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"
24 // --- AliRoot header files ---
26 class AliPHOSGeometry ;
27 class AliPHOSFastRecParticle ;
29 class AliPHOSvFast : public AliPHOS {
34 AliPHOSvFast(const char *name, const char *title="") ;
35 AliPHOSvFast(AliPHOSvFast & fast) : AliPHOS(fast) {
38 virtual ~AliPHOSvFast(void) ;
40 virtual void Copy(AliPHOSvFast & fast) ;
41 void AddRecParticle(const AliPHOSFastRecParticle & rp) ; // adds primary particle to the RecParticles list
42 virtual void BuildGeometry(void) ; // creates the geometry for the ROOT display
43 virtual void CreateGeometry(void) ; // creates the geometry for GEANT
44 Float_t GetBigBox(Int_t index) const;
45 virtual void Init(void) ; // does nothing
46 virtual Int_t IsVersion(void) const {
47 // Gives the version number
51 void MakeBranch(Option_t* opt);
52 Double_t MakeEnergy(const Double_t energy) ; // makes the detected energy
53 TVector3 MakePosition(const Double_t energy, const TVector3 pos, const Double_t th, const Double_t ph) ;
54 // makes the detected position
55 void MakeRecParticle(const Int_t modid, const TVector3 pos, AliPHOSFastRecParticle & rp) ; // makes a reconstructes particle from primary
56 Int_t MakeType(AliPHOSFastRecParticle & rp) ; // gets the detected type of particle
57 // gets TClonesArray of reconstructed particles
58 TClonesArray * FastRecParticles() const { return fFastRecParticles ; }
59 virtual void ResetPoints() ;
60 void ResetFastRecParticles() ;
61 void SetBigBox(Int_t index, Float_t value) ;
62 Double_t SigmaE(Double_t energy) ; // calulates the energy resolution at a given Energy
63 Double_t SigmaP(Double_t energy, Double_t inc) ; // calulates the position resolution at a given Energy at a given incidence
64 virtual void StepManager(void) ; // does the tracking through PHOS and a preliminary digitalization
65 virtual const TString Version(void)const {
67 return TString("vFast") ;
70 AliPHOSvFast & operator = (const AliPHOSvFast & ) {
71 Fatal("operator =", "not implemented") ; return *this ;
76 Float_t fBigBoxX ; // main box containing all PHOS (EMC+PPSD)
77 Float_t fBigBoxY ; // main box containing all PHOS (EMC+PPSD)
78 Float_t fBigBoxZ ; // main box containing all PHOS (EMC+PPSD)
79 TClonesArray * fFastRecParticles ; // list of particles modified by the response function
80 Int_t fNRecParticles ; // number of detected particles
81 TRandom fRan ; // random number generator
82 Double_t fResPara1 ; // parameter for the energy resolution dependence
83 Double_t fResPara2 ; // parameter for the energy resolution dependence
84 Double_t fResPara3 ; // parameter for the energy resolution dependence
85 Double_t fPosParaA0 ; // parameter for the position resolution
86 Double_t fPosParaA1 ; // parameter for the position resolution
87 Double_t fPosParaB0 ; // parameter for the position resolution
88 Double_t fPosParaB1 ; // parameter for the position resolution
89 Double_t fPosParaB2 ; // parameter for the position resolution
91 ClassDef(AliPHOSvFast,1) // Implementation of the PHOS manager class for fast simulations
95 #endif // AliPHOSVFAST_H