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