/* $Id$ */
+/* 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 "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
// 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] = 0.218 ;
- //fTphoton[0] = 1. ;
+ fTphoton[0] = 7.83E8 ;
fTphoton[1] = 1.55E-8 ;
- fTphoton[2] = 5.05E-10 ;
+ fTphoton[2] = 5.09E-10 ;
fTFphoton = new TFormula("ToF response to photons" , "gaus") ;
fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ;
-// // Electrons
-// fTelectron[0] = 0.2 ;
-// fTelectron[1] = 1.55E-8 ;
-// fTelectron[2] = 5.35E-10 ;
-// fTFelectron = new TFormula("ToF response to electrons" , "gaus") ;
-// fTFelectron->SetParameters( fTelectron[0], fTelectron[1], fTelectron[2]) ;
-// // Muons
-// fTmuon[0] = 0.2 ;
-// fTmuon[1] = 1.55E-8 ;
-// fTmuon[2] = 5.1E-10 ;
-// fTFmuon = new TFormula("ToF response to muons" , "gaus") ;
-// fTFmuon->SetParameters( fTmuon[0], fTmuon[1], fTmuon[2]) ;
// Pions
//Gaus (0 to max probability)
- fTpiong[0] = 0.0971 ;
- //fTpiong[0] = 1. ;
+ fTpiong[0] = 6.73E8 ;
fTpiong[1] = 1.58E-8 ;
- fTpiong[2] = 5.69E-10 ;
+ fTpiong[2] = 5.87E-10 ;
fTFpiong = new TFormula("ToF response to pions" , "gaus") ;
fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ;
- // Landau (max probability to inf)
-// fTpionl[0] = 0.05 ;
-// //fTpionl[0] = 5.53 ;
-// fTpionl[1] = 1.68E-8 ;
-// fTpionl[2] = 5.38E-10 ;
-// fTFpionl = new TFormula("ToF response to pions" , "landau") ;
-// fTFpionl->SetParameters( fTpionl[0], fTpionl[1], fTpionl[2]) ;
-
// Kaons
//Gaus (0 to max probability)
- fTkaong[0] = 0.0542 ;
- //fTkaong[0] = 1. ;
+ fTkaong[0] = 3.93E8 ;
fTkaong[1] = 1.64E-8 ;
- fTkaong[2] = 6.07-10 ;
+ 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[0] = 5.53 ;
+ fTkaonl[0] = 2.0E9 ;
fTkaonl[1] = 1.68E-8 ;
fTkaonl[2] = 4.10E-10 ;
fTFkaonl = new TFormula("ToF response to kaon" , "landau") ;
//Heavy Hadrons
//Gaus (0 to max probability)
- fThhadrong[0] = 0.0302 ;
- //fThhadrong[0] = 1. ;
+ 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] = 0.139 ;
- //fThhadronl[0] = 5.53 ;
- fThhadronl[1] = 1.745E-8 ;
- fThhadronl[2] = 1.00E-9 ;
+ 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]) ;
-/// /gaussian parametrization for pions
-// fTpion[0] = 3.93E-2 ; fTpion[1] = 0.130 ; fTpion[2] =-6.37E-2 ;//constant
-// fTpion[3] = 1.65E-8 ; fTpion[4] =-1.40E-9 ; fTpion[5] = 5.96E-10;//mean
-// fTpion[6] = 8.09E-10; fTpion[7] =-4.65E-10; fTpion[8] = 1.50E-10;//sigma
-
-// //landau parametrization for kaons
-// fTkaon[0] = 0.107 ; fTkaon[1] = 0.166 ; fTkaon[2] = 0.243 ;//constant
-// fTkaon[3] = 1.80E-8 ; fTkaon[4] =-2.96E-9 ; fTkaon[5] = 9.60E-10;//mean
-// fTkaon[6] = 1.37E-9 ; fTkaon[7] =-1.80E-9 ; fTkaon[8] = 6.74E-10;//sigma
-
-// //landau parametrization for nucleons
-// fThhadron[0] = 6.33E-2 ; fThhadron[1] = 2.52E-2 ; fThhadron[2] = 2.16E-2 ;//constant
-// fThhadron[3] = 1.94E-8 ; fThhadron[4] =-7.06E-10; fThhadron[5] =-4.69E-10;//mean
-// fThhadron[6] = 2.55E-9 ; fThhadron[7] =-1.90E-9 ; fThhadron[8] = 5.41E-10;//sigma
// Shower shape: dispersion gaussian parameters
// Photons
-
