X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PHOS%2FAliPHOSPIDv1.cxx;h=fda233fdc6f77570a66bae4f77f0114715a0d18c;hb=1b98727b53343acb6ce6e64d62c7e89132d03f11;hp=5d06966efeafd912d23e699970668f4f56a0594c;hpb=780a31c1b2fd04fc7dd97ae1fa2e999671150f40;p=u%2Fmrichter%2FAliRoot.git diff --git a/PHOS/AliPHOSPIDv1.cxx b/PHOS/AliPHOSPIDv1.cxx index 5d06966efea..fda233fdc6f 100644 --- a/PHOS/AliPHOSPIDv1.cxx +++ b/PHOS/AliPHOSPIDv1.cxx @@ -15,568 +15,1636 @@ /* $Id$ */ +/* History of cvs commits: + * + * $Log$ + * Revision 1.113 2007/08/07 14:12:03 kharlov + * Quality assurance added (Yves Schutz) + * + * Revision 1.112 2007/07/11 13:43:30 hristov + * New class AliESDEvent, backward compatibility with the old AliESD (Christian) + * + * Revision 1.111 2007/05/04 14:49:29 policheh + * AliPHOSRecPoint inheritance from AliCluster + * + * Revision 1.110 2007/04/24 10:08:03 kharlov + * Vertex extraction from GenHeader + * + * Revision 1.109 2007/04/18 09:34:05 kharlov + * Geometry bug fixes + * + * Revision 1.108 2007/04/16 09:03:37 kharlov + * Incedent angle correction fixed + * + * Revision 1.107 2007/04/02 15:00:16 cvetan + * No more calls to gAlice in the reconstruction + * + * Revision 1.106 2007/04/01 15:40:15 kharlov + * Correction for actual vertex position implemented + * + * Revision 1.105 2007/03/06 06:57:46 kharlov + * DP:calculation of distance to CPV done in TSM + * + * Revision 1.104 2006/12/15 10:46:26 hristov + * Using TMath::Abs instead of fabs + * + * Revision 1.103 2006/09/07 18:31:08 kharlov + * Effective c++ corrections (T.Pocheptsov) + * + * Revision 1.102 2006/01/23 17:51:48 hristov + * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up + * + * 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 -// - CPV information, -// - Preshower information (in MIXT or GPS2 geometries) -// - shower width. -// -// CPV or Preshower clusters should be closer in PHOS plane than fCpvEmcDistance (in cm). -// This parameter can be set by method SetCpvtoEmcDistanceCut(Float_t cut) +// - RCPV: distance from CPV recpoint to EMCA recpoint. +// - TOF +// - PCA: Principal Components Analysis.. +// The identified particle has an identification number corresponding +// to a 9 bits number: +// -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds +// to a different efficiency-purity point of the photon identification) +// -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds +// to a different efficiency-purity point of the photon identification) +// -Bit 6 to 9: bit set if Principal Components are +// inside an ellipse defined by the parameters a, b, c, x0 and y0. +// (each bit corresponds to a different efficiency-purity point of the +// photon identification) +// The PCA (Principal components analysis) needs a file that contains +// a previous analysis of the correlations between the particles. This +// file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for +// energies between 0.5 and 100 GeV. +// A calibrated energy is calculated. The energy of the reconstructed +// cluster is corrected with the formula A + B * E + C * E^2, whose +// parameters where obtained through the study of the reconstructed +// energy distribution of monoenergetic photons. // -// One can set desirable ID method by the function SetIdentificationMethod(option). -// Presently the following options can be used together or separately : -// - "disp": use dispersion cut on shower width -// (width can be set by method SetDispersionCut(Float_t cut) -// - "ell" : use cut on the axis of the ellipse, drawn around shower -// (this cut can be changed by SetShowerProfileCut(char* formula), -// where formula - any function of two variables f(lambda[0],lambda[1]). -// Shower is considered as EM if f() > 0 ) -// One can visualize current cuts calling method PlotDispersionCuts(). +// All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c) +// and calibration(1r-3c))are stored in a file called +// $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is +// initialized, this parameters are copied to a Matrix (9,4), a +// TMatrixD object. // // use case: -// root [0] AliPHOSPIDv1 * p1 = new AliPHOSPIDv1("galice.root") +// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root") // Warning in : object already instantiated -// root [1] p1->SetIdentificationMethod("disp ellipse") -// root [2] p1->ExecuteTask() -// root [3] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","ts1") -// Warning in : object already instantiated -// // reading headers from file galice1.root and TrackSegments -// // with title "ts1" -// root [4] p2->SetRecParticlesBranch("rp1") -// // set file name for the branch RecParticles -// root [5] p2->ExecuteTask("deb all time") -// // available options -// // "deb" - prints # of reconstructed particles -// // "deb all" - prints # and list of RecParticles -// // "time" - prints benchmarking results +// // reading headers from file galice1.root and create RecParticles + // TrackSegments and RecPoints are used +// // set file name for the branch RecParticles +// root [1] p->ExecuteTask("deb all time") +// // available options +// // "deb" - prints # of reconstructed particles +// // "deb all" - prints # and list of RecParticles +// // "time" - prints benchmarking results // -//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & -// Dmitri Peressounko (SUBATECH & Kurchatov Institute) -// Completely redesined by Dmitri Peressounko, March 2001 +// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE) +// Warning in : object already instantiated +// //Split mode. +// root [3] p2->ExecuteTask() +// + +//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & +// Gustavo Conesa April 2002 +// PCA redesigned by Gustavo Conesa October 2002: +// The way of using the PCA has changed. Instead of 2 +// files with the PCA, each one with different energy ranges +// of application, we use the wide one (0.5-100 GeV), and instead +// of fixing 3 ellipses for different ranges of energy, it has been +// studied the dependency of the ellipses parameters with the +// energy, and they are implemented in the code as a funtion +// of the energy. +// +// +// // --- ROOT system --- -#include "TROOT.h" -#include "TTree.h" -#include "TFile.h" -#include "TF2.h" + + +// --- Standard library --- +#include #include "TFormula.h" -#include "TCanvas.h" -#include "TFolder.h" -#include "TSystem.h" #include "TBenchmark.h" -// --- Standard library --- - -#include -#include +#include "TPrincipal.h" +#include "TFile.h" +#include "TSystem.h" // --- AliRoot header files --- - -#include "AliRun.h" -#include "AliGenerator.h" + //#include "AliLog.h" #include "AliPHOS.h" #include "AliPHOSPIDv1.h" -#include "AliPHOSClusterizerv1.h" +#include "AliESDEvent.h" +#include "AliESDVertex.h" #include "AliPHOSTrackSegment.h" -#include "AliPHOSTrackSegmentMakerv1.h" +#include "AliPHOSEmcRecPoint.h" #include "AliPHOSRecParticle.h" -#include "AliPHOSGeometry.h" -#include "AliPHOSGetter.h" ClassImp( AliPHOSPIDv1) //____________________________________________________________________________ -AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID() +AliPHOSPIDv1::AliPHOSPIDv1() : + AliPHOSPID(), + fBayesian(kFALSE), + fDefaultInit(kFALSE), + fWrite(kFALSE), + fFileNamePrincipalPhoton(), + fFileNamePrincipalPi0(), + fFileNameParameters(), + fPrincipalPhoton(0), + fPrincipalPi0(0), + fX(0), + fPPhoton(0), + fPPi0(0), + fParameters(0), + fVtx(0.,0.,0.), + fTFphoton(0), + fTFpiong(0), + fTFkaong(0), + fTFkaonl(0), + fTFhhadrong(0), + fTFhhadronl(0), + fDFmuon(0), + fERecWeight(0), + fChargedNeutralThreshold(0.), + fTOFEnThreshold(0), + fDispEnThreshold(0), + fDispMultThreshold(0) { // default ctor - fFormula = 0 ; - fDispersion = 0. ; - fCpvEmcDistance = 0 ; - fTimeGate = 2.e-9 ; - fHeaderFileName = "" ; - fTrackSegmentsTitle= "" ; - fRecPointsTitle = "" ; - fRecParticlesTitle = "" ; - fIDOptions = "dis time" ; - fRecParticlesInRun = 0 ; - fClusterizer = 0; - fTSMaker = 0; + + InitParameters() ; + fDefaultInit = kTRUE ; } //____________________________________________________________________________ -AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name) : AliPHOSPID(headerFile, name) +AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ) : + AliPHOSPID(pid), + fBayesian(kFALSE), + fDefaultInit(kFALSE), + fWrite(kFALSE), + fFileNamePrincipalPhoton(), + fFileNamePrincipalPi0(), + fFileNameParameters(), + fPrincipalPhoton(0), + fPrincipalPi0(0), + fX(0), + fPPhoton(0), + fPPi0(0), + fParameters(0), + fVtx(0.,0.,0.), + fTFphoton(0), + fTFpiong(0), + fTFkaong(0), + fTFkaonl(0), + fTFhhadrong(0), + fTFhhadronl(0), + fDFmuon(0), + fERecWeight(0), + fChargedNeutralThreshold(0.), + fTOFEnThreshold(0), + fDispEnThreshold(0), + fDispMultThreshold(0) + { - //ctor with the indication on where to look for the track segments + // ctor + InitParameters() ; - fFormula = new TFormula("LambdaCuts","(x>1)*(x<2.5)*(y>0)*(yPHOSGeometry() ; - TVector3 vecEmc ; - TVector3 vecCpv ; + // Initialize PID parameters + fWrite = kTRUE ; + fBayesian = kTRUE ; + SetParameters() ; // fill the parameters matrix from parameters file + + // 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 - 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 - Float_t dCPV = geom->GetIPtoOuterCoverDistance(); - Float_t dEMC = geom->GetIPtoCrystalSurface() ; - dEMC = dEMC / dCPV ; - vecCpv = dEMC * vecCpv - vecEmc ; - if (Axis == "X") return vecCpv.X(); - if (Axis == "Y") return vecCpv.Y(); - if (Axis == "Z") return vecCpv.Z(); - if (Axis == "R") return vecCpv.Mag(); - } +// 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::kSPECIESCN ; i++) + fInitPID[i] = 1.; - return 100000000 ; } -//____________________________________________________________________________ -void AliPHOSPIDv1::Exec(Option_t * option) +//________________________________________________________________________ +void AliPHOSPIDv1::TrackSegments2RecParticles(Option_t *option) { - //Steering method - - if( strcmp(GetName(), "")== 0 ) - Init() ; + // Steering method to perform particle reconstruction and identification + // for the event range from