3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 /* History of cvs commits:
13 //_________________________________________________________________________
14 // Implementation of the PHOS manager class for fast simulations
15 // Tracks particles until the reach a grossly designed PHOS module
16 // Modify the particles property (momentum, energy, type) according to
17 // the PHOS response function. The result is called a virtual reconstructed
20 //*-- Author: Yves Schutz (SUBATECH)
22 // --- ROOT system ---
23 //#include "TClonesArray.h"
29 // --- AliRoot header files ---
31 class AliPHOSGeometry ;
32 class AliPHOSFastRecParticle ;
34 class AliPHOSvFast : public AliPHOS {
39 AliPHOSvFast(const char *name, const char *title="") ;
40 AliPHOSvFast(AliPHOSvFast & fast) : AliPHOS(fast) {
43 virtual ~AliPHOSvFast(void) ;
45 virtual void Copy(TObject &fast) const;
46 void AddRecParticle(const AliPHOSFastRecParticle & rp) ; // adds primary particle to the RecParticles list
47 virtual void BuildGeometry(void) ; // creates the geometry for the ROOT display
48 virtual void CreateGeometry(void) ; // creates the geometry for GEANT
49 Float_t GetBigBox(Int_t index) const;
50 virtual void Init(void) ; // does nothing
51 virtual Int_t IsVersion(void) const {
52 // Gives the version number
56 void MakeBranch(Option_t* opt);
57 Double_t MakeEnergy(Double_t energy) ; // makes the detected energy
58 TVector3 MakePosition(Double_t energy, TVector3 pos, Double_t th, Double_t ph) ;
59 // makes the detected position
60 void MakeRecParticle(Int_t modid, TVector3 pos, AliPHOSFastRecParticle & rp) ; // makes a reconstructes particle from primary
61 Int_t MakeType(AliPHOSFastRecParticle & rp) ; // gets the detected type of particle
62 // gets TClonesArray of reconstructed particles
63 TClonesArray * FastRecParticles() const { return fFastRecParticles ; }
64 virtual void ResetPoints() ;
65 void ResetFastRecParticles() ;
66 void SetBigBox(Int_t index, Float_t value) ;
67 Double_t SigmaE(Double_t energy) ; // calulates the energy resolution at a given Energy
68 Double_t SigmaP(Double_t energy, Double_t inc) ; // calulates the position resolution at a given Energy at a given incidence
69 virtual void StepManager(void) ; // does the tracking through PHOS and a preliminary digitalization
70 virtual const TString Version(void)const {
72 return TString("vFast") ;
75 AliPHOSvFast & operator = (const AliPHOSvFast & ) {
76 Fatal("operator =", "not implemented") ; return *this ;
81 Float_t fBigBoxX ; // main box containing all PHOS (EMC+PPSD)
82 Float_t fBigBoxY ; // main box containing all PHOS (EMC+PPSD)
83 Float_t fBigBoxZ ; // main box containing all PHOS (EMC+PPSD)
84 TClonesArray * fFastRecParticles ; // list of particles modified by the response function
85 Int_t fNRecParticles ; // number of detected particles
86 TRandom fRan ; // random number generator
87 Double_t fResPara1 ; // parameter for the energy resolution dependence
88 Double_t fResPara2 ; // parameter for the energy resolution dependence
89 Double_t fResPara3 ; // parameter for the energy resolution dependence
90 Double_t fPosParaA0 ; // parameter for the position resolution
91 Double_t fPosParaA1 ; // parameter for the position resolution
92 Double_t fPosParaB0 ; // parameter for the position resolution
93 Double_t fPosParaB1 ; // parameter for the position resolution
94 Double_t fPosParaB2 ; // parameter for the position resolution
96 ClassDef(AliPHOSvFast,1) // Implementation of the PHOS manager class for fast simulations
100 #endif // AliPHOSVFAST_H