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70da6c5a | 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 | // Class for electrons from beauty study | |
17 | // Counting electrons from beauty | |
18 | // by DCA cuts, background subtraction | |
19 | // | |
20 | // Authors: | |
faee3b18 | 21 | // Hongyan Yang <hongyan@physi.uni-heidelberg.de> |
22 | // Carlo Bombonati <Carlo.Bombonati@cern.ch> | |
70da6c5a | 23 | // |
24 | ||
25 | #ifndef ALIHFEDISPLACEDELECTRONS_H | |
26 | #define ALIHFEDISPLACEDELECTRONS_H | |
27 | ||
28 | #ifndef ROOT_TObject | |
29 | #include <TObject.h> | |
30 | #endif | |
31 | ||
32 | #ifndef ROOT_TPDGCode | |
33 | #include <TPDGCode.h> | |
34 | #endif | |
35 | ||
36 | class TChain; | |
37 | class TTree; | |
38 | class TFile; | |
39 | ||
40 | class TPDGCode; | |
41 | ||
42 | class TString; | |
43 | class TList; | |
44 | ||
45 | class AliLog; | |
46 | ||
47 | class THnSparse; | |
48 | ||
49 | class TObjArray; | |
50 | class AliStack; | |
51 | class AliMCEvent; | |
52 | class AliESDEvent; | |
faee3b18 | 53 | class AliVEvent; |
70da6c5a | 54 | |
55 | class AliESDtrack; | |
56 | class AliESDVertex; | |
57 | ||
58 | class AliHFEdisplacedElectrons : public TObject{ | |
59 | ||
60 | public: | |
61 | ||
62 | enum{ | |
63 | kPDGelectron = kElectron, | |
64 | kPDGgamma = kGamma, | |
65 | kPDGpi0 = kPi0, | |
66 | kPDGpion = kPiPlus, | |
67 | kPDGeta = 221, | |
68 | kPDGcharm = kCharm, | |
69 | kPDGbeauty = kBottom | |
70 | }; // PDG codes to be used | |
71 | ||
91c7e1ec | 72 | AliHFEdisplacedElectrons(); // default constructor |
70da6c5a | 73 | AliHFEdisplacedElectrons(const AliHFEdisplacedElectrons &p); // copy constructor |
91c7e1ec | 74 | AliHFEdisplacedElectrons &operator=(const AliHFEdisplacedElectrons &ref); // assignment operator |
70da6c5a | 75 | |
76 | virtual ~AliHFEdisplacedElectrons(); | |
77 | ||
78 | void InitAnalysis(); | |
79 | void CreateOutputs(TList* const displacedList); | |
80 | ||
faee3b18 | 81 | void FillMcOutput(AliESDEvent* fESD, AliMCEvent* fMC, AliMCParticle* mctrack); |
82 | void FillEsdOutput(AliESDEvent* fESDEvent, AliESDtrack *track, AliStack *stack); | |
83 | void FillDataOutput(AliESDEvent* fESDEvent, AliESDtrack *track); | |
70da6c5a | 84 | |
85 | Int_t GetMCpid(AliStack* stack, Int_t label) const; | |
86 | ||
87 | Bool_t HasMCData() const { return TestBit(kHasMCData); }; | |
88 | void SetHasMCData(Bool_t hasMCdata = kTRUE) { SetBit(kHasMCData,hasMCdata); }; | |
faee3b18 | 89 | void SetDebugLevel(Int_t debugLevel){ fDeDebugLevel = debugLevel; }; |
90 | void SetNitsCluster(Int_t nITScls){ fNclustersITS = nITScls;}; | |
91 | void SetMinPrimVtxContrib(Int_t nContrib){fMinNprimVtxContributor = nContrib;}; | |
70da6c5a | 92 | |
93 | void PostAnalysis() const; | |
94 | ||
95 | ||
96 | private: | |
97 | ||
98 | enum{ | |
99 | kHasMCData = BIT(15), // bitset for mc data usage | |
100 | kHasESDData = BIT(16) | |
101 | }; | |
102 | ||
103 | ||
104 | ||
105 | enum{ | |
106 | kElePhotonConv = 0, | |
107 | kEleDirectPhotonConv = 1, | |
108 | kElePi0 = 2, | |
109 | kEleEta = 3, | |
110 | kEleB = 4, | |
111 | kEleC = 5, | |
faee3b18 | 112 | kEleBC = 6, |
113 | kEleMissID = 7, | |
114 | kEleMissIDpion = 8, | |
115 | kPion = 8 | |
70da6c5a | 116 | }; // electron source index |
117 | ||
118 | enum{ | |
faee3b18 | 119 | kMcElectron = 0, |
120 | kEsdElectron = 1, | |
121 | kDataElectron = 2 | |
70da6c5a | 122 | }; // MC or Data |
123 | ||
124 | enum{ | |
faee3b18 | 125 | kNDcaMin = 42, |
70da6c5a | 126 | kNPtIntv = 14, |
127 | kNKineVar = 3 | |
128 | }; // several constant to be used | |
129 | ||
69ac0e6f | 130 | |
131 | Int_t CheckCharm(AliStack *const stack, Int_t eleLabel); | |
132 | Bool_t IsB(Int_t pdg); | |
133 | Bool_t IsC(Int_t pdg); | |
faee3b18 | 134 | |
70da6c5a | 135 | Int_t ElectronFromSource(AliStack *stack, Int_t eleLabel) const; |
136 | Int_t ElePhotonDirect(AliStack *stack, Int_t label) const; | |
137 | Int_t ElectronFromCharm(AliStack *stack, Int_t eleLabel) const; | |
138 | Int_t CharmFromBeauty(AliStack *stack, Int_t charmLabel) const; | |
139 | ||
140 | Int_t GetMotherLabel(AliStack *stack, Int_t label) const; | |
141 | Float_t GetRapidity(TParticle *part) const; | |
142 | Float_t GetTrackRapidity(AliESDtrack *track) const; | |
143 | ||
144 | static const Float_t fgkDcaMinIntv[kNDcaMin]; // DCA cut min limit | |
145 | static const Float_t fgkDcaMinPtIntv[kNPtIntv-1]; // DCA cut min limit in different pT bins | |
146 | static const Float_t fgkPtIntv[kNPtIntv]; // all pt bins | |
147 | ||
148 | static const Char_t *fgkKineVar[kNKineVar]; // particle names | |
149 | static const Char_t *fgkKineVarTitle[kNKineVar]; // particle names | |
faee3b18 | 150 | |
151 | UInt_t fDeDebugLevel; // debug level | |
152 | Int_t fNclustersITS; // ITS clusters | |
153 | Int_t fMinNprimVtxContributor; // minimum number of contributors to the primary vtx | |
70da6c5a | 154 | |
faee3b18 | 155 | THnSparseF *fTHnSparseDcaMcEleInfo; //! container for MC pion part |
156 | THnSparseF *fTHnSparseDcaEsdEleInfo; //! container for MC electron part | |
91c7e1ec | 157 | THnSparseF *fTHnSparseDcaDataEleInfo; //! container for Data electron part |
70da6c5a | 158 | |
faee3b18 | 159 | TList *fDeOutputList; //! output container |
70da6c5a | 160 | ClassDef(AliHFEdisplacedElectrons, 0); |
161 | }; | |
162 | ||
163 | #endif |