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[u/mrichter/AliRoot.git] / MUON / AliMUONTrackLight.h
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1#ifndef ALIMUONTRACKLIGHT_H
2#define ALIMUONTRACKLIGHT_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7// Revision of includes 06/09/2006
8
9/// \ingroup evaluation
10/// \class AliMUONTrackLight
11/// \brief Compact information for the muon generated tracks
12///
13/// Compact information for the muon generated tracks in the MUON arm
14/// useful at the last stage of the analysis chain
15/// provides a link between the reconstructed track and the generated particle
16/// stores kinematical information at gen. and rec. level and
17/// the decay history of the muon, allowing the identification of the
18/// mother process
19///
20/// To be used together with AliMUONPairLight
21///
22/// \author This class was prepared by INFN Cagliari, July 2006
23/// (authors: H.Woehri, A.de Falco)
24
25// ROOT classes
26#include "TLorentzVector.h"
27
28class AliMUONTrack;
29class AliESDMuonTrack;
30class AliStack;
31class TParticle;
32class AliMUONVTrackStore;
33
34class AliMUONTrackLight : public TObject {
35 public:
36 AliMUONTrackLight();
37 AliMUONTrackLight(AliESDMuonTrack* muonTrack);
38 AliMUONTrackLight(const AliMUONTrackLight &muonCopy);
39 virtual ~AliMUONTrackLight();
40
41 /// Set 4-momentum of the generated particle
42 void SetPGen(TLorentzVector pgen) {fPgen = pgen;}
43 /// Return 4-momentum of the generated particle
44 TLorentzVector GetPGen() const {return fPgen;}
45 /// Set reconstructed 4-momentum
46 void SetPRec(TLorentzVector prec) {fPrec = prec;}
47 /// Return reconstructed 4-momentum
48 TLorentzVector GetPRec() const {return fPrec;}
49 /// Set primary vertex position from the ITS
50 void SetVertex(Double_t *xyz) {for (Int_t i=0; i<3; i++) fXYZ[i]=xyz[i];}
51 /// Return primary vertex x position from the ITS
52 Double_t GetX() const { return fXYZ[0]; }
53 /// Return primary vertex y position from the ITS
54 Double_t GetY() const { return fXYZ[1]; }
55 /// Return primary vertex z position from the ITS
56 Double_t GetZ() const { return fXYZ[2]; }
57 /// Return primary vertex position from the ITS
58 Double_t* GetVertex() { return fXYZ; }
59 /// Set chi2 / ndf in the MUON track fit
60 void SetChi2(Double_t chi2) {fChi2=chi2;}
61 /// Return chi2 / ndf in the MUON track fit
62 Double_t GetChi2() const { return fChi2; }
63 /// Set weight assigned to the muon
64 void SetWeight(Double_t w) {fWeight=w;}
65 /// Return weight assigned to the muon
66 Double_t GetWeight() const { return fWeight; }
67
68 /// Set muon charge
69 void SetCharge(Int_t charge) {fCharge = charge;}
70 /// Return muon charge
71 Int_t GetCharge() const {return fCharge;}
72 /// Return hadronised parents and grandparents
73 Int_t GetParentPDGCode(Int_t index = 0) const { return fParentPDGCode[index]; }
74 /// Return line of Pythia output for hadronised parents & grandparents
75 Int_t GetParentPythiaLine(Int_t index = 0) const { return fParentPythiaLine[index]; }
76 /// Return pdg of the string [0], quarks/gluons [1,2], sometimes proton [3]
77 Int_t GetQuarkPDGCode(Int_t index = 0) const { return fQuarkPDGCode[index]; }
78 /// Return line of Pythia output for string [0] and quarks [1,2], sometimes proton [3]
79 Int_t GetQuarkPythiaLine(Int_t index = 0) const { return fQuarkPythiaLine[index]; }
80 /// Return line of Pythia output for string [0] and quarks [1,2], sometimes proton [3]
81 Int_t GetTrackPythiaLine() const {return fTrackPythiaLine;}
82 /// Return pdg code of the rec. track (in general will be a muon)
