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dfff4b29 | 1 | #ifndef ALICALOPHOTON_H |
2 | #define ALICALOPHOTON_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
898da7b3 | 5 | /* $Id$ */ |
dfff4b29 | 6 | |
7 | //_________________________________________________________________________ | |
8 | // Class to fill two-photon invariant mass hisograms | |
9 | // to be used to extract pi0 raw yield. | |
10 | // | |
11 | //-- Author: Dmitri Peressounko (RRC "KI") | |
12 | // This class contains all (minimal) necessary information about photon to | |
13 | // calculate invarint mass distr for pi0 | |
14 | // and for tagging and isolation analysis | |
15 | ||
16 | ||
17 | #include "TLorentzVector.h" | |
18 | ||
19 | class AliCaloPhoton :public TLorentzVector{ | |
20 | ||
21 | public: | |
22 | ||
23 | AliCaloPhoton() ; | |
24 | AliCaloPhoton(Double_t px,Double_t py,Double_t pz,Double_t E) ; | |
25 | ~AliCaloPhoton(){} | |
26 | ||
27 | const TLorentzVector * GetMomV2()const{return &fMomV2;} | |
28 | Double_t EMCx(void)const {return fZ;} | |
29 | Double_t EMCy(void)const {return fZ;} | |
30 | Double_t EMCz(void)const {return fZ;} | |
31 | Int_t Module(void)const{return fModule;} | |
32 | Int_t DistToBad()const {return fBadDist ;} | |
33 | Int_t GetNCells()const { return fNCells ;} | |
34 | ||
35 | Bool_t IsDispOK(void)const {return fDisp;} | |
36 | Bool_t IsTOFOK(void)const {return fTof;} | |
37 | Bool_t IsCPVOK(void)const {return fCpv;} | |
38 | Bool_t IsIsolated(void)const{return fIsIsolated ;} | |
39 | Bool_t IsTagged(void) const{return fIsTagged ;} //check if this photon is tagged | |
40 | Bool_t IsTagged(Int_t i,Int_t k) const{return fIsTagged_reg[i][k] ;} //check if this photon is tagged | |
41 | Bool_t IsPIDOK(const Int_t ipid) const ; | |
42 | Bool_t IsPhoton()const {return fIsPhoton ;} //check if this particle is indeed photon (this bit is set with MC stack info | |
43 | Int_t IsConvertedPartner(){ if(fConvertedPartner == 1) return 1; else return 0; } | |
44 | //ConvertedPair bit is set for events when photon's FirstMother is not e+/e- but pi0, but after pi0 decayed | |
45 | //there is conversion of one or both of the photons and results of their conversion are registered by PHOS. | |
46 | //This process is marked as tagged photons but actually the energy of photons is changed and pi0 can't be | |
47 | //correctly found. | |
48 | Int_t IsConverted(){ if(fConverted == 1) return 1; else return 0; } | |
49 | //Converted bit is set if this photon originate from e+/e- conversion on medium | |
50 | Int_t IsPi0Decay(){ if(fPi0Decayflag == 1) return 1; else return 0; } | |
51 | //Pi0Decayflag is set if this photon originate from pi0 decay | |
52 | void Pi0Decay(Int_t flag){ fPi0Decayflag=flag; } | |
53 | void Pi0Id(Int_t id){ fPi0Id=id; } | |
54 | //Id of pi0 from which this photon is decayed (to check if 2 photons originate from the same pi0 or not) | |
55 | ||
56 | ||
57 | void SetMomV2(TLorentzVector * p){fMomV2=(*p);} | |
58 | void SetNCells(Int_t n){fNCells=n;} | |
59 | void SetConverted(Int_t flag){ fConverted=flag; } | |
60 | Int_t ComparePi0Ids( AliCaloPhoton *phot) { if(AliCaloPhoton::fPi0Id!=0 && (*phot).fPi0Id !=0 && AliCaloPhoton::fPi0Id == (*phot).fPi0Id) return 1; else return 0; } | |
61 | void SetConvertedPartner(Int_t flag){ fConvertedPartner=flag; } | |
62 | void SetPhoton(Int_t flag){ fIsPhoton=flag; } | |
63 | void SetDispBit(Bool_t chi2){fDisp = chi2 ;} | |
64 | void SetTOFBit(Bool_t tof){fTof = tof ;} | |
65 | void SetCPVBit(Bool_t cpv){fCpv = cpv; } | |
66 | void SetPCAPID(Bool_t pca){fPCA = pca;} | |
67 | void SetTrig(Bool_t trig){fTrig=trig;} | |
68 | void SetEMCx(Double_t x){fX = x ;} | |
69 | void SetEMCy(Double_t y){fY = y ;} | |
70 | void SetEMCz(Double_t z){fZ = z ;} | |
71 | void SetModule(Int_t mod){fModule = mod ;} | |
72 | void SetDistToBad(Int_t dist){fBadDist=dist;} | |
73 | void SetTagged(Bool_t bit){fIsTagged=bit;} | |
74 | void SetTagged(Bool_t bit,Int_t i,Int_t k){fIsTagged_reg[i][k]=bit;} | |
75 | void SetIsolated(Bool_t bit){fIsIsolated=bit;} | |
76 | void SetPartnerPt(Double_t pt){fPartnerPt=pt;} | |
77 | void SetPrimary(Int_t label){fPrimary=label;} | |
78 | ||
79 | Int_t GetPrimary(){return fPrimary;} | |
80 | Double_t GetPartnerPt(){return fPartnerPt;} | |
81 | private: | |
82 | TLorentzVector fMomV2 ; //Alternative momentum | |
83 | Bool_t fDisp ; //Dispersion bit | |
84 | Bool_t fTof ; //TOF bit | |
85 | Bool_t fCpv ; //Charged bit | |
86 | Bool_t fPCA ; //Principal Component Analysis bit | |
87 | Bool_t fTrig ; //If this photon fired trigger | |
88 | Bool_t fIsTagged; //If it is tagged | |
89 | Bool_t fIsTagged_reg[10][20]; //If it is tagged | |
90 | Bool_t fIsIsolated ; //it is isolated | |
91 | Bool_t fIsPhoton; //If it is really photon or not | |
92 | Double_t fX ; //Cluster coordinates in ALICE ref system | |
93 | Double_t fY ; //Cluster coordinates in ALICE ref system | |
94 | Double_t fZ ; //Cluster coordinates in ALICE ref system | |
95 | Int_t fModule ; //Module number | |
96 | Int_t fBadDist ; //Distance to bad module in module units | |
97 | Int_t fNCells ; //Number of cells in cluster | |
98 | Int_t fPi0Decayflag; //if this photon is from pi0 decay (from simulation) | |
99 | Int_t fPi0Id; | |
100 | Int_t fConverted; //If this photon originated from convertion on material (i.e. its primary is electron) | |
101 | Int_t fConvertedPartner; | |
102 | Double_t fPartnerPt; | |
103 | Int_t fPrimary; //Primary label | |
104 | ||
105 | ClassDef(AliCaloPhoton,1) | |
106 | ||
107 | }; | |
108 | ||
109 | #endif // #ifdef ALICALOPHOTON_H | |
110 | ||
111 |