fFirstEvent to fLastEvent. if(strstr(option,"tim")) gBenchmark->Start("PHOSPID"); if(strstr(option,"print")) { - Print("") ; + Print() ; return ; } - gAlice->GetEvent(0) ; - //check, if the branch with name of this" already exits? - TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ; - TIter next(lob) ; - TBranch * branch = 0 ; - Bool_t phospidfound = kFALSE, pidfound = kFALSE ; - - TString taskName(GetName()) ; - taskName.Remove(taskName.Index(Version())-1) ; - - while ( (branch = (TBranch*)next()) && (!phospidfound || !pidfound) ) { - if ( (strcmp(branch->GetName(), "PHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) - phospidfound = kTRUE ; - - else if ( (strcmp(branch->GetName(), "AliPHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) - pidfound = kTRUE ; - } + if(fTrackSegments && //Skip events, where no track segments made + fTrackSegments->GetEntriesFast()) { - if ( phospidfound || pidfound ) { - cerr << "WARNING: AliPHOSPIDv1::Exec -> RecParticles and/or PIDtMaker branch with name " - << taskName.Data() << " already exits" << endl ; - return ; - } - - Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ; - Int_t ievent ; - AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; - - for(ievent = 0; ievent < nevents; ievent++){ - gime->Event(ievent,"R") ; - + GetVertex() ; MakeRecParticles() ; - - WriteRecParticles(ievent); - + + if(fBayesian) + MakePID() ; + if(strstr(option,"deb")) PrintRecParticles(option) ; - - //increment the total number of rec particles per run - fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; - } - + + if(strstr(option,"deb")) + PrintRecParticles(option); if(strstr(option,"tim")){ gBenchmark->Stop("PHOSPID"); - cout << "AliPHOSPID:" << endl ; - cout << " took " << gBenchmark->GetCpuTime("PHOSPID") << " seconds for PID " - << gBenchmark->GetCpuTime("PHOSPID")/nevents << " seconds per event " << endl ; - cout << endl ; + AliInfo(Form("took %f seconds for PID", + gBenchmark->GetCpuTime("PHOSPID"))); } +} + +//________________________________________________________________________ +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] ; + +// if(xorg > 30) +// cout<<"En_in = "<2 || i<0) { + AliError(Form("Invalid parameter number: %d",i)); + } else + param = (*fParameters)(0,i); + return param; +} + +//____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const +{ + // Get the i-th parameter "CPV-EMC distance" for the specified axis + Float_t param = 0.; + 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 { + AliError(Form("Invalid axis name: %s",axis.Data())); + } + } + return param; +} + //____________________________________________________________________________ -void AliPHOSPIDv1::Init() +Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const { - // Make all memory allocations that are not possible in default constructor - // Add the PID task to the list of PHOS tasks + // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and + // Purity-Efficiency point + + axis.ToLower(); + Float_t p[]={0.,0.,0.}; + for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis); + Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e); + return sig; +} + +//____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const +{ + // Calculates the parameter param of the ellipse + + particle.ToLower(); + param. ToLower(); + Float_t p[4]={0.,0.,0.,0.}; + Float_t value = 0.0; + for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i); + if (particle == "photon") { + if (param.Contains("a")) e = TMath::Min((Double_t)e,70.); + else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.); + else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1); + } + + 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; +} + +//_____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const +{ + // 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) { + AliError(Form("Wrong parameter number: %d\n",i)); + } else + param = (*fParameters)(14,i) ; + return param; +} + +//____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const +{ + // 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) { + AliError(Form("Wrong parameter number: %d\n",i)); + } else + param = (*fParameters)(15,i) ; + return param; +} + +//____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const +{ + // 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) { + AliError(Form("Invalid Efficiency-Purity choice %d",i)); + } else + param = (*fParameters)(3,i) ; + return param; +} + +//_____________________________________________________________________________ +Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const +{ + // Get the parameter "i" that is needed to calculate the ellipse + // parameter "param" for the particle "particle" ("photon" or "pi0") + + particle.ToLower(); + param. ToLower(); + Int_t offset = -1; + if (particle == "photon") + offset=0; + else if (particle == "pi0") + offset=5; + else + AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", + particle.Data())); + + Int_t p= -1; + Float_t par = 0; + + 