- fDphoton[0] = 0.1 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
- //fDphoton[0] = 1.0 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
- fDphoton[3] = 1.55 ; fDphoton[4] =-0.0863 ; fDphoton[5] = 0.287 ;//mean
- fDphoton[6] = 0.0451 ; fDphoton[7] =-0.0803 ; fDphoton[8] = 0.314 ;//sigma
-
- fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant
- //fDpi0[0] = 1.0 ; fDpi0[1] = 0.0 ; 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
- //landau
-// fDhadron[0] = 0.007 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
-// //fDhadron[0] = 5.53 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
-// fDhadron[3] = 3.38 ; fDhadron[4] = 0.0833 ; fDhadron[5] =-0.845 ;//mean
-// fDhadron[6] = 0.627 ; fDhadron[7] = 0.012 ; fDhadron[8] =-0.170 ;//sigma
-
- fDhadron[0] =-5.10E-3 ; fDhadron[1] =-5.35E-3 ; fDhadron[2] = 3.77E-2 ;//constant
- fDhadron[3] = 4.03 ; fDhadron[4] = 0.292 ; fDhadron[5] =-1.50 ;//mean
- fDhadron[6] = 0.958 ; fDhadron[7] = 0.117 ; fDhadron[8] =-0.598 ;//sigma
- // Muons
- fDmuon[0] = 0.0631 ;
- fDmuon[1] = 1.4 ;
+
+// 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]) ;
- // CPV-EMC distance gaussian parameters
- fCPVelectron[0] = 0.0 ; fCPVelectron[1] = 0.0160 ; fCPVelectron[2] = 0. ;//constant
- //fCPVelectron[0] = 1.0 ; fCPVelectron[1] = 0. ; fCPVelectron[2] = 0. ;//constant
- fCPVelectron[3] = 0.0682 ; fCPVelectron[4] =-1.32 ; fCPVelectron[5] = 6.67 ;//mean
- fCPVelectron[6] = 0.276 ; fCPVelectron[7] = 0.234 ; fCPVelectron[8] = 0.356 ;//sigma
+ // 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
- //all charged landau
- // fCPVcharged[0] = 0.0 ; fCPVcharged[1] = 0.0464 ; fCPVcharged[2] = 0. ;//constant
-// //fCPVcharged[0] = 5.53 ; fCPVcharged[1] = 0. ; fCPVcharged[2] = 0. ;//constant
-// fCPVcharged[3] = 0.297 ; fCPVcharged[4] =-0.652 ; fCPVcharged[5] = 1.91 ;//mean
-// fCPVcharged[6] = 0.0786 ; fCPVcharged[7] =-0.237 ; fCPVcharged[8] = 0.752 ;//sigma
-// //charged hadrons landau
-// fCPVchargedl[0] = 0.103 ; fCPVchargedl[1] = 8.84E-3 ; fCPVchargedl[2] =-2.40E-2 ;//constant
-// fCPVchargedl[3] = 2.86 ; fCPVchargedl[4] =-0.214 ; fCPVchargedl[5] = 0.817 ;//mean
-// fCPVchargedl[6] = 0.182 ; fCPVchargedl[7] =-0.0693 ; fCPVchargedl[8] = 0.319 ;//sigma
-// //charged hadrons gaus
-// fCPVchargedg[0] = 0.0135 ; fCPVchargedg[1] = 2.43E-5 ; fCPVchargedg[2] = 3.01E-3 ;//constant
-// fCPVchargedg[3] = 2.37 ; fCPVchargedg[4] =-0.181 ; fCPVchargedg[5] = 0.726 ;//mean
-// fCPVchargedg[6] = 0.908 ; fCPVchargedg[7] =-0.0558 ; fCPVchargedg[8] = 0.219 ;//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]
- //charged hadrons landau
- fCPVcharged[0] = 6.06E-2 ; fCPVcharged[1] = 3.80E-3 ; fCPVcharged[2] =-1.40E-2 ;//constant
- fCPVcharged[3] = 1.15 ; fCPVcharged[4] =-0.563 ; fCPVcharged[5] = 2.63 ;//mean
- fCPVcharged[6] = 0.915 ; fCPVcharged[7] =-0.0790 ; fCPVcharged[8] = 0.307 ;//sigma
+ // 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]
- for (Int_t i =0; i< AliESDtrack::kSPECIESN ; i++)
- fInitPID[i] = 1.;
+ //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.;
+
}
//________________________________________________________________________
