Correction for actual vertex position implemented
[u/mrichter/AliRoot.git] / PHOS / AliPHOSPIDv1.h
CommitLineData
26d4b141 1#ifndef ALIPHOSPIDV1_H
2#define ALIPHOSPIDV1_H
6ad0bfa0 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7
702ab87e 8/* History of cvs commits:
9 *
10 * $Log$
407d15b3 11 * Revision 1.59 2007/03/06 06:57:46 kharlov
12 * DP:calculation of distance to CPV done in TSM
13 *
26aa7e4a 14 * Revision 1.58 2006/04/12 11:32:03 alibrary
15 * Simplification of Makefile and some small corrections
16 *
8faf5ae4 17 * Revision 1.57 2006/01/23 17:51:48 hristov
18 * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up
19 *
e8d02863 20 * Revision 1.56 2005/05/28 14:19:04 schutz
21 * Compilation warnings fixed by T.P.
22 *
702ab87e 23 */
b2a60966 24
25//_________________________________________________________________________
26// Implementation version v1 of the PHOS particle identifier
148b2bba 27// Identification is based on information from CPV and EMC
2f04ed65 28// Oh yeah
148b2bba 29//*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa.
6ad0bfa0 30
8faf5ae4 31// --- Standard library ---
e8d02863 32
8faf5ae4 33// --- ROOT system ---
c947e71a 34class TCanvas ;
35class TFolder ;
acb5beb7 36class TFormula;
8faf5ae4 37class TPrincipal ;
38class TROOT ;
39class TTree ;
40class TVector3 ;
41#include <TMatrixDfwd.h>
42
6ad0bfa0 43// --- AliRoot header files ---
c947e71a 44class AliPHOSClusterizerv1 ;
8faf5ae4 45class AliPHOSCpvRecPoint ;
46class AliPHOSEmcRecPoint ;
26aa7e4a 47class AliPHOSTrackSegment ;
c947e71a 48class AliPHOSTrackSegmentMakerv1 ;
26d4b141 49#include "AliPHOSPID.h"
fb7b51ad 50#include "AliPID.h"
8faf5ae4 51
26d4b141 52class AliPHOSPIDv1 : public AliPHOSPID {
50739f15 53
e3817e5f 54public:
50739f15 55
88cb7938 56 AliPHOSPIDv1() ; // ctor
e191bb57 57 AliPHOSPIDv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::GetDefaultEventFolderName()) ;
88cb7938 58 AliPHOSPIDv1(const AliPHOSPIDv1 & pid) ; // cpy ctor
e3817e5f 59
7acf6008 60 virtual ~AliPHOSPIDv1() ; // dtor
50739f15 61
eabde521 62 virtual void Exec(Option_t *option); // Does the job
e3817e5f 63
64 //Get file name that contain the PCA
65 const TString GetFileNamePrincipal(TString particle) const;
66
67 //Get file name that contain PID parameters
68 const TString GetFileNameParameters() const {return fFileNameParameters ;}
69
70 // Get number of rec.particles in this run
fc7e2f43 71 virtual Int_t GetRecParticlesInRun() const {return fRecParticlesInRun ;}
e3817e5f 72
35adb638 73
e3817e5f 74 // Get PID parameters as they are defined in fParameters
fc7e2f43 75 Float_t GetParameterCalibration (Int_t i) const;
76 Float_t GetParameterCpv2Emc (Int_t i, TString axis) const;
77 Float_t GetParameterTimeGate (Int_t i) const;
78 Float_t GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const ;
79 Float_t GetParameterPhotonBoundary (Int_t i) const;
80 Float_t GetParameterPi0Boundary (Int_t i) const;
e3817e5f 81
82 // Get energy-dependent PID parameters
fc7e2f43 83 Float_t GetCalibratedEnergy (Float_t e) const;
84 Float_t GetCpv2EmcDistanceCut (TString axis, Float_t e) const ;
85 Float_t GetEllipseParameter (TString particle, TString param, Float_t e) const;
e3817e5f 86
fb7b51ad 87 Double_t GetThresholdChargedNeutral () const {return fChargedNeutralThreshold;}
2924941c 88 Float_t GetTOFEnergyThreshold () const {return fTOFEnThreshold;}
89 Float_t GetDispersionEnergyThreshold () const {return fDispEnThreshold;}
90 Int_t GetDispersionMultiplicityThreshold () const {return fDispMultThreshold;}
fb7b51ad 91
c947e71a 92 //Do bayesian PID
93 void SetBayesianPID(Bool_t set){ fBayesian = set ;}
94
e3817e5f 95 // Set PID parameters to change appropriate element of fParameters
96 void SetParameterCalibration (Int_t i, Float_t param);
97 void SetParameterCpv2Emc (Int_t i, TString axis, Float_t cut) ;
98 void SetParameterTimeGate (Int_t i, Float_t gate) ;
99 void SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t value) ;
100 void SetParameterPhotonBoundary(Int_t i, Float_t param);
101 void SetParameterPi0Boundary (Int_t i, Float_t param);
102
fb7b51ad 103 void SetThresholdChargedNeutral (Double_t th) {fChargedNeutralThreshold = th;}
2924941c 104 void SetTOFEnergyThreshold (Float_t th) {fTOFEnThreshold = th;}
105 void SetDispersionEnergyThreshold (Float_t th) {fDispEnThreshold = th;}
106 void SetDispersionMultiplicityThreshold (Int_t th) {fDispMultThreshold = th;}
fb7b51ad 107
adcca1e6 108 //Switch to "on flyght" mode, without writing to TreeR and file
5d0435dd 109 void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;}
702ab87e 110 void Print(const Option_t * = "") const ;
e3817e5f 111
407d15b3 112 void GetVertex(void) ; //Extracts vertex in current event
113
