3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 //_________________________________________________________________________
10 // Implementation version v1 of the PHOS particle identifier
11 // Identification is based on information from CPV and EMC
13 //*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa.
15 // --- ROOT system ---
21 // --- Standard library ---
23 // --- AliRoot header files ---
24 class AliPHOSEmcRecPoint ;
25 class AliPHOSRecPoint ;
27 #include "AliPHOSPID.h"
29 class AliPHOSPIDv1 : public AliPHOSPID {
33 AliPHOSPIDv1() ; // ctor
34 AliPHOSPIDv1(const char* headerFile, const char * tsBranch = "Default", const char * from = 0) ;
36 virtual ~AliPHOSPIDv1() ; // dtor
38 virtual void Exec(Option_t * option) ;
39 virtual char * GetRecParticlesBranch()const {return (char*) fRecParticlesTitle.Data() ;}
40 virtual char * GetTrackSegmentsBranch()const{return (char*) fTrackSegmentsTitle.Data(); }
41 virtual const Int_t GetRecParticlesInRun() const {return fRecParticlesInRun ;}
43 virtual void Print(Option_t * option) const {}
45 // Get CpvtoEmcDistanceCut and TimeGate parameters depending on the custer energy and
46 // Purity-Efficiency point (possible options "HIGH EFFICIENCY" "MEDIUM EFFICIENCY" "LOW
47 // EFFICIENCY" and 3 more options changing EFFICIENCY by PURITY)
48 Double_t GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur) ;
49 Double_t GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) ;
51 //Get files that contain the PCA
52 const TString GetPrincipalFile5( )const {return fFileName5 ;}
53 const TString GetPrincipalFilePar5( )const {return fFileNamePar5 ;}
54 const TString GetPrincipalFile100( )const {return fFileName100 ;}
55 const TString GetPrincipalFilePar100( )const {return fFileNamePar100 ;}
57 // Set all parameters necessary in the PID depending on the custer energy and
58 // Purity-Efficiency point (possible options "HIGH EFFICIENCY" "MEDIUM EFFICIENCY" "LOW
59 // EFFICIENCY" and 3 more options changing EFFICIENCY by PURITY)
60 void SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut) ;
61 void SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate) ;
62 void SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x) ;
63 void SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y) ;
64 void SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a) ;
65 void SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b) ;
66 void SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle) ;
67 void SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle) ;
69 //Get and Set energy calibration parameters
70 Float_t GetACalParameter() {return fACalParameter ;}
71 Float_t GetBCalParameter() {return fBCalParameter ;}
72 Float_t GetCCalParameter() {return fCCalParameter ;}
73 void SetACalParameter(Float_t a) { fACalParameter = a ;}
74 void SetBCalParameter(Float_t b) { fBCalParameter = b ;}
75 void SetCCalParameter(Float_t c) { fCCalParameter = c ;}
78 Float_t GetEnergyAnalysisCut() {return fEnergyAnalysisCut ;}
79 void SetEnergyAnalysisCut(Float_t e) { fEnergyAnalysisCut = e ;}
81 virtual void SetTrackSegmentsBranch(const char* title) { fTrackSegmentsTitle = title;}
82 virtual void SetRecParticlesBranch (const char* title) { fRecParticlesTitle = title;}
83 virtual const char * Version() const { return "pid-v1" ; }
87 const TString BranchName() const ;
89 virtual void InitParameters() ;
90 void MakeRecParticles(void ) ;
91 // Relative Distance CPV-EMC
92 Float_t GetDistance(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv, Option_t * Axis)const ;
93 Int_t GetPrincipalSign(Double_t* P, Int_t ell, Int_t eff_pur)const ; //Principal cut
94 TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const ;
95 void PrintRecParticles(Option_t * option) ;
96 // Gives in wich cluster energy range is the event
97 void GetClusterOption(const Float_t Cluster_En,const Bool_t range) ;
98 // Gives the Efficiency-Purity point.
99 Int_t GetEffPurOption(const TString Eff_Pur)const ;
100 virtual void WriteRecParticles(Int_t event) ;
101 void SetParameters() ; //Fills the matrix of parameters
102 //Selects principal and parameters file in function of energy range.
103 void GetAnalysisParameters(Float_t ClusterEn) ;
104 Double_t CalibratedEnergy(Float_t e) ; //Calibrates energy.
109 Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
110 TString fFileName5 ; // File that contains the Principal file for analysis from 0.5 to 5 GeV
111 TString fFileName100 ; // File that contains the Principal file for analysis from 0.5 to 100 GeV
112 TString fFileNamePar5 ; // File that contains the parameters for analysis from 0.5 to 5 GeV
113 TString fFileNamePar100 ;// File that contains the parameters for analysis from 0.5 to 100 GeV
116 TString fFrom ; // name of Recpoints and TrackSegments
117 TString fHeaderFileName ; // file name with event header
118 TString fTrackSegmentsTitle; // branch name with track segments
119 TString fRecPointsTitle ; // branch name with rec points
120 TString fRecParticlesTitle ; // branch name with rec particles
122 Int_t fNEvent ; //! current event number
123 AliPHOSClusterizer * fClusterizer ; //! clusterizer
124 AliPHOSTrackSegmentMaker * fTSMaker ; //! track segment maker
126 TPrincipal * fPrincipal5 ; //! TPrincipal from fFileName5
127 TPrincipal * fPrincipal100 ; //! TPrincipal from fFileName100
128 TPrincipal * fPrincipal ; //! TPrincipal copy
129 Double_t * fX ; //! Principal data
130 Double_t * fP ; //! Principal eigenvalues
132 Int_t fRecParticlesInRun ; //! Total number of recparticles in one run
134 TMatrixD * fParameters5 ; //! Matrix of identification Parameters 0.5 to 5 GeV
135 TMatrixD * fParameters100 ; //! Matrix of identification Parameters 5-100 GeV
136 TMatrixD * fParameters; //! Matrix copy of identification Parameters
137 Float_t fEnergyAnalysisCut; // Energy to change from one PCA to the other.
138 Int_t fCluster; // Cluster energy range to choose parameters
139 Int_t fClusterrcpv; // Cluster energy range to choos rcpv parameters
140 Int_t fMatrixExtraRow; // Different size of the parameters file. Depends on range
142 Float_t fACalParameter ;// A parameter energy calibration Encal=A+B*En+C*En^2
143 Float_t fBCalParameter ;// B parameter energy calibration Encal=A+B*En+C*En^2
144 Float_t fCCalParameter ;// B parameter energy calibration Encal=A+B*En+C*En^2
146 ClassDef( AliPHOSPIDv1,5) // Particle identifier implementation version 1
150 #endif // AliPHOSPIDV1_H