double_t pTofNeHadron = (pTofKaon + pTofNucleon)/2. ;
+ //We assing the same prob to charged hadrons, sum is the average prob
+ Double_t pTofChHadron = (pTofPion + pTofKaon + pTofNucleon)/3. ;
+
+ stof[AliPID::kPhoton][index] = fTFphoton ->Eval(time) ;
+ //gaus distribution
+ stof[AliPID::kEleCon][index] = stof[AliPID::kPhoton][index] ;
+ //a conversion electron has the photon ToF
+ stof[AliPID::kMuon][index] = stof[AliPID::kPhoton][index] ;
+
+ stof[AliPID::kElectron][index] = pTofPion ;
+
+ stof[AliPID::kPion][index] = pTofChHadron ;
+ stof[AliPID::kKaon][index] = pTofChHadron ;
+ stof[AliPID::kProton][index] = pTofChHadron ;
+
+ stof[AliPID::kKaon0][index] = pTofNeHadron ;
+ stof[AliPID::kNeutron][index] = pTofNeHadron ;
+ }
+
+ // Info("MakePID", "Dispersion");
+
+ // ###########Shower shape: Dispersion####################
+ Float_t dispersion = emc->GetDispersion();
+ //dispersion is not well defined if the cluster is only in few crystals
+
+ sdp[AliPID::kPhoton][index] = 1. ;
+ sdp[AliPID::kElectron][index] = 1. ;
+ sdp[AliPID::kPion][index] = 1. ;
+ sdp[AliPID::kKaon][index] = 1. ;
+ sdp[AliPID::kProton][index] = 1. ;
+ sdp[AliPID::kNeutron][index] = 1. ;
+ sdp[AliPID::kEleCon][index] = 1. ;
+ sdp[AliPID::kKaon0][index] = 1. ;
+ sdp[AliPID::kMuon][index] = 1. ;
+
+ if(en > fDispEnThreshold && emc->GetMultiplicity() > fDispMultThreshold){
+ sdp[AliPID::kPhoton][index] = GausF(en , dispersion, fDphoton) ;
+ sdp[AliPID::kElectron][index] = sdp[AliPID::kPhoton][index] ;
+ sdp[AliPID::kPion][index] = LandauF(en , dispersion, fDhadron ) ;
+ sdp[AliPID::kKaon][index] = sdp[AliPID::kPion][index] ;
+ sdp[AliPID::kProton][index] = sdp[AliPID::kPion][index] ;
+ sdp[AliPID::kNeutron][index] = sdp[AliPID::kPion][index] ;
+ sdp[AliPID::kEleCon][index] = sdp[AliPID::kPhoton][index];
+ sdp[AliPID::kKaon0][index] = sdp[AliPID::kPion][index] ;
+ sdp[AliPID::kMuon][index] = fDFmuon ->Eval(dispersion) ;
+ //landau distribution
+ }
+
+// Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(), dispersion);
+// Info("MakePID","ss: photon %f, hadron %f ", sdp[AliPID::kPhoton][index], sdp[AliPID::kPion][index]);
+// cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<", dispersion "<< dispersion<<endl ;
+// cout<<"<<<<<ss: photon "<<sdp[AliPID::kPhoton][index]<<", hadron "<<sdp[AliPID::kPion][index]<<endl;
+
+ //########## CPV-EMC Distance#######################
+ // Info("MakePID", "Distance");
+
+ Float_t x = TMath::Abs(GetDistance(emc, cpv, "X")) ;
+ Float_t z = GetDistance(emc, cpv, "Z") ;
+
+ Double_t pcpv = 0 ;
+ Double_t pcpvneutral = 0. ;
+
+ Double_t elprobx = GausF(en , x, fXelectron) ;
+ Double_t elprobz = GausF(en , z, fZelectron) ;
+ Double_t chprobx = GausF(en , x, fXcharged) ;
+ Double_t chprobz = GausF(en , z, fZcharged) ;
+ Double_t pcpvelectron = elprobx * elprobz;
+ Double_t pcpvcharged = chprobx * chprobz;
+
+// cout<<">>>>energy "<<en<<endl;
+// cout<<">>>>electron : x "<<x<<" xprob "<<elprobx<<" z "<<z<<" zprob "<<elprobz<<endl;
+// cout<<">>>>hadron : x "<<x<<" xprob "<<chprobx<<" z "<<z<<" zprob "<<chprobz<<endl;
+// cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl;
+
+ // Is neutral or charged?