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) { + 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) ; - if ( strcmp(GetTitle(), "") == 0 ) - SetTitle("galice.root") ; + return par; +} +//____________________________________________________________________________ +Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSTrackSegment * ts, 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)); + +//DP if(ts->GetCpvIndex()<0) +//DP return 1 ; //no CPV cluster - TString taskName(GetName()) ; - taskName.Remove(taskName.Index(Version())-1) ; + Float_t sigX = GetCpv2EmcDistanceCut("X",e); + Float_t sigZ = GetCpv2EmcDistanceCut("Z",e); - AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), taskName.Data()) ; - if ( gime == 0 ) { - cerr << "ERROR: AliPHOSPIDv1::Init -> Could not obtain the Getter object !" << endl ; - return ; - } - - gime->PostPID(this) ; - // create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName - gime->PostRecParticles(taskName.Data() ) ; + Float_t deltaX = TMath::Abs(ts->GetCpvDistance("X")); + Float_t deltaZ = TMath::Abs(ts->GetCpvDistance("Z")); +// 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 +} + +//____________________________________________________________________________ +Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const +{ + //Is the particle inside de PCA ellipse? + + 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 x0 = GetEllipseParameter(particle,"x0", e); + Float_t y0 = GetEllipseParameter(particle,"y0", e); + Float_t r = TMath::Power((p[0] - x0)/a,2) + + TMath::Power((p[1] - y0)/b,2) + + c*(p[0] - x0)*(p[1] - y0)/(a*b) ; + //3 different ellipses defined + if((effPur==2) && (r<1./2.)) prinbit= 1; + if((effPur==1) && (r<2. )) prinbit= 1; + if((effPur==0) && (r<9./2.)) prinbit= 1; + + if(r<0) + AliError("Negative square?") ; + + return prinbit; + +} +//____________________________________________________________________________ +Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const +{ + // Set bit for identified hard photons (E > 30 GeV) + // if the second moment M2x is below the boundary + + Float_t e = emc->GetEnergy(); + if (e < 30.0) return 0; + Float_t m2x = emc->GetM2x(); + Float_t m2xBoundary = GetParameterPhotonBoundary(0) * + TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/ + TMath::Power(GetParameterPhotonBoundary(2),2)) + + GetParameterPhotonBoundary(3); + AliDebug(1, Form("E=%f, m2x=%f, boundary=%f", e,m2x,m2xBoundary)); + if (m2x < m2xBoundary) + return 1;// A hard photon + else + return 0;// Not a hard photon } //____________________________________________________________________________ -void AliPHOSPIDv1::MakeRecParticles(){ +Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const +{ + // Set bit for identified hard pi0 (E > 30 GeV) + // if the second moment M2x is above the boundary - // Makes a RecParticle out of a TrackSegment - TString taskName(GetName()) ; - taskName.Remove(taskName.Index(Version())-1) ; + Float_t e = emc->GetEnergy(); + if (e < 30.0) return 0; + Float_t m2x = emc->GetM2x(); + Float_t m2xBoundary = GetParameterPi0Boundary(0) + + e * GetParameterPi0Boundary(1); + AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary)); + if (m2x > m2xBoundary) + return 1;// A hard pi0 + else + return 0;// Not a hard pi0 +} - AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; - TObjArray * emcRecPoints = gime->EmcRecPoints(taskName) ; - TObjArray * cpvRecPoints = gime->CpvRecPoints(taskName) ; - TClonesArray * trackSegments = gime->TrackSegments(taskName) ; - TClonesArray * recParticles = gime->RecParticles(taskName) ; - recParticles->Clear(); +//____________________________________________________________________________ +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 + // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints + // However because of the poor position resolution of PPSD the direction is always taken as if we were + // in case 1. + + TVector3 local ; + emc->GetLocalPosition(local) ; + + AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; + //Correct for the non-perpendicular incidence + // Correction for the depth of the shower starting point (TDR p 127) + Float_t para = 0.925 ; + Float_t parb = 6.52 ; + + //Remove Old correction (vertex at 0,0,0) + TVector3 vtxOld(0.,0.,0.) ; + TVector3 vInc ; + Float_t x=local.X() ; + Float_t z=local.Z() ; + phosgeom->GetIncidentVector(vtxOld,emc->GetPHOSMod(),x,z,vInc) ; + Float_t depthxOld = 0.; + Float_t depthzOld = 0.; + Float_t energy = emc->GetEnergy() ; + if (energy > 0 && vInc.Y()!=0.) { + depthxOld = ( para * TMath::Log(energy) + parb ) * vInc.X()/TMath::Abs(vInc.Y()) ; + depthzOld = ( para * TMath::Log(energy) + parb ) * vInc.Z()/TMath::Abs(vInc.Y()) ; + } + else{ + AliError("Cluster with zero energy \n"); + } + //Apply Real vertex + phosgeom->GetIncidentVector(fVtx,emc->GetPHOSMod(),x,z,vInc) ; + Float_t depthx = 0.; + Float_t depthz = 0.; + if (energy > 0 && vInc.Y()!