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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 | * $Log$ | |
9a2cdbdf | 11 | * Revision 1.60 2007/04/01 15:40:15 kharlov |
12 | * Correction for actual vertex position implemented | |
13 | * | |
407d15b3 | 14 | * Revision 1.59 2007/03/06 06:57:46 kharlov |
15 | * DP:calculation of distance to CPV done in TSM | |
16 | * | |
26aa7e4a | 17 | * Revision 1.58 2006/04/12 11:32:03 alibrary |
18 | * Simplification of Makefile and some small corrections | |
19 | * | |
8faf5ae4 | 20 | * Revision 1.57 2006/01/23 17:51:48 hristov |
21 | * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up | |
22 | * | |
e8d02863 | 23 | * Revision 1.56 2005/05/28 14:19:04 schutz |
24 | * Compilation warnings fixed by T.P. | |
25 | * | |
702ab87e | 26 | */ |
b2a60966 | 27 | |
28 | //_________________________________________________________________________ | |
29 | // Implementation version v1 of the PHOS particle identifier | |
148b2bba | 30 | // Identification is based on information from CPV and EMC |
2f04ed65 | 31 | // Oh yeah |
148b2bba | 32 | //*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa. |
6ad0bfa0 | 33 | |
8faf5ae4 | 34 | // --- Standard library --- |
e8d02863 | 35 | |
8faf5ae4 | 36 | // --- ROOT system --- |
c947e71a | 37 | class TCanvas ; |
38 | class TFolder ; | |
acb5beb7 | 39 | class TFormula; |
8faf5ae4 | 40 | class TPrincipal ; |
41 | class TROOT ; | |
42 | class TTree ; | |
6b620773 | 43 | #include "TVector3.h" |
8faf5ae4 | 44 | #include <TMatrixDfwd.h> |
45 | ||
6ad0bfa0 | 46 | // --- AliRoot header files --- |
c947e71a | 47 | class AliPHOSClusterizerv1 ; |
8faf5ae4 | 48 | class AliPHOSCpvRecPoint ; |
49 | class AliPHOSEmcRecPoint ; | |
26aa7e4a | 50 | class AliPHOSTrackSegment ; |
c947e71a | 51 | class AliPHOSTrackSegmentMakerv1 ; |
26d4b141 | 52 | #include "AliPHOSPID.h" |
fb7b51ad | 53 | #include "AliPID.h" |
8faf5ae4 | 54 | |
26d4b141 | 55 | class AliPHOSPIDv1 : public AliPHOSPID { |
50739f15 | 56 | |
e3817e5f | 57 | public: |
50739f15 | 58 | |
88cb7938 | 59 | AliPHOSPIDv1() ; // ctor |
9a2cdbdf | 60 | AliPHOSPIDv1(AliPHOSGeometry *geom); |
88cb7938 | 61 | AliPHOSPIDv1(const AliPHOSPIDv1 & pid) ; // cpy ctor |
e3817e5f | 62 | |
7acf6008 | 63 | virtual ~AliPHOSPIDv1() ; // dtor |
50739f15 | 64 | |
9a2cdbdf | 65 | virtual void TrackSegments2RecParticles(Option_t *option); // Does the job |
e3817e5f | 66 | |
67 | //Get file name that contain the PCA | |
68 | const TString GetFileNamePrincipal(TString particle) const; | |
69 | ||
70 | //Get file name that contain PID parameters | |
71 | const TString GetFileNameParameters() const {return fFileNameParameters ;} | |
72 | ||
e3817e5f | 73 | // Get PID parameters as they are defined in fParameters |
fc7e2f43 | 74 | Float_t GetParameterCalibration (Int_t i) const; |
75 | Float_t GetParameterCpv2Emc (Int_t i, TString axis) const; | |
76 | Float_t GetParameterTimeGate (Int_t i) const; | |
77 | Float_t GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const ; | |
78 | Float_t GetParameterPhotonBoundary (Int_t i) const; | |
79 | Float_t GetParameterPi0Boundary (Int_t i) const; | |
e3817e5f | 80 | |
81 | // Get energy-dependent PID parameters | |
fc7e2f43 | 82 | Float_t GetCpv2EmcDistanceCut (TString axis, Float_t e) const ; |
83 | Float_t GetEllipseParameter (TString particle, TString param, Float_t e) const; | |