+ if(pcpvelectron >= pcpvcharged)
+ pcpv = pcpvelectron ;
+ else
+ pcpv = pcpvcharged ;
+
+ if(pcpv < fChargedNeutralThreshold)
+ {
+ pcpvneutral = 1. ;
+ pcpvcharged = 0. ;
+ pcpvelectron = 0. ;
+ }
+ // else
+ // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl;
+
+ scpv[AliPID::kPion][index] = pcpvcharged ;
+ scpv[AliPID::kKaon][index] = pcpvcharged ;
+ scpv[AliPID::kProton][index] = pcpvcharged ;
+
+ scpv[AliPID::kMuon][index] = pcpvelectron ;
+ scpv[AliPID::kElectron][index] = pcpvelectron ;
+ scpv[AliPID::kEleCon][index] = pcpvelectron ;
+
+ scpv[AliPID::kPhoton][index] = pcpvneutral ;
+ scpv[AliPID::kNeutron][index] = pcpvneutral ;
+ scpv[AliPID::kKaon0][index] = pcpvneutral ;
+
+
+ // Info("MakePID", "CPV passed");
+
+ //############## Pi0 #############################
+ stof[AliPID::kPi0][index] = 0. ;
+ scpv[AliPID::kPi0][index] = 0. ;
+ sdp [AliPID::kPi0][index] = 0. ;
+
+ if(en > 30.){
+ // pi0 are detected via decay photon
+ stof[AliPID::kPi0][index] = stof[AliPID::kPhoton][index];
+ scpv[AliPID::kPi0][index] = pcpvneutral ;
+ if(emc->GetMultiplicity() > fDispMultThreshold)
+ sdp [AliPID::kPi0][index] = GausF(en , dispersion, fDpi0) ;
+ //sdp [AliPID::kPi0][index] = GausPol2(en , dispersion, fDpi0) ;
+// cout<<"E = "<<en<<" GeV; disp = "<<dispersion<<"; mult = "
+// <<emc->GetMultiplicity()<<endl;
+// cout<<"PDF: photon = "<<sdp [AliPID::kPhoton][index]<<"; pi0 = "
+// <<sdp [AliPID::kPi0][index]<<endl;
+ }
+
+
+
+
+ //############## muon #############################
+
+ if(en > 0.5){
+ //Muons deposit few energy
+ scpv[AliPID::kMuon][index] = 0 ;
+ stof[AliPID::kMuon][index] = 0 ;
+ sdp [AliPID::kMuon][index] = 0 ;
+ }
+
+ //Weight to apply to hadrons due to energy reconstruction
+
+ Float_t weight = fERecWeight ->Eval(en) ;
+
+ sw[AliPID::kPhoton][index] = 1. ;
+ sw[AliPID::kElectron][index] = 1. ;
+ sw[AliPID::kPion][index] = weight ;
+ sw[AliPID::kKaon][index] = weight ;
+ sw[AliPID::kProton][index] = weight ;
+ sw[AliPID::kNeutron][index] = weight ;
+ sw[AliPID::kEleCon][index] = 1. ;
+ sw[AliPID::kKaon0][index] = weight ;
+ sw[AliPID::kMuon][index] = weight ;
+ sw[AliPID::kPi0][index] = 1. ;
+
+// if(en > 0.5){
+// cout<<"######################################################"<<endl;
+// //cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ;
+// cout<<"MakePID: energy "<<en<<", tof "<<time<<", dispersion "<<dispersion<<", x "<<x<<", z "<<z<<endl ;
+// cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<endl;
+// cout<<">>>>electron : xprob "<<elprobx<<" zprob "<<elprobz<<endl;
+// cout<<">>>>hadron : xprob "<<chprobx<<" zprob "<<chprobz<<endl;
+// cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl;
+
+// cout<<"Photon , pid "<< fInitPID[AliPID::kPhoton]<<" tof "<<stof[AliPID::kPhoton][index]
+// <<", cpv "<<scpv[AliPID::kPhoton][index]<<", ss "<<sdp[AliPID::kPhoton][index]<<endl;
+// cout<<"EleCon , pid "<< fInitPID[AliPID::kEleCon]<<", tof "<<stof[AliPID::kEleCon][index]
+// <<", cpv "<<scpv[AliPID::kEleCon][index]<<" ss "<<sdp[AliPID::kEleCon][index]<<endl;
+// cout<<"Electron , pid "<< fInitPID[AliPID::kElectron]<<", tof "<<stof[AliPID::kElectron][index]
+// <<", cpv "<<scpv[AliPID::kElectron][index]<<" ss "<<sdp[AliPID::kElectron][index]<<endl;
+// cout<<"Muon , pid "<< fInitPID[AliPID::kMuon]<<", tof "<<stof[AliPID::kMuon][index]
+// <<", cpv "<<scpv[AliPID::kMuon][index]<<" ss "<<sdp[AliPID::kMuon][index]<<endl;
+// cout<<"Pi0 , pid "<< fInitPID[AliPID::kPi0]<<", tof "<<stof[AliPID::kPi0][index]
+// <<", cpv "<<scpv[AliPID::kPi0][index]<<" ss "<<sdp[AliPID::kPi0][index]<<endl;
+// cout<<"Pion , pid "<< fInitPID[AliPID::kPion]<<", tof "<<stof[AliPID::kPion][index]
+// <<", cpv "<<scpv[AliPID::kPion][index]<<" ss "<<sdp[AliPID::kPion][index]<<endl;