83 Int_t GetTrackPDGCode() const {return fTrackPDGCode;}
84 /// Set line of kin. stack where rec. track (in general, the muon) is stored
85 void SetTrackPythiaLine(Int_t trackLine) {fTrackPythiaLine = trackLine;}
86 /// Set pdg code of the rec. track (in general will be a muon)
87 void SetTrackPDGCode(Int_t trackPdg) {fTrackPDGCode = trackPdg;}
88 void FillFromESD(AliESDMuonTrack* muonTrack, Double_t zvert=-9999);
89 void FillFromAliMUONTrack(AliMUONTrack *trackReco,Double_t zvert=-9999);
90 /// Return info if is a muon
91 Bool_t IsAMuon() const { return (TMath::Abs(fTrackPDGCode)==13); }
92 Bool_t IsParentPionOrKaon(Int_t idParent = 0);
93 void SetPxPyPz(Double_t px, Double_t py, Double_t pz);
94 /// Set flag for trigger
95 void SetTriggered(Bool_t isTriggered) { fIsTriggered = isTriggered; }
96 /// Return flag for trigger
97 Bool_t IsTriggered() const { return fIsTriggered; }
98 /// Return acually filled no. of *fragmented* parents
99 Int_t GetNParents() const {return fNParents;}
100 void FillMuonHistory(AliStack *stack, TParticle *part);
101 Bool_t IsB0(Int_t intTest) const;//checks if the provided PDG code corresponds to a neutral B meson
102 Bool_t IsMotherAResonance(Int_t index=0) const;
103 /// Return flag for oscillation
104 Bool_t GetOscillation() const {return fOscillation;}
105 virtual void PrintInfo(const Option_t* opt); //"H" muon's decay history
106 //"K" muon kinematics
107 //"A" all variables
108 Int_t GetParentFlavour(Int_t idParent=0) const;
109 Bool_t IsDiquark(Int_t pdg) const;
110protected:
111 static const Int_t fgkNParentsMax = 5; ///< maximum number of parents
112 TLorentzVector fPrec; ///< reconstructed 4-momentum
113 Double_t fXYZ[3]; ///< primary vertex position from the ITS
114 Bool_t fIsTriggered; ///< flag for trigger
115 Int_t fCharge; ///< muon charge
116 Double_t fChi2; ///< chi2 / ndf in the MUON track fit
117 Float_t fCentr; ///< centrality
118 TLorentzVector fPgen; ///< 4-momentum of the generated particle
119 Int_t fTrackPythiaLine; ///< line of kin. stack where rec. track (in general, the muon) is stored
120 Int_t fTrackPDGCode; ///< pdg code of the rec. track (in general will be a muon)
121 Int_t fParentPDGCode[fgkNParentsMax]; ///< hadronised parents and grandparents
122 Int_t fParentPythiaLine[fgkNParentsMax];///< line of Pythia output for hadronised parents & grandparents
123 Int_t fQuarkPDGCode[4]; ///< pdg of the string [0], quarks/gluons [1,2], sometimes proton [3]
124 Int_t fQuarkPythiaLine[4]; ///< line of Pythia output for string [0] and quarks [1,2], sometimes proton [3]
125 Bool_t fOscillation; ///< flag for oscillation
126 Int_t fNParents; ///< acually filled no. of *fragmented* parents
127 Double_t fWeight; ///< weight assigned to the muon
128 /// Set flag for oscillation
129 void SetOscillation(Bool_t oscillation) { fOscillation = oscillation; }
130 /// Set hadronised parents and grandparents
131 void SetParentPDGCode(Int_t index, Int_t pdg) { fParentPDGCode[index] = pdg; }
132 /// Set line of Pythia output for hadronised parents & grandparents
133 void SetParentPythiaLine(Int_t index, Int_t line) { fParentPythiaLine[index] = line; }
134 /// Set pdg of the string [0], quarks/gluons [1,2], sometimes proton [3]
135 void SetQuarkPDGCode(Int_t index, Int_t pdg){ fQuarkPDGCode[index] = pdg; }
136 /// Set line of Pythia output for string [0] and quarks [1,2], sometimes proton [3]
137 void SetQuarkPythiaLine(Int_t index, Int_t line){ fQuarkPythiaLine[index] = line; }
138 void ResetQuarkInfo();
139
140 ClassDef(AliMUONTrackLight,1) /// Muon Track for analysis
141};
142
143#endif