gime->Event(ievent,"TR") ;
if(gime->TrackSegments() && //Skip events, where no track segments made
gime->TrackSegments()->GetEntriesFast()) {
+
MakeRecParticles() ;
if(fBayesian)
//________________________________________________________________________
Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par)
{
- Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ //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] ;
- //cout<<"c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
+
+// 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(mean != 0. && sigma/mean > 1.e-4 ){
- TF1 * f = new TF1("gaus","gaus",0,100);
- f->SetParameters(cnt,mean,sigma);
- //cout<<"gaus value "<<f->Eval(y)<<endl ;
- Double_t arg = f->Eval(y) ;
- return 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(mean != 0. && sigma/mean > 1.e-4 ){
- TF1 * f = new TF1("gaus","gaus",0,100);
- f->SetParameters(cnt,mean,sigma);
- Double_t arg = f->Eval(y) ;
- return arg;
+ if(TMath::Abs(sigma) > 1.e-10){
+ return cnt*TMath::Gaus(y,mean,sigma);
}
else
return 0.;
+
+
+
}
//____________________________________________________________________________
//____________________________________________________________________________
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)
AliError(Form("Invalid Efficiency-Purity choice %d",effPur));
Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
- //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ ) ;
- 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);
// in case 1.
TVector3 dir(0,0,0) ;
+ TMatrixF dummy ;
- TVector3 emcglobalpos ;
- TMatrix dummy ;
-
- emc->GetGlobalPosition(emcglobalpos, dummy) ;
-
-
- dir = emcglobalpos ;
- dir.SetMag(1.) ;
+ emc->GetGlobalPosition(dir, dummy) ;
//account correction to the position of IP
Float_t xo,yo,zo ; //Coordinates of the origin
- if(gAlice && gAlice->GetMCApp() && gAlice->Generator())
+ 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)
{
- Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ //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] ;
- // 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) ;
- if(mean != 0. && sigma/mean > 1.e-4 ){
- TF1 * f = new TF1("landau","landau",0.,100.);
- f->SetParameters(cnt,mean,sigma);
- Double_t arg = f->Eval(y) ;
- return arg;
+
+ 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[4] * (x*x) + par[5] * x + par[3] ;
- Double_t sigma = par[7] * (x*x) + par[8] * x + par[6] ;
-
- if(mean != 0. && sigma/mean > 1.e-4 ){
- TF1 * f = new TF1("landau","landau",0.,100.);
- f->SetParameters(cnt,mean,sigma);
- Double_t arg = f->Eval(y) ;
- return arg;
+ 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)
void AliPHOSPIDv1::MakePID()
{
// construct the PID weight from a Bayesian Method
+
+ const Int_t kSPECIES = AliPID::kSPECIESN ;
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
- Int_t index ;
- const Int_t kSPECIES = AliESDtrack::kSPECIESN ;
- Int_t nparticles = AliPHOSGetter::Instance()->RecParticles()->GetEntriesFast() ;
-
-// const Int_t kMAXPARTICLES = 2000 ;