+// cout<<"Kaon0 , pid "<< fInitPID[AliPID::kKaon0]<<", tof "<<stof[AliPID::kKaon0][index]
+// <<", cpv "<<scpv[AliPID::kKaon0][index]<<" ss "<<sdp[AliPID::kKaon0][index]<<endl;
+// cout<<"Kaon , pid "<< fInitPID[AliPID::kKaon]<<", tof "<<stof[AliPID::kKaon][index]
+// <<", cpv "<<scpv[AliPID::kKaon][index]<<" ss "<<sdp[AliPID::kKaon][index]<<endl;
+// cout<<"Neutron , pid "<< fInitPID[AliPID::kNeutron]<<", tof "<<stof[AliPID::kNeutron][index]
+// <<", cpv "<<scpv[AliPID::kNeutron][index]<<" ss "<<sdp[AliPID::kNeutron][index]<<endl;
+// cout<<"Proton , pid "<< fInitPID[AliPID::kProton]<<", tof "<<stof[AliPID::kProton][index]
+// <<", cpv "<<scpv[AliPID::kProton][index]<<" ss "<<sdp[AliPID::kProton][index]<<endl;
+// cout<<"######################################################"<<endl;
+// }
+ index++;
+ }
+
+ //for (index = 0 ; index < kSPECIES ; index++)
+ // pid[index] /= nparticles ;
+
+
+ // Info("MakePID", "Total Probability calculation");
+
+ for(index = 0 ; index < nparticles ; index ++) {
+
+ AliPHOSRecParticle * recpar = gime->RecParticle(index) ;
+
+ //Conversion electron?
+
+ if(recpar->IsEleCon()){
+ fInitPID[AliPID::kEleCon] = 1. ;
+ fInitPID[AliPID::kPhoton] = 0. ;
+ fInitPID[AliPID::kElectron] = 0. ;
+ }
+ else{
+ fInitPID[AliPID::kEleCon] = 0. ;
+ fInitPID[AliPID::kPhoton] = 1. ;
+ fInitPID[AliPID::kElectron] = 1. ;
+ }
+ // fInitPID[AliPID::kEleCon] = 0. ;
+
+
+ // calculates the Bayesian weight
+
+ Int_t jndex ;
+ Double_t wn = 0.0 ;
+ for (jndex = 0 ; jndex < kSPECIES ; jndex++)
+ wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] *
+ sw[jndex][index] * fInitPID[jndex] ;
+
+ // cout<<"*************wn "<<wn<<endl;
+ if (TMath::Abs(wn)>0)
+ for (jndex = 0 ; jndex < kSPECIES ; jndex++) {
+ //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn"
+ //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl;
+ //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl;
+ // if(jndex == AliPID::kPi0 || jndex == AliPID::kPhoton){
+ // cout<<"Particle "<<jndex<<" final prob * wn "
+ // <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] *
+ // fInitPID[jndex] <<" wn "<< wn<<endl;
+ // cout<<"pid "<< fInitPID[jndex]<<", tof "<<stof[jndex][index]
+ // <<", cpv "<<scpv[jndex][index]<<" ss "<<sdp[jndex][index]<<endl;
+ // }
+ recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] *
+ sw[jndex][index] * scpv[jndex][index] *
+ fInitPID[jndex] / wn) ;
+ }
+ }
+ // Info("MakePID", "Delete");
+
+ for (Int_t i =0; i< kSPECIES; i++){
+ delete [] stof[i];
+ delete [] sdp [i];
+ delete [] scpv[i];
+ delete [] sw [i];
+ }
+ // Info("MakePID","End MakePID");
+}
+
//____________________________________________________________________________
void AliPHOSPIDv1::MakeRecParticles()
{
TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
TClonesArray * trackSegments = gime->TrackSegments() ;
if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
- Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ;
+ AliFatal("RecPoints or TrackSegments not found !") ;
}
TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Clear();
Int_t index = 0 ;
AliPHOSRecParticle * rp ;
while ( (ts = (AliPHOSTrackSegment *)next()) ) {
-
+ // cout<<">>>>>>>>>>>>>>>PCA Index "<<index<<endl;
new( (*recParticles)[index] ) AliPHOSRecParticle() ;
rp = (AliPHOSRecParticle *)recParticles->At(index) ;
rp->SetTrackSegment(index) ;
if(ts->GetEmcIndex()>=0)
emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
- AliPHOSRecPoint * cpv = 0 ;
+ AliPHOSCpvRecPoint * cpv = 0 ;
if(ts->GetCpvIndex()>=0)
- cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
+ cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
+ Int_t track = 0 ;
+ track = ts->GetTrackIndex() ;
+
