Modifications used for addendum to Dimuon TDR (JP Cussonneau):
[u/mrichter/AliRoot.git] / MUON / AliMUONEventReconstructor.h
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a9e2aefa 1#ifndef ALIMUONEVENTRECONSTRUCTOR_H
2#define ALIMUONEVENTRECONSTRUCTOR_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
8#include <TROOT.h>
9
10class AliMUONHit;
11class AliMUONHitForRec;
12class AliMUONSegment;
13class TClonesArray;
14class TFile;
15class TTree;
c7ba256d 16class AliMUONRecoEvent;
a9e2aefa 17
18// Constants which should be elsewhere ????
9cbdf048 19const Int_t kMaxMuonTrackingChambers = 10;
20const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2;
a9e2aefa 21
22class AliMUONEventReconstructor : public TObject {
23
24 public:
25 AliMUONEventReconstructor(void); // Constructor
26 virtual ~AliMUONEventReconstructor(void); // Destructor
9cbdf048 27 AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor
28 AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator
a9e2aefa 29
30 // Parameters for event reconstruction: public methods
31 // Get and Set, Set to defaults
32 Double_t GetMinBendingMomentum(void) {return fMinBendingMomentum;}
33 void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
d0bfce8d 34 Double_t GetMaxBendingMomentum(void) {return fMaxBendingMomentum;}
35 void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;}
36 Double_t GetMaxChi2(void) {return fMaxChi2;}
37 void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;}
a9e2aefa 38 Double_t GetMaxSigma2Distance(void) {return fMaxSigma2Distance;}
39 void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
40 Double_t GetBendingResolution(void) {return fBendingResolution;}
41 void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
42 Double_t GetNonBendingResolution(void) {return fNonBendingResolution;}
43 void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
44 Double_t GetChamberThicknessInX0(void) {return fChamberThicknessInX0;}
45 void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
46 Double_t GetSimpleBValue(void) {return fSimpleBValue;}
47 void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
48 Double_t GetSimpleBLength(void) {return fSimpleBLength;}
49 void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
50 Double_t GetSimpleBPosition(void) {return fSimpleBPosition;}
51 void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
52 Int_t GetRecGeantHits(void) {return fRecGeantHits;}
53 void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;}
54 Double_t GetEfficiency(void) {return fEfficiency;}
55 void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
56 Int_t GetPrintLevel(void) {return fPrintLevel;}
57 void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;}
58 void SetReconstructionParametersToDefaults(void);
59
60 // Parameters for GEANT background events
61 TFile* GetBkgGeantFile(void) {return fBkgGeantFile;}
62 void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits
63 void NextBkgGeantEvent(void); // next event in background file for GEANT hits
64
65 // Hits for reconstruction
8429a5e4 66 Int_t GetNHitsForRec(void) {return fNHitsForRec;} // Number
67
68 // Reconstructed tracks
69 Int_t GetNRecTracks() {return fNRecTracks;} // Number
70 void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;}
71 TClonesArray* GetRecTracksPtr(void) {return fRecTracksPtr;} // Array
72
73 // Hits on reconstructed tracks
74 Int_t GetNRecTrackHits() {return fNRecTrackHits;} // Number
75 void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;}
76 TClonesArray* GetRecTrackHitsPtr(void) {return fRecTrackHitsPtr;} // Array
a9e2aefa 77
78 // Functions
79 Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum);
80 Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam);
81 void EventReconstruct(void);
04b5ea16 82 void EventDump(void); // dump reconstructed event
c7ba256d 83 void FillEvent(); // fill and write tree of reconstructed events
a9e2aefa 84
9cbdf048 85 protected:
86
a9e2aefa 87 private:
88
89 // Parameters for event reconstruction
90 Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane
d0bfce8d 91 // Parameters for event reconstruction
92 Double_t fMaxBendingMomentum; // maximum value (GeV/c) of momentum in bending plane
93 Double_t fMaxChi2; // maximum Chi2 per degree of Freedom
a9e2aefa 94 Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2)
9cbdf048 95 Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm)
96 Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm)
97 Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
ba5b68db 98 Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane
a9e2aefa 99 Double_t fBendingResolution; // chamber resolution (cm) in bending plane
100 Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane
101 Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths
102 // how to take it from simulation ????
103 Double_t fSimpleBValue; // simple magnetic field: value (kG)
104 Double_t fSimpleBLength; // simple magnetic field: length (cm)
105 Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm)
106 Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1)
107 Double_t fEfficiency; // chamber efficiency (used for GEANT hits only)
108 Int_t fPrintLevel; // print level
109
110 // Parameters for GEANT background events
111 // should be in AliMUON class ????
112 TFile *fBkgGeantFile; // pointer to file
113 TTree *fBkgGeantTK; // pointer to tree TK
114 TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK
115 TTree *fBkgGeantTH; // pointer to tree TH
116 TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH
117 Int_t fBkgGeantEventNumber; // event number
118
119 // Hits for reconstruction (should be in AliMUON ????)
120 TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction
121 Int_t fNHitsForRec; // number of hits for reconstruction
122 // Information per chamber (should be in AliMUONChamber ????)
9cbdf048 123 Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec
124 Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec
a9e2aefa 125
126 // Segments inside a station
9cbdf048 127 TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station
128 Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station
a9e2aefa 129
8429a5e4 130 // Reconstructed tracks
a9e2aefa 131 TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks
132 Int_t fNRecTracks; // number of reconstructed tracks
133
8429a5e4 134 // Track hits on reconstructed tracks
135 TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks
136 Int_t fNRecTrackHits; // number of hits on reconstructed tracks
137
c7ba256d 138 // Objects needed for tree writing
139 AliMUONRecoEvent *fRecoEvent; // the reconstructed event
140 TTree *fEventTree; // tree of reconstructed events
141 TFile *fTreeFile; // file where the tree is outputed
142
a9e2aefa 143 // Functions
144 void ResetHitsForRec(void);
145 void MakeEventToBeReconstructed(void);
146 void AddHitsForRecFromGEANT(TTree *TH);
147 void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits);
148 AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal);
149/* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */
150 void AddHitsForRecFromRawClusters(TTree* TR);
151 void SortHitsForRecWithIncreasingChamber();
152 void MakeSegments(void);
153 void ResetSegments(void);
154 void MakeSegmentsPerStation(Int_t Station);
155 void MakeTracks(void);
8429a5e4 156 void ResetTrackHits(void);
a9e2aefa 157 void ResetTracks(void);
158 Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
159 Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
160 void MakeTrackCandidates(void);
161 void FollowTracks(void);
8429a5e4 162 void RemoveDoubleTracks(void);
a9e2aefa 163
ecfa008b 164 ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE
a9e2aefa 165 };
166
167#endif