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"
21 // --- AliRoot header files ---
23 #include "AliPHOSGeometry.h"
24 #include "AliPHOSPID.h"
25 class AliPHOSFastRecParticle ;
27 class AliPHOSvFast : public AliPHOS {
32 AliPHOSvFast(const char *name, const char *title="") ;
33 AliPHOSvFast(const AliPHOSvFast & fast) {
34 // cpy ctor: no implementation yet
35 // requested by the Coding Convention
38 virtual ~AliPHOSvFast(void) ;
40 void AddRecParticle(const AliPHOSFastRecParticle & rp) ; // adds primary particle to the RecParticles list
41 virtual void BuildGeometry(void) ; // creates the geometry for the ROOT display
42 virtual void CreateGeometry(void) ; // creates the geometry for GEANT
43 Float_t GetBigBox(Int_t index) ;
44 virtual void Init(void) ; // does nothing
45 Int_t IsVersion(void) const { return -1 ; }
46 void MakeBranch(Option_t* opt, const char *file=0) ;
47 Double_t MakeEnergy(const Double_t energy) ; // makes the detected energy
48 TVector3 MakePosition(const Double_t energy, const TVector3 pos, const Double_t th, const Double_t ph) ;
49 // makes the detected position
50 void MakeRecParticle(const Int_t modid, const TVector3 pos, AliPHOSFastRecParticle & rp) ; // makes a reconstructes particle from primary
51 Int_t MakeType(AliPHOSFastRecParticle & rp) ; // gets the detected type of particle
52 // gets TClonesArray of reconstructed particles
53 TClonesArray * FastRecParticles() { return fFastRecParticles ; }
54 virtual void ResetPoints() ;
55 void ResetFastRecParticles() ;
56 void SetBigBox(Int_t index, Float_t value) ;
57 Double_t SigmaE(Double_t energy) ; // calulates the energy resolution at a given Energy
58 Double_t SigmaP(Double_t energy, Int_t inc) ; // calulates the position resolution at a given Energy at a given incidence
59 virtual void StepManager(void) ; // does the tracking through PHOS and a preliminary digitalization
61 AliPHOSvFast & operator = (const AliPHOSvFast & rvalue) {
62 // assignement operator requested by coding convention
70 Float_t fBigBoxX ; // main box containing all PHOS (EMC+PPSD)
71 Float_t fBigBoxY ; // main box containing all PHOS (EMC+PPSD)
72 Float_t fBigBoxZ ; // main box containing all PHOS (EMC+PPSD)
73 TClonesArray * fFastRecParticles ; // list of particles modified by the response function
74 Int_t fNRecParticles ; // number of detected particles
75 TRandom fRan ; // random number generator
76 Double_t fResPara1 ; // parameter for the energy resolution dependence
77 Double_t fResPara2 ; // parameter for the energy resolution dependence
78 Double_t fResPara3 ; // parameter for the energy resolution dependence
79 Double_t fPosParaA0 ; // parameter for the position resolution
80 Double_t fPosParaA1 ; // parameter for the position resolution
81 Double_t fPosParaB0 ; // parameter for the position resolution
82 Double_t fPosParaB1 ; // parameter for the position resolution
83 Double_t fPosParaB2 ; // parameter for the position resolution
85 ClassDef(AliPHOSvFast,1) // Implementation of the PHOS manager class for fast simulations
89 #endif // AliPHOSVFAST_H