// Now set type (reconstructed) of the particle
// Choose the cluster energy range
if (!emc) {
- Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ;
+ AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ;
}
Float_t e = emc->GetEnergy() ;
// 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 spher = 0. ;
+ Float_t emaxdtotal = 0. ;
if((lambda[0]+lambda[1])!=0)
- Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
+ 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() ;
fPrincipalPhoton->X2P(fX,fPPhoton);
fPPi0[1] =-100.0;
}
- Float_t time =emc->GetTime() ;
+ Float_t time = emc->GetTime() ;
+ rp->SetTof(time) ;
// Loop of Efficiency-Purity (the 3 points of purity or efficiency
// are taken into account to set the particle identification)
// 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, effPur,e) == 1 )
+ if(GetCPVBit(emc, cpv, effPur,e) == 1 ){
rp->SetPIDBit(effPur) ;
-
+ //cout<<"CPV bit "<<effPur<<endl;
+ }
// 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,effPur))
+ if(time< (*fParameters)(3,effPur))
rp->SetPIDBit(effPur+3) ;
-
+
//Photon PCA
//If we are inside the ellipse, 7th, 8th or 9th
// bit (depending on the efficiency-purity point )is set to 1
if(GetHardPi0Bit (emc))
rp->SetPIDBit(13) ;
+ if(track >= 0)
+ rp->SetPIDBit(14) ;
+
//Set momentum, energy and other parameters
Float_t encal = GetCalibratedEnergy(e);
TVector3 dir = GetMomentumDirection(emc,cpv) ;
TVector3 pos ;
geom->GetGlobal(erp, pos) ;
rp->SetPos(pos);
-
index++ ;
}
}
//____________________________________________________________________________
-void AliPHOSPIDv1::Print() const
+void AliPHOSPIDv1::Print(const Option_t *) const
{
// Print the parameters used for the particle type identification
- Info("Print", "=============== AliPHOSPIDv1 ================") ;
+ AliInfo("=============== AliPHOSPIDv1 ================") ;
printf("Making PID\n") ;
printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ;
printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ;
message += rp->GetType() ;
}
}
- Info("Print", message.Data() ) ;
+ AliInfo(message.Data() ) ;
}
//____________________________________________________________________________
// lines 14-15: parameters to calculate border for high-pt photons and pi0
fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
- fParameters = new TMatrix(16,4) ;
- const Int_t maxLeng=255;
- char string[maxLeng];
+ fParameters = new TMatrixF(16,4) ;
+ const Int_t kMaxLeng=255;
+ char string[kMaxLeng];
// Open a text file with PID parameters
FILE *fd = fopen(fFileNameParameters.Data(),"r");
if (!fd)
- Fatal("SetParameter","File %s with a PID parameters cannot be opened\n",
- fFileNameParameters.Data());
+ AliFatal(Form("File %s with a PID parameters cannot be opened\n",
+ fFileNameParameters.Data()));
Int_t i=0;
// Read parameter file line-by-line and skip empty line and comments
- while (fgets(string,maxLeng,fd) != NULL) {
+ while (fgets(string,kMaxLeng,fd) != NULL) {
if (string[0] == '\n' ) continue;
if (string[0] == '!' ) continue;
sscanf(string, "%f %f %f %f",
&(*fParameters)(i,0), &(*fParameters)(i,1),
&(*fParameters)(i,2), &(*fParameters)(i,3));
i++;
- //printf("line %d: %s",i,string);
+ AliDebug(1, Form("SetParameters", "line %d: %s",i,string));
}
fclose(fd);
}
void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param)
{
// Set parameter "Calibration" i to a value param
- if(i>2 || i<0)
- Error("SetParameterCalibration","Invalid parameter number: %d",i);
- else
+ if(i>2 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else
(*fParameters)(0,i) = param ;
}
// Set the parameters to calculate Cpv-to-Emc Distance Cut depending on
// Purity-Efficiency point i
- if(i>2 || i<0)
- Error("SetParameterCpv2Emc","Invalid parameter number: %d",i);
