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)const ;
49 Double_t GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur)const ;
50 const TString GetPrincipalFile( )const {return fFileName ;}
51 const TString GetPrincipalFilePar( )const {return fFileNamePar ;}
52 void SetPrincipalFileOptions(TString OptFileName) ;
54 // Set all parameters necessary in the PID depending on the custer energy and
55 // Purity-Efficiency point (possible options "HIGH EFFICIENCY" "MEDIUM EFFICIENCY" "LOW
56 // EFFICIENCY" and 3 more options changing EFFICIENCY by PURITY)
57 void SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut) ;
58 void SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate) ;
59 void SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x) ;
60 void SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y) ;
61 void SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a) ;
62 void SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b) ;
63 void SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle) ;
64 void SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle) ;
67 virtual void SetTrackSegmentsBranch(const char* title) { fTrackSegmentsTitle = title;}
68 virtual void SetRecParticlesBranch (const char* title) { fRecParticlesTitle = title;}
69 virtual const char * Version() const { return "pid-v1" ; }
73 const TString AliPHOSPIDv1::BranchName() const ;
75 void MakeRecParticles(void ) ;
76 Float_t GetDistance(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv, Option_t * Axis)const ; // Relative Distance CPV-EMC
77 Int_t GetPrincipalSign(Double_t* P, Int_t ell, Int_t eff_pur)const ; //Principal cut
78 TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const ;
79 void PrintRecParticles(Option_t * option) ;
80 void SetParameters() ;
81 virtual void WriteRecParticles(Int_t event) ;
85 TString fFileName ; // Name of the file which contains the Principal file
86 TString fFileNamePar ; // Name of the file which contains the parameters
87 TString fOptFileName ; // choose de parameters and principal file
88 TString fFrom ; // name of Recpoints and TrackSegments
89 TString fHeaderFileName ; // file name with event header
90 TString fTrackSegmentsTitle; // branch name with track segments
91 TString fRecPointsTitle ; // branch name with rec points
92 TString fRecParticlesTitle ; // branch name with rec particles
94 Int_t fNEvent ; //! current event number
95 AliPHOSClusterizer * fClusterizer ; //! clusterizer
96 AliPHOSTrackSegmentMaker * fTSMaker ; //! track segment maker
97 TPrincipal * fPrincipal ; //! TPrincipal from fFileName
98 Int_t fRecParticlesInRun ; //! Total number of recparticles in one run
99 Double_t * fX ; //! Principal data
100 Double_t * fP ; //! Principal eigenvalues
101 TMatrixD * fParameters ; //! Matrix of all identification Parameters
103 ClassDef( AliPHOSPIDv1,2) // Particle identifier implementation version 1
107 #endif // AliPHOSPIDV1_H