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259c3296 | 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 | **************************************************************************/ | |
50685501 | 15 | // |
16 | // QA class of Heavy Flavor quark and fragmeted/decayed particles | |
17 | // -Check kinematics of Heavy Quarks/hadrons, and decayed leptons | |
18 | // pT, rapidity | |
19 | // decay lepton kinematics w/wo acceptance | |
20 | // heavy hadron decay length, electron pT fraction carried from decay | |
21 | // -Check yield of Heavy Quarks/hadrons | |
22 | // Number of produced heavy quark | |
23 | // Number of produced hadron of given pdg code | |
24 | // | |
259c3296 | 25 | |
dbe3abbe | 26 | #ifndef ALIHFEMCQA_H |
27 | #define ALIHFEMCQA_H | |
259c3296 | 28 | |
29 | #ifndef ROOT_TObject | |
75d81601 | 30 | //#include <TObject.h> |
259c3296 | 31 | #endif |
32 | ||
33 | class TH1F; | |
34 | class TH2F; | |
70da6c5a | 35 | class TList; |
259c3296 | 36 | class TParticle; |
37 | class TString; | |
38 | class AliStack; | |
9bcfd1ab | 39 | class AliGenEventHeader; |
0792aa82 | 40 | class AliAODMCParticle; |
259c3296 | 41 | |
42 | //________________________________________________________________ | |
43 | class AliHFEmcQA: public TObject { | |
44 | ||
70da6c5a | 45 | public: |
46 | enum heavyType {kCharm=4, kBeauty=5, kElectronPDG=11}; | |
47 | enum qType {kQuark, kantiQuark, kHadron, keHadron, kDeHadron, kElectron, kElectron2nd}; | |
48 | enum SourceType {kDirectCharm=1, kDirectBeauty=2, kBeautyCharm=3, kGamma=4, kPi0=5, kElse=6}; | |
49 | enum ProcessType { | |
50 | kPairCreationFromq, kPairCreationFromg, kFlavourExitation, kGluonSplitting, kInitialPartonShower, kLightQuarkShower | |
51 | }; | |
52 | ||
53 | AliHFEmcQA(); | |
54 | AliHFEmcQA(const AliHFEmcQA &p); // copy constructor | |
55 | AliHFEmcQA &operator=(const AliHFEmcQA &); // assignment operator | |
56 | ||
57 | virtual ~AliHFEmcQA(); | |
58 | ||
59 | void MakeHistograms(); | |
60 | TList *GetList() const { return fQAhistos; }; | |
61 | void PostAnalyze() const; | |
62 | void CreateHistograms(const Int_t kquark, Int_t icut, TString hnopt=""); // create histograms for mc qa analysis | |
63 | void SetStack(AliStack* const stack){fStack=stack;} // set stack pointer | |
64 | void SetGenEventHeader(AliGenEventHeader* const mcHeader){fMCHeader=mcHeader;} // set stack pointer | |
65 | void SetMCArray(TClonesArray* const mcarry){fMCArray=mcarry;} // set mcarray pointer | |
66 | void Init(); | |
67 | ||
68 | void GetQuarkKine(TParticle *part, Int_t iTrack, const Int_t kquark); // get heavy quark kinematics distribution | |
69 | void GetHadronKine(TParticle *part, const Int_t kquark); // get heavy hadron kinematics distribution | |
70 | void GetDecayedKine(TParticle *part, const Int_t kquark, const Int_t kdecayed, Int_t icut); // get decay electron kinematics distribution | |
0792aa82 | 71 | void GetDecayedKine(AliAODMCParticle *mcpart, const Int_t kquark, Int_t kdecayed, Int_t icut); // get decay electron kinematics for AOD |
70da6c5a | 72 | void EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop |
9bcfd1ab | 73 | Int_t GetSource(TParticle * const mcpart); // return electron source id |
74 | Int_t GetSource(AliAODMCParticle * const mcpart); // return electron source id for AOD | |
dbe3abbe | 75 | |
70da6c5a | 76 | protected: |
77 | void IdentifyMother(Int_t motherlabel, Int_t &motherpdg, Int_t &grandmotherlabel); // | |
78 | void HardScattering(const Int_t kquark, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from hard scattering | |
79 | void ReportStrangeness(Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // report if the quark production process is unknown | |