e3817e5f | 84 | |
fb7b51ad | 85 | Double_t GetThresholdChargedNeutral () const {return fChargedNeutralThreshold;} |
2924941c | 86 | Float_t GetTOFEnergyThreshold () const {return fTOFEnThreshold;} |
87 | Float_t GetDispersionEnergyThreshold () const {return fDispEnThreshold;} | |
88 | Int_t GetDispersionMultiplicityThreshold () const {return fDispMultThreshold;} | |
fb7b51ad | 89 | |
c947e71a | 90 | //Do bayesian PID |
91 | void SetBayesianPID(Bool_t set){ fBayesian = set ;} | |
92 | ||
e3817e5f | 93 | // Set PID parameters to change appropriate element of fParameters |
94 | void SetParameterCalibration (Int_t i, Float_t param); | |
95 | void SetParameterCpv2Emc (Int_t i, TString axis, Float_t cut) ; | |
96 | void SetParameterTimeGate (Int_t i, Float_t gate) ; | |
97 | void SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t value) ; | |
98 | void SetParameterPhotonBoundary(Int_t i, Float_t param); | |
99 | void SetParameterPi0Boundary (Int_t i, Float_t param); | |
100 | ||
fb7b51ad | 101 | void SetThresholdChargedNeutral (Double_t th) {fChargedNeutralThreshold = th;} |
2924941c | 102 | void SetTOFEnergyThreshold (Float_t th) {fTOFEnThreshold = th;} |
103 | void SetDispersionEnergyThreshold (Float_t th) {fDispEnThreshold = th;} | |
104 | void SetDispersionMultiplicityThreshold (Int_t th) {fDispMultThreshold = th;} | |
fb7b51ad | 105 | |
adcca1e6 | 106 | //Switch to "on flyght" mode, without writing to TreeR and file |
5d0435dd | 107 | void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;} |
702ab87e | 108 | void Print(const Option_t * = "") const ; |
e3817e5f | 109 | |
407d15b3 | 110 | void GetVertex(void) ; //Extracts vertex in current event |
111 | ||
8e8eae84 | 112 | virtual const char * Version() const { return "pid-v1" ; } |
e3817e5f | 113 | |
8c140292 | 114 | AliPHOSPIDv1 & operator = (const AliPHOSPIDv1 & /*pid*/) { return *this ;} |
e3817e5f | 115 | |
116 | private: | |
50739f15 | 117 | |
e3817e5f | 118 | virtual void InitParameters() ; |
119 | void MakeRecParticles(void ) ; | |
35adb638 | 120 | void MakePID(void) ; |
121 | ||
122 | //Functions to calculate the PID probability | |
123 | // Double_t ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) ; | |
17323043 | 124 | Double_t GausF (Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x |
125 | Double_t GausPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x | |
126 | Double_t LandauF(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x | |
127 | Double_t LandauPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x | |
2cc71c1e | 128 | // Relative Distance CPV-EMC |
26aa7e4a | 129 | Int_t GetCPVBit (AliPHOSTrackSegment * ts, Int_t EffPur, Float_t e) const; |
fc7e2f43 | 130 | Int_t GetPrincipalBit (TString particle, const Double_t* P, Int_t EffPur, Float_t e)const ; //Principal cut |
131 | Int_t GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const; | |
132 | Int_t GetHardPi0Bit (AliPHOSEmcRecPoint * emc) const; | |
8d4608b5 | 133 | TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv)const ; |
e3817e5f | 134 | void PrintRecParticles(Option_t * option) ; |
e3817e5f | 135 | void SetParameters() ; //Fills the matrix of parameters |
136 | ||
35adb638 | 137 | //PID population |
138 | void SetInitPID(const Double_t * pid) ; | |
139 | void GetInitPID(Double_t * pid) const ; | |