=0.) { + depthx = ( para * TMath::Log(energy) + parb ) * vInc.X()/TMath::Abs(vInc.Y()) ; + depthz = ( para * TMath::Log(energy) + parb ) * vInc.Z()/TMath::Abs(vInc.Y()) ; + } + + //Correct for the vertex position and shower depth + Double_t xd=x+(depthxOld-depthx) ; + Double_t zd=z+(depthzOld-depthz) ; + TVector3 dir(0,0,0) ; + phosgeom->Local2Global(emc->GetPHOSMod(),xd,zd,dir) ; + + dir-=fVtx ; + 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) ; - TIter next(trackSegments) ; +// return arg; + +// } +//____________________________________________________________________________ +void AliPHOSPIDv1::MakePID() +{ + // construct the PID weight from a Bayesian Method + + const Int_t kSPECIES = AliPID::kSPECIESCN ; + + Int_t nparticles = fRecParticles->GetEntriesFast() ; + + if ( !fEMCRecPoints || !fCPVRecPoints || !fTrackSegments ) { + AliFatal("RecPoints or TrackSegments not found !") ; + } + + TIter next(fTrackSegments) ; AliPHOSTrackSegment * ts ; Int_t index = 0 ; - AliPHOSRecParticle * rp ; + + Double_t * stof[kSPECIES] ; + Double_t * sdp [kSPECIES] ; + Double_t * scpv[kSPECIES] ; + Double_t * sw [kSPECIES] ; + //Info("MakePID","Begin MakePID"); - Bool_t ellips = fIDOptions.Contains("ell",TString::kIgnoreCase ) ; - Bool_t disp = fIDOptions.Contains("dis",TString::kIgnoreCase ) ; - Bool_t time = fIDOptions.Contains("tim",TString::kIgnoreCase ) ; + 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()) ) { - new( (*recParticles)[index] ) AliPHOSRecParticle() ; - rp = (AliPHOSRecParticle *)recParticles->At(index) ; - rp->SetTraskSegment(index) ; - rp->SetIndexInList(index) ; + //cout<<">>>>>> Bayesian Index "<GetEmcIndex()>=0) + emc = (AliPHOSEmcRecPoint *) fEMCRecPoints->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)", ts->GetEmcIndex())) ; + } + + + // ############Tof############################# + + // Info("MakePID", "TOF"); + Float_t en = emc->GetEnergy(); + Double_t time = emc->GetTime() ; + // cout<<">>>>>>>Energy "<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(); + //DP: Correct for non-perpendicular incidence + //DP: still to be done + + //dispersion is not well defined if the cluster is only in few crystals + //Initialize anused species + for(Int_t iii=0; iii 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 "<GetMultiplicity()<<", dispersion "<< dispersion<GetCpvDistance("X")) ; + Float_t z = ts->GetCpvDistance("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 "<>>>electron : x "<>>>hadron : x "<>>>electron : px*pz "<= pcpvcharged) + pcpv = pcpvelectron ; + else + pcpv = pcpvcharged ; + + if(pcpv < fChargedNeutralThreshold) + { + pcpvneutral = 1. ; + pcpvcharged = 0. ; + pcpvelectron = 0. ; + } + // else + // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"< 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 = "<>>>>multiplicity "<GetMultiplicity()<>>>electron : xprob "<>>>hadron : xprob "<>>>electron : px*pz "<(fRecParticles->At(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 "<0) + for (jndex = 0 ; jndex < kSPECIES ; jndex++) { + //cout<<"jndex "<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() +{ + // Makes a RecParticle out of a TrackSegment + + if ( !fEMCRecPoints || !fCPVRecPoints || !fTrackSegments ) { + AliFatal("RecPoints or TrackSegments not found !") ; + } + fRecParticles->Clear(); + + TIter next(fTrackSegments) ; + AliPHOSTrackSegment * ts ; + Int_t index = 0 ; + AliPHOSRecParticle * rp ; + while ( (ts = (AliPHOSTrackSegment *)next()) ) { + // cout<<">>>>>>>>>>>>>>>PCA Index "<At(index) ; + rp->SetTrackSegment(index) ; + rp->SetIndexInList(index) ; + AliPHOSEmcRecPoint * emc = 0 ; if(ts->GetEmcIndex()>=0) - emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; + emc = (AliPHOSEmcRecPoint *) fEMCRecPoints->At(ts->GetEmcIndex()) ; - AliPHOSRecPoint * cpv = 0 ; + AliPHOSCpvRecPoint * cpv = 0 ; if(ts->GetCpvIndex()>=0) - cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; + cpv = (AliPHOSCpvRecPoint *) fCPVRecPoints->At(ts->GetCpvIndex()) ; - //set momentum and energy first - Float_t e = emc->GetEnergy() ; - TVector3 dir = GetMomentumDirection(emc,cpv) ; - dir.SetMag(e) ; + Int_t track = 0 ; + track = ts->GetTrackIndex() ; + + // Now set type (reconstructed) of the particle - rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; - rp->SetCalcMass(0); + // Choose the cluster energy range + + if (!emc) { + AliFatal(Form("-> emc(%d)", ts->GetEmcIndex())) ; + } - //now set type (reconstructed) of the particle - Int_t showerprofile = 0; // 0 narrow and 1 wide + Float_t e = emc->GetEnergy() ; - if(ellips){ - Float_t lambda[2] ; - emc->GetElipsAxis(lambda) ; - if(fFormula->Eval(lambda[0],lambda[1]) <= 0 ) - showerprofile = 1 ; // not narrow + Float_t lambda[2]={0.,0.} ; + emc->GetElipsAxis(lambda) ; + + if((lambda[0]>0.01) && (lambda[1]>0.01)){ + // Looking PCA. Define and calculate the data (X), + // introduce in the function X2P that gives the components (P). + + Float_t spher = 0. ; + Float_t emaxdtotal = 0. ; + + if((lambda[0]+lambda[1])!=0) + spher=TMath::Abs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); + + emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); + + fX[0] = lambda[0] ; + fX[1] = lambda[1] ; + fX[2] = emc->GetDispersion() ; + fX[3] = spher ; + fX[4] = emc->GetMultiplicity() ; + fX[5] = emaxdtotal ; + fX[6] = emc->GetCoreEnergy() ; + + fPrincipalPhoton->X2P(fX,fPPhoton); + fPrincipalPi0 ->X2P(fX,fPPi0); + + } + else{ + fPPhoton[0]=-100.0; //We do not accept clusters with + fPPhoton[1]=-100.0; //one cell as a photon-like + fPPi0[0] =-100.0; + fPPi0[1] =-100.0; } - if(disp) - if(emc->GetDispersion() > fDispersion ) - showerprofile = 1 ; // not narrow + Float_t time = emc->GetTime() ; + rp->SetTof(time) ; - Int_t slow = 0 ; - if(time) - if(emc->GetTime() > fTimeGate ) - slow = 0 ; - - // Looking at the CPV detector - Int_t cpvdetector= 0 ; //1 hit and 0 no hit - if(cpv) - if(GetDistance(emc, cpv, "R") < fCpvEmcDistance) - cpvdetector = 1 ; + // Loop of Efficiency-Purity (the 3 points of purity or efficiency + // are taken into account to set the particle identification) + for(Int_t effPur = 0; effPur < 3 ; effPur++){ + + // 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(ts, effPur,e) == 1 ){ + rp->SetPIDBit(effPur) ; + //cout<<"CPV bit "<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(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1) + rp->SetPIDBit(effPur+6) ; + + //Pi0 PCA + //If we are inside the ellipse, 10th, 11th or 12th + // bit (depending on the efficiency-purity point )is set to 1 + if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1) + rp->SetPIDBit(effPur+9) ; + } + if(GetHardPhotonBit(emc)) + rp->SetPIDBit(12) ; + if(GetHardPi0Bit (emc)) + rp->SetPIDBit(13) ; - Int_t type = showerprofile + 2 * slow + 4 * cpvdetector ; - rp->SetType(type) ; - rp->SetProductionVertex(0,0,0,0); + if(track >= 0) + rp->SetPIDBit(14) ; + + //Set momentum, energy and other parameters + TVector3 dir = GetMomentumDirection(emc,cpv) ; + dir.SetMag(e) ; + rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; + rp->SetCalcMass(0); + rp->Name(); //If photon sets the particle pdg name to gamma + rp->SetProductionVertex(fVtx.X(),fVtx.Y(),fVtx.Z(),0); rp->SetFirstMother(-1); rp->SetLastMother(-1); rp->SetFirstDaughter(-1); rp->SetLastDaughter(-1); rp->SetPolarisation(0,0,0); + //Set the position in global coordinate system from the RecPoint + AliPHOSTrackSegment * ts1 = static_cast(fTrackSegments->At(rp->GetPHOSTSIndex())); + AliPHOSEmcRecPoint * erp = static_cast(fEMCRecPoints->At(ts1->GetEmcIndex())); + TVector3 pos ; + fGeom->GetGlobalPHOS(erp, pos) ; + rp->SetPos(pos); index++ ; } - } - + //____________________________________________________________________________ -void AliPHOSPIDv1:: Print(Option_t * option) const +void AliPHOSPIDv1::Print(const Option_t *) const { // Print the parameters used for the particle type identification - cout << "=============== AliPHOSPID1 ================" << endl ; - cout << "Making PID "<< endl ; - cout << " Headers file: " << fHeaderFileName.Data() << endl ; - cout << " RecPoints branch title: " << fRecPointsTitle.Data() << endl ; - cout << " TrackSegments Branch title: " << fTrackSegmentsTitle.Data() << endl ; - cout << " RecParticles Branch title " << fRecParticlesTitle.Data() << endl; - cout << "with parameters: " << endl ; - cout << " Maximal EMC - CPV distance (cm) " << fCpvEmcDistance << endl ; - if(fIDOptions.Contains("dis",TString::kIgnoreCase )) - cout << " dispersion cut " << fDispersion << endl ; - if(fIDOptions.Contains("ell",TString::kIgnoreCase )){ - cout << " Eliptic cuts function: " << endl ; - cout << fFormula->GetTitle() << endl ; - } - if(fIDOptions.Contains("tim",TString::kIgnoreCase )) - cout << " Time Gate uzed: " << fTimeGate << endl ; - cout << "============================================" << endl ; + + 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() ) ; + printf(" Matrix of Parameters: 14x4\n") ; + printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ; + printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ; + printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ; + printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ; + printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ; + fParameters->Print() ; } + + //____________________________________________________________________________ -void AliPHOSPIDv1::SetShowerProfileCut(char * formula) +void AliPHOSPIDv1::PrintRecParticles(Option_t * option) { - //set shape of the cut on the axis of ellipce, drown around shouer - //shower considered "narrow" if Formula(lambda[0],lambda[1]) > 0. - if(fFormula) - delete fFormula; - fFormula = new TFormula("Lambda Cut",formula) ; + // Print table of reconstructed particles + + TString message ; + message = " found " ; + message += fRecParticles->GetEntriesFast(); + message += " RecParticles\n" ; + + if(strstr(option,"all")) { // printing found TS + message += "\n PARTICLE Index \n" ; + + Int_t index ; + for (index = 0 ; index < fRecParticles->GetEntries() ; index++) { + AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) fRecParticles->At(index) ; + message += "\n" ; + message += rp->Name().Data() ; + message += " " ; + message += rp->GetIndexInList() ; + message += " " ; + message += rp->GetType() ; + } + } + AliInfo(message.Data() ) ; } + //____________________________________________________________________________ -void AliPHOSPIDv1::WriteRecParticles(Int_t event) +void AliPHOSPIDv1::SetParameters() { - - AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ; - TString taskName(GetName()) ; - taskName.Remove(taskName.Index(Version())-1) ; - TClonesArray * recParticles = gime->RecParticles(taskName) ; - recParticles->Expand(recParticles->GetEntriesFast() ) ; - - //Make branch in TreeR for RecParticles - char * filename = 0; - if(gSystem->Getenv("CONFIG_SPLIT_FILE")!=0){ //generating file name - filename = new char[strlen(gAlice->GetBaseFile())+20] ; - sprintf(filename,"%s/PHOS.Reco.root",gAlice->GetBaseFile()) ; - } + // PCA : To do the Principal Components Analysis it is necessary + // the Principal file, which is opened here + fX = new double[7]; // Data for the PCA + fPPhoton = new double[7]; // Eigenvalues of the PCA + fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA + + // Read photon principals from the photon file - TDirectory *cwd = gDirectory; - - //First rp - Int_t bufferSize = 32000 ; - TBranch * rpBranch = gAlice->TreeR()->Branch("PHOSRP",&recParticles,bufferSize); - rpBranch->SetTitle(fRecParticlesTitle); - if (filename) { - rpBranch->SetFile(filename); - TIter next( rpBranch->GetListOfBranches()); - TBranch * sb ; - while ((sb=(TBranch*)next())) { - sb->SetFile(filename); - } - cwd->cd(); + fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; + TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ; + fPrincipalPhoton = dynamic_cast (f.Get("principal")) ; + f.Close() ; + + // Read pi0 principals from the pi0 file + + fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ; + TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ; + fPrincipalPi0 = dynamic_cast (fPi0.Get("principal")) ; + fPi0.Close() ; + + // Open parameters file and initialization of the Parameters matrix. + // In the File Parameters.dat are all the parameters. These are introduced + // in a matrix of 16x4 + // + // All the parameters defined in this file are, in order of row: + // line 0 : calibration + // lines 1,2 : CPV rectangular cat for X and Z + // line 3 : TOF cut + // lines 4-8 : parameters to calculate photon PCA ellipse + // lines 9-13: parameters to calculate pi0 PCA ellipse + // lines 14-15: parameters to calculate border for high-pt photons and pi0 + + fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat"); + 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) + 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,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++; + AliDebug(1, Form("Line %d: %s",i,string)); } - - //second, pid - Int_t splitlevel = 0 ; - AliPHOSPIDv1 * pid = this ; - TBranch * pidBranch = gAlice->TreeR()->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel); - pidBranch->SetTitle(fRecParticlesTitle.Data()); - if (filename) { - pidBranch->SetFile(filename); - TIter next( pidBranch->GetListOfBranches()); - TBranch * sb ; - while ((sb=(TBranch*)next())) { - sb->SetFile(filename); - } - cwd->cd(); - } - - rpBranch->Fill() ; - pidBranch->Fill() ; - - gAlice->TreeR()->Write(0,kOverwrite) ; - - delete [] filename ; + fclose(fd); } //____________________________________________________________________________ -void AliPHOSPIDv1::PlotDispersionCuts()const +void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param) { - // produces a plot of the dispersion cut - TCanvas* lambdas = new TCanvas("lambdas","Cuts on the ellipse axis",200,10,700,500); - - if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ){ - TF2 * ell = new TF2("Elliptic Cuts",fFormula->GetName(),0,3,0,3) ; - ell->SetMinimum(0.0000001) ; - ell->SetMaximum(0.001) ; - ell->SetLineStyle(1) ; - ell->SetLineWidth(2) ; - ell->Draw() ; - } - - if( fIDOptions.Contains("dis",TString::kIgnoreCase ) ){ - TF2 * dsp = new TF2("dispersion","(ySetParameter(0,fDispersion) ; - dsp->SetMinimum(0.0000001) ; - dsp->SetMaximum(0.001) ; - dsp->SetLineStyle(1) ; - dsp->SetLineColor(2) ; - dsp->SetLineWidth(2) ; - dsp->SetNpx(200) ; - dsp->SetNpy(200) ; - if(fIDOptions.Contains("ell",TString::kIgnoreCase ) ) - dsp->Draw("same") ; - else - dsp->Draw() ; - } - lambdas->Update(); + // Set parameter "Calibration" i to a value param + if(i>2 || i<0) { + AliError(Form("Invalid parameter number: %d",i)); + } else + (*fParameters)(0,i) = param ; } //____________________________________________________________________________ -TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const -{ - // Calculates the momentum direction: - // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint - // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints - // However because of the poor position resolution of PPSD the direction is always taken as if we were - // in case 1. - - TVector3 dir(0,0,0) ; - - TVector3 emcglobalpos ; - TMatrix dummy ; - - emc->GetGlobalPosition(emcglobalpos, dummy) ; - - - // The following commented