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b2a297fa | 1 | #ifndef ALIDIELECTRON_H |
2 | #define ALIDIELECTRON_H | |
3 | /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | //##################################################### | |
7 | //# # | |
8 | //# Class AliDielectron # | |
9 | //# Main Class for e+e- analysis # | |
10 | //# # | |
11 | //# by WooJin J. Park, GSI / W.J.Park@gsi.de # | |
12 | //# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de # | |
13 | //# Magnus Mager, CERN / Magnus.Mager@cern.ch # | |
14 | //# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch # | |
15 | //# # | |
16 | //##################################################### | |
17 | ||
18 | ||
19 | #include <TNamed.h> | |
20 | #include <TObjArray.h> | |
21 | ||
22 | #include <AliAnalysisFilter.h> | |
23 | #include <AliKFParticle.h> | |
24 | ||
25 | #include "AliDielectronHistos.h" | |
26 | #include "AliDielectronPair.h" | |
27 | ||
28 | class AliVEvent; | |
29 | class THashList; | |
30 | class AliDielectronCF; | |
572b0139 | 31 | class AliDielectronDebugTree; |
b2a297fa | 32 | |
33 | //________________________________________________________________ | |
34 | class AliDielectron : public TNamed { | |
35 | ||
36 | public: | |
37 | enum ParticleValues { kPx=0, kPy, kPz, kPt, kP, kXv, kYv, kZv, kOneOverPt, | |
38 | kPhi, kTheta, kE, kM, kEta, kY, kCharge, kNParticleValues }; | |
39 | enum PairValues { kChi2NDF=kNParticleValues, kDecayLength, kR, kOpeningAngle, kMerr, kNPairValues }; | |
40 | ||
41 | AliDielectron(); | |
42 | AliDielectron(const char* name, const char* title); | |
43 | virtual ~AliDielectron(); | |
44 | ||
45 | void Init(); | |
46 | ||
47 | void Process(AliVEvent *ev1, AliVEvent *ev2=0); | |
48 | ||
b2a297fa | 49 | const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; } |
50 | const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; } | |
51 | const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; } | |
52 | ||
53 | AliAnalysisFilter& GetEventFilter() { return fEventFilter; } | |
54 | AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; } | |
55 | AliAnalysisFilter& GetPairFilter() { return fPairFilter; } | |
56 | ||
57 | void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; } | |
58 | ||
59 | const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;} | |
60 | const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<10)? | |
61 | static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;} | |
62 | ||
63 | TObjArray** GetPairArraysPointer() { return &fPairCandidates; } | |
64 | ||
65 | void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; } | |
66 | const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; } | |
67 | ||
68 | Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; } | |
69 | ||
70 | void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; } | |
71 | AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; } | |
572b0139 | 72 | |
73 | void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; } | |
b2a297fa | 74 | |
75 | static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; } | |
76 | static const char* PairClassName(Int_t i) { return (i>=0&&i<10)?fgkPairClassNames[i]:""; } | |
572b0139 | 77 | |
78 | void SaveDebugTree(); | |
b2a297fa | 79 | |
80 | private: | |
81 | ||
82 | ||
83 | AliAnalysisFilter fEventFilter; // Event cuts | |
84 | AliAnalysisFilter fTrackFilter; // leg cuts | |
85 | AliAnalysisFilter fPairFilter; // pair cuts | |
86 | ||
87 | Int_t fPdgMother; // pdg code of mother tracks | |
88 | ||
89 | AliDielectronHistos *fHistos; // Histogram manager | |
90 | // Streaming and merging should be handled | |
91 | // by the analysis framework | |
92 | ||
93 | TObjArray fTracks[4]; //! Selected track candidates | |
94 | // 0: Event1, positive particles | |
95 | // 1: Event1, negative particles | |
96 | // 2: Event2, positive particles | |
97 | // 3: Event2, negative particles | |
98 | ||
99 | TObjArray *fPairCandidates; //! Pair candidate arrays | |
100 | //TODO: better way to store it? TClonesArray? | |
101 | ||
102 | AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair | |
103 | ||
572b0139 | 104 | AliDielectronDebugTree *fDebugTree; // Debug tree output |
105 | ||
b2a297fa | 106 | void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0); |
107 | void FillPairArrays(Int_t arr1, Int_t arr2); | |
108 | ||
109 | Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;} | |
110 | ||
111 | void InitPairCandidateArrays(); | |
112 | void ClearArrays(); | |
113 | ||
114 | TObjArray* PairArray(Int_t i); | |
115 | ||
116 | static const char* fgkTrackClassNames[4]; //Names for track arrays | |
117 | static const char* fgkPairClassNames[10]; //Names for pair arrays | |
118 | ||
119 | void ProcessMC(); | |
120 | ||
a655b716 | 121 | void FillHistograms(const AliVEvent *ev); |
572b0139 | 122 | void FillDebugTree(); |
a655b716 | 123 | |
b2a297fa | 124 | AliDielectron(const AliDielectron &c); |
125 | AliDielectron &operator=(const AliDielectron &c); | |
126 | ||
572b0139 | 127 | ClassDef(AliDielectron,2); |
b2a297fa | 128 | }; |
129 | ||
130 | inline void AliDielectron::InitPairCandidateArrays() | |
131 | { | |
132 | // | |
133 | // initialise all pair candidate arrays | |
134 | // | |
135 | fPairCandidates->SetOwner(); | |
136 | for (Int_t i=0;i<10;++i){ | |
137 | TObjArray *arr=new TObjArray; | |
138 | fPairCandidates->AddAt(arr,i); | |
139 | arr->SetOwner(); | |
140 | } | |
141 | } | |
142 | ||
143 | inline TObjArray* AliDielectron::PairArray(Int_t i) | |
144 | { | |
145 | // | |
146 | // for internal use only: unchecked return of track array for fast access | |
147 | // | |
148 | return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)); | |
149 | } | |
150 | ||
151 | inline void AliDielectron::ClearArrays() | |
152 | { | |
153 | // | |
154 | // Reset the Arrays | |
155 | // | |
156 | for (Int_t i=0;i<4;++i){ | |
157 | fTracks[i].Clear(); | |
158 | } | |
159 | for (Int_t i=0;i<10;++i){ | |
160 | PairArray(i)->Delete(); | |
161 | } | |
162 | } | |
163 | ||
164 | #endif |