e3817e5f | 140 | |
35adb638 | 141 | private: |
142 | Bool_t fBayesian ; // Do PID bayesian | |
e3817e5f | 143 | Bool_t fDefaultInit; //! kTRUE if the task was created by defaut ctor (only parameters are initialized) |
adcca1e6 | 144 | Bool_t fWrite ; //! To write result to file |
e3817e5f | 145 | TString fFileNamePrincipalPhoton ; // File name of the photon principals |
146 | TString fFileNamePrincipalPi0 ; // File name of the pi0 principals | |
147 | TString fFileNameParameters ; // File name with PID parameters | |
148 | TPrincipal *fPrincipalPhoton ; //! TPrincipal from photon pca file | |
149 | TPrincipal *fPrincipalPi0 ; //! TPrincipal from pi0 pca file | |
150 | Double_t *fX ; //! Shower shape for the principal data | |
151 | Double_t *fPPhoton ; //! Principal photon eigenvalues | |
152 | Double_t *fPPi0 ; //! Principal pi0 eigenvalues | |
e8d02863 | 153 | TMatrixF *fParameters; //! Matrix of identification Parameters |
cc1fe362 | 154 | |
407d15b3 | 155 | TVector3 fVtx ; //! Vertex position in current event |
156 | ||
35adb638 | 157 | //Initial pid population |
304864ab | 158 | Double_t fInitPID[AliPID::kSPECIESN] ; // Initial population to do bayesian PID |
35adb638 | 159 | // pid probability function parameters |
160 | // ToF | |
2924941c | 161 | Double_t fTphoton[3] ; // gaussian tof response for photon |
162 | TFormula * fTFphoton ; // the formula | |
163 | Double_t fTpiong[3] ; // gaussian tof response for pions | |
164 | TFormula * fTFpiong ; // the formula | |
165 | Double_t fTkaong[3] ; // landau tof response for kaons | |
166 | TFormula * fTFkaong ; // the formula | |
167 | Double_t fTkaonl[3] ; // landau tof response for kaons | |
168 | TFormula * fTFkaonl ; // the formula | |
169 | Double_t fThhadrong[3] ; // gaus tof response for heavy hadrons | |
170 | TFormula * fTFhhadrong ; // the formula | |
171 | Double_t fThhadronl[3] ; // landau tof response for heavy hadrons | |
172 | TFormula * fTFhhadronl ; // the formula | |
35adb638 | 173 | |
174 | //Shower dispersion | |
2924941c | 175 | Double_t fDmuon[3] ; // gaussian ss response for muon |
176 | TFormula * fDFmuon ; // the formula | |
177 | Double_t fDphoton[10] ; // gaussian ss response for EM | |
178 | Double_t fDpi0[10] ; // gaussian ss response for pi0 | |
179 | Double_t fDhadron[10] ; // gaussian ss response for hadrons | |
180 | ||
181 | Double_t fXelectron[10] ; // gaussian emc-cpv distance response for electron | |
182 | Double_t fXcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */ | |
183 | Double_t fZelectron[10] ; // gaussian emc-cpv distance response for electron | |
184 | Double_t fZcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */ | |
185 | ||
cc1fe362 | 186 | |
fb7b51ad | 187 | Double_t fERecWeightPar[4] ; // gaussian tof response for photon |
188 | TFormula * fERecWeight ; // the formula | |
2924941c | 189 | Double_t fChargedNeutralThreshold ; //Threshold to differentiate between charged and neutral |
190 | Float_t fTOFEnThreshold; //Maximum energy to use TOF | |
191 | Float_t fDispEnThreshold; //Minimum energy to use shower shape | |
192 | Int_t fDispMultThreshold ; //Minimum multiplicity to use shower shape | |
193 | ||
9a2cdbdf | 194 | ClassDef( AliPHOSPIDv1,13) // Particle identifier implementation version 1 |
6ad0bfa0 | 195 | |
196 | }; | |
197 | ||
26d4b141 | 198 | #endif // AliPHOSPIDV1_H |