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(const AliPHOSvFast & fast) {
36 // cpy ctor: no implementation yet
37 // requested by the Coding Convention
40 virtual ~AliPHOSvFast(void) ;
42 virtual void AddHit( Int_t shunt, Int_t primary, Int_t track, Int_t id, Float_t *hits ) {
43 // useless since there are no hits
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, const char *file=0) ;
57 Double_t MakeEnergy(const Double_t energy) ; // makes the detected energy
58 TVector3 MakePosition(const Double_t energy, const TVector3 pos, const Double_t th, const Double_t ph) ;
59 // makes the detected position
60 void MakeRecParticle(const Int_t modid, const 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 TString Version(void){
72 return TString("vFast") ;
75 AliPHOSvFast & operator = (const AliPHOSvFast & ) {
76 // assignement operator requested by coding convention but not needed
83 Float_t fBigBoxX ; // main box containing all PHOS (EMC+PPSD)
84 Float_t fBigBoxY ; // main box containing all PHOS (EMC+PPSD)
85 Float_t fBigBoxZ ; // main box containing all PHOS (EMC+PPSD)
86 TClonesArray * fFastRecParticles ; // list of particles modified by the response function
87 Int_t fNRecParticles ; // number of detected particles
88 TRandom fRan ; // random number generator
89 Double_t fResPara1 ; // parameter for the energy resolution dependence
90 Double_t fResPara2 ; // parameter for the energy resolution dependence
91 Double_t fResPara3 ; // parameter for the energy resolution dependence
92 Double_t fPosParaA0 ; // parameter for the position resolution
93 Double_t fPosParaA1 ; // parameter for the position resolution
94 Double_t fPosParaB0 ; // parameter for the position resolution
95 Double_t fPosParaB1 ; // parameter for the position resolution
96 Double_t fPosParaB2 ; // parameter for the position resolution
98 ClassDef(AliPHOSvFast,1) // Implementation of the PHOS manager class for fast simulations
102 #endif // AliPHOSVFAST_H