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1 | #ifndef ALIPHOSPIDV1_H | |
2 | #define ALIPHOSPIDV1_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | /* History of cvs commits: | |
9 | * | |
10 | * $Log$ | |
11 | * Revision 1.60 2007/04/01 15:40:15 kharlov | |
12 | * Correction for actual vertex position implemented | |
13 | * | |
14 | * Revision 1.59 2007/03/06 06:57:46 kharlov | |
15 | * DP:calculation of distance to CPV done in TSM | |
16 | * | |
17 | * Revision 1.58 2006/04/12 11:32:03 alibrary | |
18 | * Simplification of Makefile and some small corrections | |
19 | * | |
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 | * | |
23 | * Revision 1.56 2005/05/28 14:19:04 schutz | |
24 | * Compilation warnings fixed by T.P. | |
25 | * | |
26 | */ | |
27 | ||
28 | //_________________________________________________________________________ | |
29 | // Implementation version v1 of the PHOS particle identifier | |
30 | // Identification is based on information from CPV and EMC | |
31 | // Oh yeah | |
32 | //*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa. | |
33 | ||
34 | // --- Standard library --- | |
35 | ||
36 | // --- ROOT system --- | |
37 | class TCanvas ; | |
38 | class TFolder ; | |
39 | class TFormula; | |
40 | class TPrincipal ; | |
41 | class TROOT ; | |
42 | class TTree ; | |
43 | #include "TVector3.h" | |
44 | #include <TMatrixDfwd.h> | |
45 | ||
46 | // --- AliRoot header files --- | |
47 | class AliPHOSClusterizerv1 ; | |
48 | class AliPHOSCpvRecPoint ; | |
49 | class AliPHOSEmcRecPoint ; | |
50 | class AliPHOSTrackSegment ; | |
51 | class AliPHOSTrackSegmentMakerv1 ; | |
52 | #include "AliPHOSPID.h" | |
53 | #include "AliPID.h" | |
54 | ||
55 | class AliPHOSPIDv1 : public AliPHOSPID { | |
56 | ||
57 | public: | |
58 | ||
59 | AliPHOSPIDv1() ; // ctor | |
60 | AliPHOSPIDv1(AliPHOSGeometry *geom); | |
61 | AliPHOSPIDv1(const AliPHOSPIDv1 & pid) ; // cpy ctor | |
62 | ||
63 | virtual ~AliPHOSPIDv1() ; // dtor | |
64 | ||
65 | virtual void TrackSegments2RecParticles(Option_t *option); // Does the job | |
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 | ||
73 | // Get PID parameters as they are defined in fParameters | |
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; | |
80 | ||
81 | // Get energy-dependent PID parameters | |
82 | Float_t GetCpv2EmcDistanceCut (TString axis, Float_t e) const ; | |
83 | Float_t GetEllipseParameter (TString particle, TString param, Float_t e) const; | |
84 | ||
85 | Double_t GetThresholdChargedNeutral () const {return fChargedNeutralThreshold;} | |
86 | Float_t GetTOFEnergyThreshold () const {return fTOFEnThreshold;} | |
87 | Float_t GetDispersionEnergyThreshold () const {return fDispEnThreshold;} | |
88 | Int_t GetDispersionMultiplicityThreshold () const {return fDispMultThreshold;} | |
89 | ||
90 | //Do bayesian PID | |
91 | void SetBayesianPID(Bool_t set){ fBayesian = set ;} | |
92 | ||
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 | ||
101 | void SetThresholdChargedNeutral (Double_t th) {fChargedNeutralThreshold = th;} | |
102 | void SetTOFEnergyThreshold (Float_t th) {fTOFEnThreshold = th;} | |
103 | void SetDispersionEnergyThreshold (Float_t th) {fDispEnThreshold = th;} | |
104 | void SetDispersionMultiplicityThreshold (Int_t th) {fDispMultThreshold = th;} | |
105 | ||
106 | //Switch to "on flyght" mode, without writing to TreeR and file | |
107 | void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;} | |
108 | void Print(const Option_t * = "") const ; | |
109 | ||
110 | void GetVertex(void) ; //Extracts vertex in current event | |
111 | ||
112 | virtual const char * Version() const { return "pid-v1" ; } | |
113 | ||
114 | AliPHOSPIDv1 & operator = (const AliPHOSPIDv1 & /*pid*/) { return *this ;} | |
115 | ||
116 | private: | |
117 | ||
118 | virtual void InitParameters() ; | |
119 | void MakeRecParticles(void ) ; | |
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) ; | |
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 | |
128 | // Relative Distance CPV-EMC | |
129 | Int_t GetCPVBit (AliPHOSTrackSegment * ts, Int_t EffPur, Float_t e) const; | |
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; | |
133 | TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv)const ; | |
134 | void PrintRecParticles(Option_t * option) ; | |
135 | void SetParameters() ; //Fills the matrix of parameters | |
136 | ||
137 | //PID population | |
138 | void SetInitPID(const Double_t * pid) ; | |
139 | void GetInitPID(Double_t * pid) const ; | |
140 | ||
141 | private: | |
142 | Bool_t fBayesian ; // Do PID bayesian | |
143 | Bool_t fDefaultInit; //! kTRUE if the task was created by defaut ctor (only parameters are initialized) | |
144 | Bool_t fWrite ; //! To write result to file | |
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 | |
153 | TMatrixF *fParameters; //! Matrix of identification Parameters | |
154 | ||
155 | TVector3 fVtx ; //! Vertex position in current event | |
156 | ||
157 | //Initial pid population | |
158 | Double_t fInitPID[AliPID::kSPECIESCN] ; // Initial population to do bayesian PID | |
159 | // pid probability function parameters | |
160 | // ToF | |
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 | |
173 | ||
174 | //Shower dispersion | |
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 | ||
186 | ||
187 | Double_t fERecWeightPar[4] ; // gaussian tof response for photon | |
188 | TFormula * fERecWeight ; // the formula | |
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 | ||
194 | ClassDef( AliPHOSPIDv1,13) // Particle identifier implementation version 1 | |
195 | ||
196 | }; | |
197 | ||
198 | #endif // AliPHOSPIDV1_H |