3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //_________________________________________________________________________
9 // Implementation of the PHOS manager class for fast simulations
10 // Tracks particles until the reach a grossly designed PHOS module
11 // Modify the particles property (momentum, energy, type) according to
12 // the PHOS response function. The result is called a virtual reconstructed
15 //*-- Author: Yves Schutz (SUBATECH)
17 // --- ROOT system ---
18 //#include "TClonesArray.h"
25 // --- AliRoot header files ---
27 class AliPHOSGeometry ;
28 class AliPHOSFastRecParticle ;
30 class AliPHOSvFast : public AliPHOS {
35 AliPHOSvFast(const char *name, const char *title="") ;
36 AliPHOSvFast(const AliPHOSvFast & fast) : AliPHOS(fast) {
37 // cpy ctor: no implementation yet
38 // requested by the Coding Convention
41 virtual ~AliPHOSvFast(void) ;
43 void AddRecParticle(const AliPHOSFastRecParticle & rp) ; // adds primary particle to the RecParticles list
44 virtual void BuildGeometry(void) ; // creates the geometry for the ROOT display
45 virtual void CreateGeometry(void) ; // creates the geometry for GEANT
46 Float_t GetBigBox(Int_t index) const;
47 virtual void Init(void) ; // does nothing
48 virtual Int_t IsVersion(void) const {
49 // Gives the version number
53 void MakeBranch(Option_t* opt);
54 Double_t MakeEnergy(const Double_t energy) ; // makes the detected energy
55 TVector3 MakePosition(const Double_t energy, const TVector3 pos, const Double_t th, const Double_t ph) ;
56 // makes the detected position
57 void MakeRecParticle(const Int_t modid, const TVector3 pos, AliPHOSFastRecParticle & rp) ; // makes a reconstructes particle from primary
58 Int_t MakeType(AliPHOSFastRecParticle & rp) ; // gets the detected type of particle
59 // gets TClonesArray of reconstructed particles
60 TClonesArray * FastRecParticles() const { return fFastRecParticles ; }
61 virtual void ResetPoints() ;
62 void ResetFastRecParticles() ;
63 void SetBigBox(Int_t index, Float_t value) ;
64 Double_t SigmaE(Double_t energy) ; // calulates the energy resolution at a given Energy
65 Double_t SigmaP(Double_t energy, Double_t inc) ; // calulates the position resolution at a given Energy at a given incidence
66 virtual void StepManager(void) ; // does the tracking through PHOS and a preliminary digitalization
67 virtual const TString Version(void)const {
69 return TString("vFast") ;
72 AliPHOSvFast & operator = (const AliPHOSvFast & ) {
73 // assignement operator requested by coding convention but not needed
80 Float_t fBigBoxX ; // main box containing all PHOS (EMC+PPSD)
81 Float_t fBigBoxY ; // main box containing all PHOS (EMC+PPSD)
82 Float_t fBigBoxZ ; // main box containing all PHOS (EMC+PPSD)
83 TClonesArray * fFastRecParticles ; // list of particles modified by the response function
84 Int_t fNRecParticles ; // number of detected particles
85 TRandom fRan ; // random number generator
86 Double_t fResPara1 ; // parameter for the energy resolution dependence
87 Double_t fResPara2 ; // parameter for the energy resolution dependence
88 Double_t fResPara3 ; // parameter for the energy resolution dependence
89 Double_t fPosParaA0 ; // parameter for the position resolution
90 Double_t fPosParaA1 ; // parameter for the position resolution
91 Double_t fPosParaB0 ; // parameter for the position resolution
92 Double_t fPosParaB1 ; // parameter for the position resolution
93 Double_t fPosParaB2 ; // parameter for the position resolution
95 ClassDef(AliPHOSvFast,1) // Implementation of the PHOS manager class for fast simulations
99 #endif // AliPHOSVFAST_H