-// if (nparticles >= kMAXPARTICLES)
-// AliError("Change size of MAXPARTICLES") ;
-// Double_t stof[kSPECIES][kMAXPARTICLES] ;
+ 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] ;
}
- // make the normalized distribution of pid for this event
- // w(pid) in the Bayesian formulation
- for(index = 0 ; index < nparticles ; index ++) {
+
+ while ( (ts = (AliPHOSTrackSegment *)next()) ) {
- AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
- AliPHOSEmcRecPoint * emc = AliPHOSGetter::Instance()->EmcRecPoint(index) ;
- AliPHOSCpvRecPoint * cpv = AliPHOSGetter::Instance()->CpvRecPoint(index) ;
+ //cout<<">>>>>> Bayesian Index "<<index<<endl;
+
+ AliPHOSEmcRecPoint * emc = 0 ;
+ if(ts->GetEmcIndex()>=0)
+ emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
- Float_t en = emc->GetEnergy();
+ AliPHOSCpvRecPoint * cpv = 0 ;
+ if(ts->GetCpvIndex()>=0)
+ cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
- // Tof
- Double_t time = recpar->ToF() ;
- //cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl;
- //Electrons initial population to be removed
- fInitPID[AliESDtrack::kEleCon] = 0. ;
+// 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[AliESDtrack::kPhoton][index] = fTFphoton ->Eval(time) ;
- // stof[AliESDtrack::kElectron][index] = stof[AliESDtrack::kPhoton][index] ;
- // if(time < fTpionl[1])
- // stof[AliESDtrack::kPion][index] = fTFpiong ->Eval(time) ; //gaus distribution
- // else
- // stof[AliESDtrack::kPion][index] = fTFpionl ->Eval(time) ; //landau distribution
- // if(time < fTkaonl[1])
- // stof[AliESDtrack::kKaon][index] = fTFkaong ->Eval(time) ; //gaus distribution
- // else
- // stof[AliESDtrack::kKaon][index] = fTFkaonl ->Eval(time) ; //landau distribution
- // if(time < fThhadronl[1])
- // stof[AliESDtrack::kProton][index] = fTFhhadrong ->Eval(time) ; //gaus distribution
- // else
- // stof[AliESDtrack::kProton][index] = fTFhhadronl ->Eval(time) ; //landau distribution
- // stof[AliESDtrack::kNeutron][index] = stof[AliESDtrack::kProton][index] ;
- // stof[AliESDtrack::kEleCon][index] = stof[AliESDtrack::kPhoton][index] ;
- // // a conversion electron has the photon ToF
- // stof[AliESDtrack::kKaon0][index] = stof[AliESDtrack::kKaon][index] ;
- // stof[AliESDtrack::kMuon][index] = stof[AliESDtrack::kPhoton][index] ;
- if(en < 2.) {
- // cout<<"TOF: pi "<< GausPol2(en, time, fTpion)<<endl;
- // cout<<"TOF: k "<< LandauPol2(en, time, fTkaon)<<endl;
- // cout<<"TOF: N "<< LandauPol2(en, time, fThhadron)<<endl;
- stof[AliESDtrack::kPhoton][index] = fTFphoton ->Eval(time) ;
- stof[AliESDtrack::kElectron][index] = stof[AliESDtrack::kPhoton][index] ;
-// stof[AliESDtrack::kPion][index] = GausPol2(en, time, fTpion) ; //gaus distribution
-// stof[AliESDtrack::kKaon][index] = LandauPol2(en, time, fTkaon) ; //gaus distribution
-// stof[AliESDtrack::kProton][index] = LandauPol2(en, time, fThhadron); //gaus distribution
- stof[AliESDtrack::kPion][index] = fTFpiong ->Eval(time) ; //landau distribution
+ 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])
- stof[AliESDtrack::kKaon][index] = fTFkaong ->Eval(time) ; //gaus distribution
+ pTofKaon = fTFkaong ->Eval(time) ; //gaus distribution
else
- stof[AliESDtrack::kKaon][index] = fTFkaonl ->Eval(time) ; //landau distribution
+ pTofKaon = fTFkaonl ->Eval(time) ; //landau distribution
+
+ Double_t pTofNucleon = 0;
+
if(time < fThhadronl[1])
- stof[AliESDtrack::kProton][index] = fTFhhadrong ->Eval(time) ; //gaus distribution
+ pTofNucleon = fTFhhadrong ->Eval(time) ; //gaus distribution
else
- stof[AliESDtrack::kProton][index] = fTFhhadronl ->Eval(time) ; //landau distribution
+ 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[AliESDtrack::kNeutron][index] = stof[AliESDtrack::kProton][index] ;
- stof[AliESDtrack::kEleCon][index] = stof[AliESDtrack::kPhoton][index] ;
- // a conversion electron has the photon ToF
- stof[AliESDtrack::kKaon0][index] = stof[AliESDtrack::kKaon][index] ;
- stof[AliESDtrack::kMuon][index] = stof[AliESDtrack::kPhoton][index] ;
+ stof[AliPID::kKaon0][index] = pTofNeHadron ;
+ stof[AliPID::kNeutron][index] = pTofNeHadron ;
}
- else {
- stof[AliESDtrack::kPhoton][index] = 1.;
- stof[AliESDtrack::kElectron][index] = 1.;
- stof[AliESDtrack::kPion][index] = 1.;
- stof[AliESDtrack::kKaon][index] = 1.;
- stof[AliESDtrack::kProton][index] = 1.;
- stof[AliESDtrack::kNeutron][index] = 1.;
- stof[AliESDtrack::kEleCon][index] = 1.;
- stof[AliESDtrack::kKaon0][index] = 1.;
- stof[AliESDtrack::kMuon][index] = 1.;
- }
- // Info("MakePID", "TOF passed");
- // Shower shape: Dispersion
+ // Info("MakePID", "Dispersion");
+
+ // ###########Shower shape: Dispersion####################
Float_t dispersion = emc->GetDispersion();
//dispersion is not well defined if the cluster is only in few crystals
- // Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(),
- // dispersion);
- // Info("MakePID","ss: photon %f, hadron %f ", GausF (en , dispersion, fDphoton),
- // LandauF(en , dispersion, fDhadron ) );
- if(emc->GetMultiplicity() > 4){
- sdp[AliESDtrack::kPhoton][index] = GausF (en , dispersion, fDphoton) ;
- sdp[AliESDtrack::kElectron][index] = sdp[AliESDtrack::kPhoton][index] ;
- sdp[AliESDtrack::kPion][index] = LandauF(en , dispersion, fDhadron ) ;
- sdp[AliESDtrack::kKaon][index] = sdp[AliESDtrack::kPion][index] ;
- sdp[AliESDtrack::kProton][index] = sdp[AliESDtrack::kPion][index] ;
- sdp[AliESDtrack::kNeutron][index] = sdp[AliESDtrack::kPion][index] ;
- sdp[AliESDtrack::kEleCon][index] = sdp[AliESDtrack::kPhoton][index];
- sdp[AliESDtrack::kKaon0][index] = sdp[AliESDtrack::kPion][index] ;
- sdp[AliESDtrack::kMuon][index] = fDFmuon ->Eval(dispersion) ; //landau distribution
- }
- else{
- sdp[AliESDtrack::kPhoton][index] = 1. ;
- sdp[AliESDtrack::kElectron][index] = 1. ;
- sdp[AliESDtrack::kPion][index] = 1. ;
- sdp[AliESDtrack::kKaon][index] = 1. ;
- sdp[AliESDtrack::kProton][index] = 1. ;
- sdp[AliESDtrack::kNeutron][index] = 1. ;
- sdp[AliESDtrack::kEleCon][index] = 1. ;
- sdp[AliESDtrack::kKaon0][index] = 1. ;
- sdp[AliESDtrack::kMuon][index] = 1. ;
- }
+ 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
+ }
- // CPV-EMC Distance
- Float_t distance = GetDistance(emc, cpv, "R") ;