- else {
+ if(i>2 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else {
axis.ToLower();
if (axis == "x") (*fParameters)(1,i) = cut;
else if (axis == "z") (*fParameters)(2,i) = cut;
- else Error("SetParameterCpv2Emc","Invalid axis name: %s",axis.Data());
+ else {
+ AliError(Form("Invalid axis name: %s",axis.Data()));
+ }
}
}
void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param)
{
// Set parameter "Hard photon boundary" i to a value param
- if(i>4 || i<0)
- Error("SetParameterPhotonBoundary","Invalid parameter number: %d",i);
- else
+ if(i>4 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else
(*fParameters)(14,i) = param ;
}
void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param)
{
// Set parameter "Hard pi0 boundary" i to a value param
- if(i>1 || i<0)
- Error("SetParameterPi0Boundary","Invalid parameter number: %d",i);
- else
+ if(i>1 || i<0) {
+ AliError(Form("Invalid parameter number: %d",i));
+ } else
(*fParameters)(15,i) = param ;
}
void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate)
{
// Set the parameter TimeGate depending on Purity-Efficiency point i
- if (i>2 || i<0)
- Error("SetParameterTimeGate","Invalid Efficiency-Purity choice %d",i);
- else
+ if (i>2 || i<0) {
+ AliError(Form("Invalid Efficiency-Purity choice %d",i));
+ } else
(*fParameters)(3,i)= gate ;
}
if (particle == "photon") offset=0;
else if (particle == "pi0") offset=5;
else
- Error("SetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data());
+ AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
+ particle.Data()));
if (param.Contains("a")) p=4+offset;
else if(param.Contains("b")) p=5+offset;
else if(param.Contains("c")) p=6+offset;
else if(param.Contains("x0"))p=7+offset;
else if(param.Contains("y0"))p=8+offset;
- 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
+ if((i>4)||(i<0)) {
+ AliError(Form("No parameter with index %d", i)) ;
+ } else if(p==-1) {
+ AliError(Form("No parameter with name %s", param.Data() )) ;
+ } else
(*fParameters)(p,i) = par ;
}
//____________________________________________________________________________
void AliPHOSPIDv1::Unload()
{
+ //Unloads RecPoints, Tracks and RecParticles
AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
gime->PhosLoader()->UnloadRecPoints() ;
gime->PhosLoader()->UnloadTracks() ;
//____________________________________________________________________________
void AliPHOSPIDv1::WriteRecParticles()
{
-
+ //It writes reconstructed particles and pid to file
+
AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Expand(recParticles->GetEntriesFast() ) ;
- TTree * treeP = gime->TreeP();
-
- //First rp
- Int_t bufferSize = 32000 ;
- TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
- rpBranch->SetTitle(BranchName());
-
- rpBranch->Fill() ;
-
- gime->WriteRecParticles("OVERWRITE");
- gime->WritePID("OVERWRITE");
+ if(fWrite){
+ TTree * treeP = gime->TreeP();
+
+ //First rp
+ Int_t bufferSize = 32000 ;
+ TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
+ rpBranch->SetTitle(BranchName());
+
+ rpBranch->Fill() ;
+
+ gime->WriteRecParticles("OVERWRITE");
+ gime->WritePID("OVERWRITE");
+ }
}
+
+//_______________________________________________________________________
+void AliPHOSPIDv1::SetInitPID(const Double_t *p) {
+ // Sets values for the initial population of each particle type
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) fInitPID[i] = p[i];
+}
+//_______________________________________________________________________
+void AliPHOSPIDv1::GetInitPID(Double_t *p) const {
+ // Gets values for the initial population of each particle type
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i] = fInitPID[i];
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff