Minor fix for software triggers.
[u/mrichter/AliRoot.git] / PWG3 / base / AliPtMothFromPtDaugh.h
CommitLineData
c4df3c2a 1#ifndef ALIPTMOTHFROMPTDAUGH_H
2#define ALIPTMOTHFROMPTDAUGH_H
3/* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5////////////////////////////////////////////////////////////////////////////
6// Class to perform pt-spectra (and ptMin-spectra) extraction of mothers //
7// particles starting from measured pt-spectra of daughters particles //
8// that come from inclusive decays. //
9// //
10// Contact: Giuseppe.Bruno@ba.infn.it & Fiorella.Fionda@ba.infn.it //
11////////////////////////////////////////////////////////////////////////////
12
13class TH1F;
14class TNtuple;
15class AliStack;
16class TParticle;
17class TArrayI;
18#include <TNamed.h>
19
20//________________________________________________________________
21class AliPtMothFromPtDaugh : public TNamed {
22
23public:
24
25 typedef enum {
26 kUserAnalysis,
27 kBtoJPSI,
28 kBtoEle,
29 kBtoMuon,
30 kBtoD0
31 } Analysis_mode;
32
33 AliPtMothFromPtDaugh();
34 AliPtMothFromPtDaugh(const char* name, const char* title);
35 virtual ~AliPtMothFromPtDaugh();
36
37 Bool_t CreateWeights(); // method which create the containers for the corrections for the deconvolution
38 void DeleteWeights(); // reset the containers
39 Bool_t ReadHistoPtDaught(const TH1F *hist); // this is input, i.e. the spectrum of the daughter.
40 //
41 // setters
42 //
43 void SetDefaultAnalysis(Analysis_mode mode){fAnalysisMode = mode; InitDefaultAnalysis();}
44 void SetPdgDaugh(Int_t pdgD); // set the pdg of the daughter particle
45 void SetBeautyMothers(); // all the Beauty particles are considered as "mothers"
46 void SetPdgMothers(Int_t n_mothers,Int_t *pdgM); // define which particles are considered as possible mothers
47
48 // (here you can set the pt binning of the final spectrum, i.e. that of the mothers )
49 void SetBinsPtMoth(Double_t ptmin, Double_t ptmax,Int_t nbins,Double_t alpha=1.0); // binning of histo pt(Mothers)
50 void SetBinsPtMoth(Int_t nbins, Double_t *edgeBins); // " " " "
51 void SetBinsPtMinMoth(Double_t ptmin, Double_t ptmax,Int_t nbins,Double_t alpha=1.0); // histo of pt_min(Mothers)
52 void SetBinsPtMinMoth(Int_t nbins, Double_t *edgeBins); // histo of pt_min(Mothers)
53 //
54 void SetYmothers(Double_t yMin, Double_t yMax){fyMothMin = yMin; // define rapidity range
55 fyMothMax = yMax; SetUseEta(kFALSE);} // of the mothers
56 void SetYdaughter(Double_t yMin, Double_t yMax){fyDaughMin = yMin; // define rapidity range
57 fyDaughMax = yMax; SetUseEta(kFALSE);} // of the daughter
58
59 void SetEtaMothers(Double_t etaMin, Double_t etaMax){fyMothMin = etaMin; // define pseudo-rapidity range of mothers
60 fyMothMax = etaMax; SetUseEta(kTRUE);}
61 void SetEtaDaughter(Double_t etaMin, Double_t etaMax){fyDaughMin = etaMin; // define pseudo-rapidity range of daughter
62 fyDaughMax = etaMax; SetUseEta(kTRUE);}
63 void SetDecayNtupla(TNtuple *DecKine){fDecayKine = DecKine;} // define TNtupla with kinematic informations
64 //getters
65 Double_t* GetBinsSize(const TH1F *hist, Int_t &n) const;
66 Bool_t GetEtaMothers(Double_t &etaMin, Double_t &etaMax) const; // get pseudorapidity edges for mothers if pseudorapidity
67 // is used (return kFALSE if rapidity has been used)
68 Bool_t GetEtaDaughter(Double_t &etaMin, Double_t &etaMax) const; // get pseudorapidity edges for daughters if pseudorapidity
69 // is used (return kFALSE if rapidity has ben used)
70 Bool_t GetYMothers(Double_t &yMin, Double_t &yMax) const; // get rapidity edges for mothers if rapidity is used
71 Bool_t GetYDaughter(Double_t &yMin, Double_t &yMax) const; // get rapidity edges for daughters if rapidity is used
72
73 Int_t GetPdgDaugh() const {return fDaughter;} // return the pdg of the daughter particle
74 Int_t* GetPdgMothers(Int_t &n_mothers) const; // return the pdg codes of the mothers particles
75
76 // main method to evaluate mothers spectra (for pt and ptMin)
77 Bool_t EvaluatePtMoth();
78 void WritePtMothHistoToFile(char *fileOutName="Mothers.root");
79
80 // return values of correction factors for pt-mothers ditribution
81 Double_t GetW(Int_t i,Int_t j) const;
82 Double_t GetF(Int_t i) const;
83
84 // return values of correction factors for ptMin-mothers ditribution
85 Double_t GetWmin(Int_t i,Int_t j) const;
86 Double_t GetFmin(Int_t i) const;
87
88 // return errors on correction factors for pt-mothers distribution
89 Double_t GetStatErrW(Int_t i,Int_t j) const;
90 Double_t GetStatErrF(Int_t i) const;
91
92 // return errors on correction factors for ptMin-mothers distribution
93 Double_t GetStatErrWmin(Int_t i,Int_t j) const;
94 Double_t GetStatErrFmin(Int_t i) const;
95
96 // return pointers to pt and ptMin mothers histograms
97 TH1F* GetHistoPtMother() const {return fHistoPtMothers;}
98 TH1F* GetHistoPtMinMother() const {return fHistoPtMinMothers;}
99
100 //method to read kinematic
101 Int_t GiveBinIndex(Double_t Ptpart,const TH1F *ptHist) const;
102 Bool_t Rapidity(const TParticle *particle, Double_t &y);
103 Bool_t IsMothers(Int_t pdgCode);
104 Bool_t IsSelectedDaugh(const TParticle *part, Int_t &labelDaugh, AliStack * const stack);
105 Bool_t CutDaugh(Double_t yD,Double_t ptD);
106
107private:
108 void InitDefaultAnalysis(); // set the default analysis for one of the specific Analysis_mode, apart kUserAnalysis
109 // methods to evaluate correction factors
110 Bool_t EvaluateWij(); //
111 Bool_t EvaluateFi(); //
112
113 void SetUseEta(Bool_t useEta){fUseEta=useEta;} // decide whether to use rapidity or pseudo-rapidity cut
114 Double_t* SetBinsSize(Double_t ptmin, Double_t ptmax,Int_t nbins,Double_t alpha);
115 // method to evaluate raw-mothers spectra (for pt and ptMin)
116 Bool_t EvaluatePtMothRaw(TH1F *histoPt, TH1F *histoPtMin);
117 //method to evaluate statistical errors on extracted distribution
118 Bool_t EvaluateErrPt(Double_t *erStat);
119 Bool_t EvaluateErrPtMin(Double_t *erStat);
120 void SetPdgMothersPrivate(Int_t n_mothers,Int_t *pdgM); // define which particles are considered as possible mothers
121
122 TNtuple* fDecayKine; //Ntupla to store kinematic information of Decay
123 Double_t** fWij; //pointer to store correction factors
124 Double_t* fFi; //" " "
125 Double_t** fWijMin; //" " "
126 Double_t* fFiMin; //" " "
127 TH1F* fHistoPtDaughter; //pointers to pt-histogram of Daughther
128 TH1F* fHistoPtMothers; //pointers to ptMin-histogram of mothers
129 TH1F* fHistoPtMinMothers; //pointers for pt_min-histogram of Mothers
130 TArrayI* fMothers; //Array with pdg codes of mothers
131 Int_t fDaughter; //pdg code of daughter
132 Double_t fyMothMax; //max rapidity (or pseudorapidity) of mothers
133 Double_t fyMothMin; //min " " "
134 Double_t fyDaughMax; //max " " of daughters
135 Double_t fyDaughMin; //min " " "
136 Bool_t fUseEta; //kTRUE if pseudorapidity range is used
137 Analysis_mode fAnalysisMode; //analysis mode
138
139 AliPtMothFromPtDaugh(const AliPtMothFromPtDaugh &c);
140 AliPtMothFromPtDaugh &operator=(const AliPtMothFromPtDaugh &c);
141
142 ClassDef(AliPtMothFromPtDaugh,1); // mother pt spectrum from daughter pt spectrum
143};
144
145
146#endif