- // Info("MakePID", "Distance %f", distance);
- Float_t pcpv = 0 ;
- Float_t pcpvneutral = 0. ;
- Float_t pcpvelectron = GausF (en , distance, fCPVelectron) ;
- Float_t pcpvcharged = LandauF(en , distance, fCPVcharged) ;
- //Float_t pcpvcharged = ChargedHadronDistProb(en , distance, fCPVchargedg, fCPVchargedl) ;
- // Info("MakePID", "CPV: electron %f, hadron %f", pcpvelectron, pcpvcharged);
+// 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 < 1e-4)
+ if(pcpv < fChargedNeutralThreshold)
{
pcpvneutral = 1. ;
pcpvcharged = 0. ;
pcpvelectron = 0. ;
}
+ // else
+ // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl;
- scpv[AliESDtrack::kPion][index] = pcpvcharged ;
- scpv[AliESDtrack::kKaon][index] = pcpvcharged ;
- scpv[AliESDtrack::kProton][index] = pcpvcharged ;
- scpv[AliESDtrack::kPhoton][index] = pcpvneutral ;
- scpv[AliESDtrack::kElectron][index] = pcpvelectron ;
- scpv[AliESDtrack::kNeutron][index] = pcpvneutral ;
- scpv[AliESDtrack::kEleCon][index] = pcpvelectron ;
- scpv[AliESDtrack::kKaon0][index] = pcpvneutral ;
- scpv[AliESDtrack::kMuon][index] = pcpvelectron ;
+ 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[AliESDtrack::kPi0][index] = fTFphoton ->Eval(time) ;
- scpv[AliESDtrack::kPi0][index] = pcpvneutral ;
- if(emc->GetMultiplicity() > 4)
- sdp [AliESDtrack::kPi0][index] = GausPol2(en , dispersion, fDpi0) ;
- else
- sdp [AliESDtrack::kPi0][index] = 1. ;
- }
- else{
- stof[AliESDtrack::kPi0][index] = 0. ;
- scpv[AliESDtrack::kPi0][index] = 0. ;
- sdp [AliESDtrack::kPi0][index] = 0. ;
- fInitPID[AliESDtrack::kPi0] = 0. ;
+ 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[AliESDtrack::kMuon][index] = 0;
- stof[AliESDtrack::kMuon][index] = 0;
- sdp [AliESDtrack::kMuon][index] = 0;
+ scpv[AliPID::kMuon][index] = 0 ;
+ stof[AliPID::kMuon][index] = 0 ;
+ sdp [AliPID::kMuon][index] = 0 ;
}
-// cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ;
-// cout<<"Photon , pid "<< fInitPID[AliESDtrack::kPhoton]<<" tof "<<stof[AliESDtrack::kPhoton][index]
-// <<", cpv "<<scpv[AliESDtrack::kPhoton][index]<<", ss "<<sdp[AliESDtrack::kPhoton][index]<<endl;
-// cout<<"EleCon , pid "<< fInitPID[AliESDtrack::kEleCon]<<", tof "<<stof[AliESDtrack::kEleCon][index]
-// <<", cpv "<<scpv[AliESDtrack::kEleCon][index]<<" ss "<<sdp[AliESDtrack::kEleCon][index]<<endl;
-// cout<<"Electron , pid "<< fInitPID[AliESDtrack::kElectron]<<", tof "<<stof[AliESDtrack::kElectron][index]
-// <<", cpv "<<scpv[AliESDtrack::kElectron][index]<<" ss "<<sdp[AliESDtrack::kElectron][index]<<endl;
-// cout<<"Muon , pid "<< fInitPID[AliESDtrack::kMuon]<<", tof "<<stof[AliESDtrack::kMuon][index]
-// <<", cpv "<<scpv[AliESDtrack::kMuon][index]<<" ss "<<sdp[AliESDtrack::kMuon][index]<<endl;
-// cout<<"Pi0 , pid "<< fInitPID[AliESDtrack::kPi0]<<", tof "<<stof[AliESDtrack::kPi0][index]
-// <<", cpv "<<scpv[AliESDtrack::kPi0][index]<<" ss "<<sdp[AliESDtrack::kPi0][index]<<endl;
-// cout<<"Pion , pid "<< fInitPID[AliESDtrack::kPion]<<", tof "<<stof[AliESDtrack::kPion][index]
-// <<", cpv "<<scpv[AliESDtrack::kPion][index]<<" ss "<<sdp[AliESDtrack::kPion][index]<<endl;
