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7cd4e982 | 1 | #ifndef ALIMCANALYSISUTILS_H |
2 | #define ALIMCANALYSISUTILS_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | /* $Id: $ */ | |
6 | ||
7 | //_________________________________________________________________________ | |
8 | // Class for analysis utils for MC data | |
9 | // stored in stack or event header. | |
10 | // Contains: | |
11 | // - method to check the origin of a given track/cluster | |
12 | // - method to obtain the generated jets | |
13 | // | |
14 | //*-- Author: Gustavo Conesa (INFN-LNF) | |
15 | ||
16 | // --- ROOT system --- | |
c3ab95b2 | 17 | #include <TObject.h> |
18 | #include <TString.h> | |
7cd4e982 | 19 | class TList ; |
c4a7d28a | 20 | class TVector3; |
7cd4e982 | 21 | |
22 | //--- AliRoot system --- | |
23 | class AliCaloTrackReader ; | |
24 | class AliStack ; | |
25 | ||
26 | class AliMCAnalysisUtils : public TObject { | |
27 | ||
78219bac | 28 | public: |
29 | AliMCAnalysisUtils() ; // ctor | |
30 | virtual ~AliMCAnalysisUtils() ;//virtual dtor | |
31 | private: | |
32 | AliMCAnalysisUtils & operator = (const AliMCAnalysisUtils & ) ;//cpy assignment | |
33 | AliMCAnalysisUtils(const AliMCAnalysisUtils & mcu) ; // cpy ctor | |
3c75ddf7 | 34 | |
78219bac | 35 | public: |
3c75ddf7 | 36 | |
840124fe | 37 | //-------------------------------------- |
38 | //Enum with tag for origin of particles | |
39 | //-------------------------------------- | |
3c75ddf7 | 40 | |
41 | //"Mostly" photon parent types on line 1, | |
42 | // | |
43 | //then "mostly" electron parent types on line 2, (e.g. electrons can | |
44 | //come from pi0 decay) | |
45 | //then charged particles on line 3, | |
46 | //followed by other and unknown on line 4 | |
47 | enum mcTypes { kMCPhoton, kMCPrompt, kMCFragmentation, kMCISR, kMCPi0Decay, kMCEtaDecay, kMCOtherDecay, kMCConversion, | |
48 | kMCElectron, kMCEFromCFromB, kMCEFromC, kMCEFromB, kMCZDecay, kMCWDecay, | |
49 | kMCMuon, kMCPion, kMCPi0, kMCKaon, kMCEta, kMCProton, kMCAntiProton, kMCNeutron, kMCAntiNeutron, | |
50 | kMCOther, kMCUnknown, kMCBadLabel } ; | |
51 | ||
840124fe | 52 | //-------------------------------------- |
3c75ddf7 | 53 | // Methods to check origin of clusters |
840124fe | 54 | //-------------------------------------- |
3c75ddf7 | 55 | |
48a0baf4 | 56 | Int_t CheckCommonAncestor(const Int_t index1, const Int_t index2, AliCaloTrackReader* reader, |
3c75ddf7 | 57 | Int_t & ancPDG, Int_t & ancStatus, TLorentzVector & momentum, TVector3 & v) ; |
58 | Int_t CheckOrigin(const Int_t label, AliCaloTrackReader * reader, const Int_t input) ; | |
59 | //Check the label of the most significant particle but do checks on the rest of the contributing labels | |
60 | Int_t CheckOrigin(const Int_t *label, const Int_t nlabels, AliCaloTrackReader * reader, const Int_t input) ; | |
61 | ||
62 | Int_t CheckOriginInStack(const Int_t *labels, const Int_t nlabels, AliStack * stack) ; | |
63 | Int_t CheckOriginInAOD (const Int_t *labels, const Int_t nlabels, TClonesArray* mcparticles) ; | |
64 | ||
65 | void CheckOverlapped2GammaDecay(const Int_t *labels, const Int_t nlabels, const Int_t mesonIndex, AliStack * stack, Int_t & tag); | |
66 | void CheckOverlapped2GammaDecay(const Int_t *labels, const Int_t nlabels, const Int_t mesonIndex, TClonesArray* mcparticles, Int_t & tag); | |
840124fe | 67 | |
68 | //Check or set the bits produced in the above methods | |
3c75ddf7 | 69 | void SetTagBit(Int_t &tag, const UInt_t set) const { |
70 | // Set bit of type set (mcTypes) in tag | |
71 | tag |= (1<<set) ; | |
72 | } | |
73 | ||
74 | Bool_t CheckTagBit(const Int_t tag, const UInt_t test) const { | |
75 | // Check if in tag the bit test (mcTypes) is set. | |
76 | if (tag & (1<<test) ) return kTRUE ; | |
77 | else return kFALSE ; | |
f8006433 | 78 | } |
3c75ddf7 | 79 | |
840124fe | 80 | //-------------------------------------- |
81 | // Other methods | |
82 | //-------------------------------------- | |
3c75ddf7 | 83 | |
840124fe | 84 | // Method to recover MC jets stored in generator |
3c75ddf7 | 85 | TList * GetJets(AliCaloTrackReader * const reader) ; |
86 | ||
87 | void SetDebug(Int_t deb) { fDebug=deb ; } | |
88 | Int_t GetDebug() const { return fDebug ; } | |
89 | ||
90 | void SetMCGenerator(TString mcgen) { fMCGenerator = mcgen ; } | |
91 | TString GetMCGenerator() const { return fMCGenerator ; } | |
840124fe | 92 | |
93 | void Print(const Option_t * opt) const; | |
94 | ||
3c75ddf7 | 95 | private: |
96 | Int_t fCurrentEvent; // Current Event | |
97 | Int_t fDebug; // Debug level | |
98 | TList * fJetsList; // List of jets | |
99 | TString fMCGenerator; // MC geneator used to generate data in simulation | |
100 | ||
101 | ClassDef(AliMCAnalysisUtils,3) | |
7cd4e982 | 102 | |
3c75ddf7 | 103 | } ; |
7cd4e982 | 104 | |
105 | #endif //ALIMCANALYSISUTILS_H | |
106 | ||
107 | ||
108 |