code becomes valid once the PPSD provides - // a reasonable position resolution, at least as good as EMC ! - // TVector3 ppsdlglobalpos ; - // TVector3 ppsduglobalpos ; - // if( fPpsdLowRecPoint ){ // certainly a photon that has concerted - // fPpsdLowRecPoint->GetGlobalPosition(ppsdlglobalpos, mdummy) ; - // dir = emcglobalpos - ppsdlglobalpos ; - // if( fPpsdUpRecPoint ){ // not looks like a charged - // fPpsdUpRecPoint->GetGlobalPosition(ppsduglobalpos, mdummy) ; - // dir = ( dir + emcglobalpos - ppsduglobalpos ) * 0.5 ; - // } - // } - // else { // looks like a neutral - // dir = emcglobalpos ; - // } - - dir = emcglobalpos ; - dir.SetZ( -dir.Z() ) ; // why ? - dir.SetMag(1.) ; +void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut) +{ + // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on + // Purity-Efficiency point i - //account correction to the position of IP - Float_t xo,yo,zo ; //Coordinates of the origin - gAlice->Generator()->GetOrigin(xo,yo,zo) ; - TVector3 origin(xo,yo,zo); - dir = dir - origin ; + 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 { + AliError(Form("Invalid axis name: %s",axis.Data())); + } + } +} - return dir ; +//____________________________________________________________________________ +void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param) +{ + // Set parameter "Hard photon boundary" i to a value param + if(i>4 || i<0) { + AliError(Form("Invalid parameter number: %d",i)); + } else + (*fParameters)(14,i) = param ; } + //____________________________________________________________________________ -void AliPHOSPIDv1::PrintRecParticles(Option_t * option) +void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param) { - // Print table of reconstructed particles + // Set parameter "Hard pi0 boundary" i to a value param + if(i>1 || i<0) { + AliError(Form("Invalid parameter number: %d",i)); + } else + (*fParameters)(15,i) = param ; +} - AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ; +//_____________________________________________________________________________ +void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate) +{ + // Set the parameter TimeGate depending on Purity-Efficiency point i + if (i>2 || i<0) { + AliError(Form("Invalid Efficiency-Purity choice %d",i)); + } else + (*fParameters)(3,i)= gate ; +} - TString taskName(GetName()) ; - taskName.Remove(taskName.Index(Version())-1) ; - TClonesArray * recParticles = gime->RecParticles(taskName) ; - - cout << "AliPHOSPIDv1: event "<GetEvNumber() << endl ; - cout << " found " << recParticles->GetEntriesFast() << " RecParticles " << endl ; +//_____________________________________________________________________________ +void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par) +{ + // Set the parameter "i" that is needed to calculate the ellipse + // parameter "param" for a particle "particle" - if(strstr(option,"all")) { // printing found TS - - cout << " PARTICLE " - << " Index " << endl ; - // << " X " - // << " Y " - // << " Z " - // << " # of primaries " - // << " Primaries list " << endl; - - Int_t index ; - for (index = 0 ; index < recParticles->GetEntries() ; index++) { - AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; - - Text_t particle[11]; - switch(rp->GetType()) { - case AliPHOSFastRecParticle::kNEUTRALEMFAST: - strcpy( particle, "NEUTRAL EM FAST"); - break; - case AliPHOSFastRecParticle::kNEUTRALHAFAST: - strcpy(particle, "NEUTRAL HA FAST"); - break; - case AliPHOSFastRecParticle::kNEUTRALEMSLOW: - strcpy(particle, "NEUTRAL EM SLOW"); - break ; - case AliPHOSFastRecParticle::kNEUTRALHASLOW: - strcpy(particle, "NEUTRAL HA SLOW"); - break ; - case AliPHOSFastRecParticle::kCHARGEDEMFAST: - strcpy(particle, "CHARGED EM FAST") ; - break ; - case AliPHOSFastRecParticle::kCHARGEDHAFAST: - strcpy(particle, "CHARGED HA FAST") ; - break ; - case AliPHOSFastRecParticle::kCHARGEDEMSLOW: - strcpy(particle, "CHARGEDEMSLOW") ; - break ; - case AliPHOSFastRecParticle::kCHARGEDHASLOW: - strcpy(particle, "CHARGED HA SLOW") ; - break ; - } - - // Int_t * primaries; - // Int_t nprimaries; - // primaries = rp->GetPrimaries(nprimaries); - - cout << setw(10) << particle << " " - << setw(5) << rp->GetIndexInList() << " " ; - // << setw(4) << nprimaries << " "; - // for (Int_t iprimary=0; iprimary4)||(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::GetVertex(void) +{ //extract vertex either using ESD or generator + + //Try to extract vertex from data + if(fESD){ + const AliESDVertex *esdVtx = fESD->GetVertex() ; + if(esdVtx && esdVtx->GetChi2()!=0.){ + fVtx.SetXYZ(esdVtx->GetXv(),esdVtx->GetYv(),esdVtx->GetZv()) ; + return ; + } + } + // Use vertex diamond from CDB GRP folder if the one from ESD is missing + // PLEASE FIX IT + AliWarning("Can not read vertex from data, use fixed \n") ; + fVtx.SetXYZ(0.,0.,0.) ; + +} +//_______________________________________________________________________ +void AliPHOSPIDv1::SetInitPID(const Double_t *p) { + // Sets values for the initial population of each particle type + for (Int_t i=0; i