-// cout<<"Kaon0 , pid "<< fInitPID[AliESDtrack::kKaon0]<<", tof "<<stof[AliESDtrack::kKaon0][index]
-// <<", cpv "<<scpv[AliESDtrack::kKaon0][index]<<" ss "<<sdp[AliESDtrack::kKaon0][index]<<endl;
-// cout<<"Kaon , pid "<< fInitPID[AliESDtrack::kKaon]<<", tof "<<stof[AliESDtrack::kKaon][index]
-// <<", cpv "<<scpv[AliESDtrack::kKaon][index]<<" ss "<<sdp[AliESDtrack::kKaon][index]<<endl;
-// cout<<"Neutron , pid "<< fInitPID[AliESDtrack::kNeutron]<<", tof "<<stof[AliESDtrack::kNeutron][index]
-// <<", cpv "<<scpv[AliESDtrack::kNeutron][index]<<" ss "<<sdp[AliESDtrack::kNeutron][index]<<endl;
-// cout<<"Proton , pid "<< fInitPID[AliESDtrack::kProton]<<", tof "<<stof[AliESDtrack::kProton][index]
-// <<", cpv "<<scpv[AliESDtrack::kProton][index]<<" ss "<<sdp[AliESDtrack::kProton][index]<<endl;
+
+ //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] * pid[jndex] ;
- wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] ;
- //cout<<"*************wn "<<wn<<endl;
- AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
+ 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;
-// cout<<"Particle "<<jndex<<" final prob * wn "
-// <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] <<" wn "<< wn<<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] *
- scpv[jndex][index] * fInitPID[jndex] / wn) ;
-// cout<<"final prob "<<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] / wn<<endl;
- //recpar->SetPID(jndex, stof[jndex][index] * fInitPID[jndex] / wn) ;
- //cout<<"After SetPID"<<endl;
- //recpar->Print();
+ sw[jndex][index] * scpv[jndex][index] *
+ fInitPID[jndex] / wn) ;
}
}
// Info("MakePID", "Delete");
- // for (Int_t i =0; i< kSPECIES; i++){
- // delete [] stof[i];
- // cout<<i<<endl;
- // delete [] sdp[i];
- // cout<<i<<endl;
- // delete [] scpv[i];
- // cout<<i<<endl;
- // }
-
+ for (Int_t i =0; i< kSPECIES; i++){
+ delete [] stof[i];
+ delete [] sdp [i];
+ delete [] scpv[i];
+ delete [] sw [i];
+ }
// Info("MakePID","End MakePID");
}
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) ;
// 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);
}
//____________________________________________________________________________
-void AliPHOSPIDv1::Print() const
+void AliPHOSPIDv1::Print(const Option_t *) const
{
// Print the parameters used for the particle type identification
// 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");
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",
//____________________________________________________________________________
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() ;
//_______________________________________________________________________
void AliPHOSPIDv1::SetInitPID(const Double_t *p) {
// Sets values for the initial population of each particle type
- for (Int_t i=0; i<AliESDtrack::kSPECIESN; i++) fInitPID[i] = p[i];
+ 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<AliESDtrack::kSPECIESN; i++) p[i] = fInitPID[i];
+ for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i] = fInitPID[i];
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff