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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | // | |
16 | // QA class of primary vertex study for Heavy Flavor electrons | |
17 | // this has functionality to reject electrons from primary vertex | |
18 | // and check primary vertex characteristics | |
19 | // | |
20 | ||
21 | #ifndef ALIHFEPRIVTX_H | |
22 | #define ALIHFEPRIVTX_H | |
23 | ||
24 | #ifndef ROOT_TObject | |
25 | //#include <TObject.h> | |
26 | #endif | |
27 | ||
28 | class TH1F; | |
29 | class TH1I; | |
30 | class TH2F; | |
31 | class TString; | |
32 | class AliESDEvent; | |
33 | class AliESDtrack; | |
34 | class AliMCEvent; | |
35 | class AliKFParticle; | |
36 | ||
37 | //________________________________________________________________ | |
38 | class AliHFEpriVtx : public TObject { | |
39 | ||
40 | public: | |
41 | AliHFEpriVtx(); | |
42 | AliHFEpriVtx(const AliHFEpriVtx &p); // copy constructor | |
43 | AliHFEpriVtx &operator=(const AliHFEpriVtx &); // assignment operator | |
44 | virtual ~AliHFEpriVtx(); | |
45 | ||
46 | void CreateHistograms(TString hnopt=""); // create histograms | |
47 | void Init(); | |
48 | void SetEvent(AliESDEvent * const ESD){fESD1=ESD;}; // set ESD pointer | |
49 | void SetMCEvent(AliMCEvent * const mcEvent){fMCEvent=mcEvent;} // set stack pointer | |
50 | void CountNtracks(Int_t sourcePart, Int_t recpid, Double_t recprob); // count number of tracks passed certain cut | |
51 | void FillNtracks(); // fill counted number of tracks | |
52 | void CountPriVxtElecContributor(AliESDtrack *ESDelectron, Int_t sourcePart, Int_t recpid, Double_t recprob); | |
53 | void FillNprimVtxContributor() const; | |
54 | void RecalcPrimvtx(Int_t nkftrk, const Int_t * const, const AliKFParticle * const); //recalculate primary vertex after removing given tracks | |
55 | void RecalcPrimvtx(const AliESDtrack * const ESDelectron); //recalculate primary vertex after removing given track | |
56 | void GetRecalcPrimvtx(Double_t privtx[3]) const { | |
57 | privtx[0]=fPVxRe; privtx[1]=fPVyRe; privtx[2]=fPVzRe; | |
58 | } | |
59 | void GetNPriVxtContributor(); | |
60 | Double_t GetDistanceFromRecalVertexXY(const AliESDtrack * const ESDelectron); | |
61 | Int_t GetNsectrk2prim() const {return fNsectrk2prim;}; | |
62 | Int_t GetMCPID(AliESDtrack const *track); // return mc pid | |
63 | ||
64 | ||
65 | private: | |
66 | ||
67 | AliESDEvent* fESD1; // ESD event | |
68 | AliMCEvent* fMCEvent; // MC Event | |
69 | ||
70 | TString fkSourceLabel[10]; // storing source label | |
71 | ||
72 | enum kSources {kAll, kDirectCharm, kDirectBeauty, kBeautyCharm, kGamma, kPi0, kElse, kBeautyGamma, kBeautyPi0, kBeautyElse}; | |
73 | ||
74 | struct AliHists{ | |
75 | TH1F *fNtracks; // histogram to fill number of counted tracks for different sources | |
76 | TH1F *fNprimVtxContributor; // histogram to fill number of tracks contributing primary vertex | |
77 | TH1F *fPtElec; // histogram to fill pt of electron tracks | |
78 | TH1F *fPtElecContributor; // histogram to fill pt of electron tracks contributing primary vertex | |
79 | Int_t fNtrackCount; // number of counted track | |
80 | Int_t fNprimVtxContributorCount; // number of tracks contributing primary vertex | |
81 | ||
82 | AliHists() | |
83 | : fNtracks() | |
84 | , fNprimVtxContributor() | |
85 | , fPtElec() | |
86 | , fPtElecContributor() | |
87 | , fNtrackCount(0) | |
88 | , fNprimVtxContributorCount(0) | |
89 | { | |
90 | // default constructor | |
91 | } | |
92 | ||
93 | AliHists(const AliHists & p) | |
94 | : fNtracks(p.fNtracks) | |
95 | , fNprimVtxContributor(p.fNprimVtxContributor) | |
96 | , fPtElec(p.fPtElec) | |
97 | , fPtElecContributor(p.fPtElecContributor) | |
98 | , fNtrackCount(p.fNtrackCount) | |
99 | , fNprimVtxContributorCount(p.fNprimVtxContributorCount) | |
100 | { | |
101 | // copy constructor | |
102 | } | |
103 | AliHists &operator=(const AliHists &) | |
104 | { | |
105 | // assignment operator, not yet implemented | |
106 | return *this; | |
107 | } | |
108 | }; | |
109 | AliHists fPrimVtx[10]; // define structure of histograms | |
110 | ||
111 | Int_t fNtrackswoPid; // number of track counted | |
112 | TH1F *fHNtrackswoPid; // histogram to fill number of track counted | |
113 | TH1I *fNESDprimVtxContributor; // histogram to fill number of primary vertex contributor for given event | |
114 | TH1I *fNESDprimVtxIndices; // histogram to fill number of primary vertex indices for given event | |
115 | TH2F *fDiffDCAvsPt; // histogram to fill DCA difference as a function of pT | |
116 | TH2F *fDiffDCAvsNt; // histogram to fill DCA difference as a function of pT | |
117 | ||
118 | Int_t fNsectrk2prim; // # of secvtx tracks contributing to primvtx calculation | |
119 | Double_t fPVxRe; // recalculated primary vertex x | |
120 | Double_t fPVyRe; // recalculated primary vertex y | |
121 | Double_t fPVzRe; // recalculated primary vertex z | |
122 | ||
123 | ClassDef(AliHFEpriVtx,0); | |
124 | }; | |
125 | ||
126 | #endif |