80 | Bool_t IsFromInitialShower(Int_t inputmotherlabel, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from initial parton shower | |
81 | Bool_t IsFromFinalParton(Int_t inputmotherlabel, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from final parton shower | |
82 | ||
83 | AliStack* fStack; // stack pointer | |
84 | AliGenEventHeader* fMCHeader; // mcheader pointer | |
85 | TClonesArray *fMCArray; // mc array pointer | |
86 | ||
87 | static const Int_t fgkGluon; // gluon pdg code | |
88 | static const Int_t fgkMaxGener; // ancester level wanted to be checked | |
89 | static const Int_t fgkMaxIter; // number of iteration to find out matching particle | |
90 | static const Int_t fgkqType; // number of particle type to be checked | |
91 | ||
92 | struct AliHists{ | |
93 | TH1F *fPdgCode; // histogram to store particle pdg code | |
94 | TH1F *fPt; // histogram to store pt | |
95 | TH1F *fY; // histogram to store rapidity | |
96 | TH1F *fEta; // histogram to store eta | |
75d81601 | 97 | |
98 | AliHists() | |
99 | : fPdgCode() | |
100 | , fPt() | |
101 | , fY() | |
102 | , fEta() | |
70da6c5a | 103 | { |
75d81601 | 104 | // default constructor |
105 | }; | |
106 | AliHists(const AliHists & p) | |
107 | : fPdgCode(p.fPdgCode) | |
108 | , fPt(p.fPt) | |
109 | , fY(p.fY) | |
110 | , fEta(p.fEta) | |
70da6c5a | 111 | { |
75d81601 | 112 | // copy constructor |
113 | }; | |
114 | AliHists &operator=(const AliHists &) | |
115 | { | |
116 | // assignment operator, not yet implemented | |
117 | return *this; | |
118 | } | |
70da6c5a | 119 | void FillList(TList *l) const; |
120 | }; | |
121 | struct AliHistsComm { | |
122 | TH1F *fNq; // histogram to store number of quark | |
123 | TH1F *fProcessID; // histogram to store process id | |
124 | TH2F *fePtRatio; // fraction of electron pT from D or B hadron | |
125 | TH2F *fDePtRatio; // fraction of D electron pT from B hadron | |
126 | TH2F *feDistance; // distance between electron production point to mother particle | |
127 | TH2F *fDeDistance; // distance between D electron production point to mother particle | |
75d81601 | 128 | |
129 | AliHistsComm() | |
130 | : fNq() | |
131 | , fProcessID() | |
132 | , fePtRatio() | |
133 | , fDePtRatio() | |
134 | , feDistance() | |
135 | , fDeDistance() | |
70da6c5a | 136 | { |
75d81601 | 137 | // default constructor |
138 | }; | |
139 | AliHistsComm(const AliHistsComm & p) | |
140 | : fNq(p.fNq) | |
141 | , fProcessID(p.fProcessID) | |
142 | , fePtRatio(p.fePtRatio) | |
143 | , fDePtRatio(p.fDePtRatio) | |
144 | , feDistance(p.feDistance) | |
145 | , fDeDistance(p.fDeDistance) | |
70da6c5a | 146 | { |
75d81601 | 147 | // copy constructor |
148 | }; | |
149 | AliHistsComm &operator=(const AliHistsComm &) | |
150 | { | |
151 | // assignment operator, not yet implemented | |
152 | return *this; | |
153 | } | |
70da6c5a | 154 | void FillList(TList *l) const; |
155 | }; | |
259c3296 | 156 | |
70da6c5a | 157 | AliHists fHist[2][7][5]; // struct of histograms to store kinematics of given particles |
158 | AliHistsComm fHistComm[2][5]; // struct of additional histograms of given particles | |
259c3296 | 159 | |
70da6c5a | 160 | TList *fQAhistos; // Container for QA histos |
161 | TParticle *fHeavyQuark[50]; // store pointer of heavy flavour quark | |
162 | Int_t fIsHeavy[2]; // count of heavy flavour | |
163 | Int_t fNparents; // number of heavy hadrons to be considered | |
164 | Int_t fParentSelect[2][7]; // heavy hadron species | |
259c3296 | 165 | |
166 | ||
70da6c5a | 167 | ClassDef(AliHFEmcQA,1); |
259c3296 | 168 | }; |
169 | ||
170 | #endif |