8e8eae84 114 virtual const char * Version() const { return "pid-v1" ; }
e3817e5f 115
8c140292 116 AliPHOSPIDv1 & operator = (const AliPHOSPIDv1 & /*pid*/) { return *this ;}
e3817e5f 117
118private:
50739f15 119
c6987a88 120 const TString BranchName() const ;
e3817e5f 121 virtual void Init() ;
122 virtual void InitParameters() ;
123 void MakeRecParticles(void ) ;
35adb638 124 void MakePID(void) ;
125
126 //Functions to calculate the PID probability
127 // Double_t ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) ;
17323043 128 Double_t GausF (Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x
129 Double_t GausPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x
130 Double_t LandauF(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x
131 Double_t LandauPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x
2cc71c1e 132 // Relative Distance CPV-EMC
26aa7e4a 133 Int_t GetCPVBit (AliPHOSTrackSegment * ts, Int_t EffPur, Float_t e) const;
fc7e2f43 134 Int_t GetPrincipalBit (TString particle, const Double_t* P, Int_t EffPur, Float_t e)const ; //Principal cut
135 Int_t GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const;
136 Int_t GetHardPi0Bit (AliPHOSEmcRecPoint * emc) const;
8d4608b5 137 TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv)const ;
e3817e5f 138 void PrintRecParticles(Option_t * option) ;
90cceaf6 139 virtual void WriteRecParticles() ;
e3817e5f 140 void SetParameters() ; //Fills the matrix of parameters
adcca1e6 141 void Unload();
e3817e5f 142
35adb638 143 //PID population
144 void SetInitPID(const Double_t * pid) ;
145 void GetInitPID(Double_t * pid) const ;
e3817e5f 146
35adb638 147private:
148 Bool_t fBayesian ; // Do PID bayesian
e3817e5f 149 Bool_t fDefaultInit; //! kTRUE if the task was created by defaut ctor (only parameters are initialized)
adcca1e6 150 Bool_t fWrite ; //! To write result to file
e3817e5f 151 Int_t fNEvent ; //! current event number
152 TString fFileNamePrincipalPhoton ; // File name of the photon principals
153 TString fFileNamePrincipalPi0 ; // File name of the pi0 principals
154 TString fFileNameParameters ; // File name with PID parameters
155 TPrincipal *fPrincipalPhoton ; //! TPrincipal from photon pca file
156 TPrincipal *fPrincipalPi0 ; //! TPrincipal from pi0 pca file
157 Double_t *fX ; //! Shower shape for the principal data
158 Double_t *fPPhoton ; //! Principal photon eigenvalues
159 Double_t *fPPi0 ; //! Principal pi0 eigenvalues
160 Int_t fRecParticlesInRun ; //! Total number of recparticles in one run
e8d02863 161 TMatrixF *fParameters; //! Matrix of identification Parameters
cc1fe362 162
407d15b3 163 TVector3 fVtx ; //! Vertex position in current event
164
35adb638 165 //Initial pid population
304864ab 166 Double_t fInitPID[AliPID::kSPECIESN] ; // Initial population to do bayesian PID
35adb638 167 // pid probability function parameters
168 // ToF
2924941c 169 Double_t fTphoton[3] ; // gaussian tof response for photon
170 TFormula * fTFphoton ; // the formula
171 Double_t fTpiong[3] ; // gaussian tof response for pions
172 TFormula * fTFpiong ; // the formula
173 Double_t fTkaong[3] ; // landau tof response for kaons
174 TFormula * fTFkaong ; // the formula
175 Double_t fTkaonl[3] ; // landau tof response for kaons
176 TFormula * fTFkaonl ; // the formula
177 Double_t fThhadrong[3] ; // gaus tof response for heavy hadrons
178 TFormula * fTFhhadrong ; // the formula
179 Double_t fThhadronl[3] ; // landau tof response for heavy hadrons
180 TFormula * fTFhhadronl ; // the formula
35adb638 181
182 //Shower dispersion
2924941c 183 Double_t fDmuon[3] ; // gaussian ss response for muon
184 TFormula * fDFmuon ; // the formula
185 Double_t fDphoton[10] ; // gaussian ss response for EM
186 Double_t fDpi0[10] ; // gaussian ss response for pi0
187 Double_t fDhadron[10] ; // gaussian ss response for hadrons
188
189 Double_t fXelectron[10] ; // gaussian emc-cpv distance response for electron
190 Double_t fXcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */
191 Double_t fZelectron[10] ; // gaussian emc-cpv distance response for electron
192 Double_t fZcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */
193
cc1fe362 194
fb7b51ad 195 Double_t fERecWeightPar[4] ; // gaussian tof response for photon
196 TFormula * fERecWeight ; // the formula
2924941c 197 Double_t fChargedNeutralThreshold ; //Threshold to differentiate between charged and neutral
198 Float_t fTOFEnThreshold; //Maximum energy to use TOF
199 Float_t fDispEnThreshold; //Minimum energy to use shower shape
200 Int_t fDispMultThreshold ; //Minimum multiplicity to use shower shape
201
202 ClassDef( AliPHOSPIDv1,12) // Particle identifier implementation version 1
6ad0bfa0 203
204};
205
26d4b141 206#endif // AliPHOSPIDV1_H