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 */
8 ////////////////////////////////////
9 // MUON event reconstructor in ALICE
10 ////////////////////////////////////
15 class AliMUONHitForRec;
20 class AliMUONRecoEvent;
25 // Constants which should be elsewhere ????
26 const Int_t kMaxMuonTrackingChambers = 10;
27 const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2;
29 class AliMUONEventReconstructor : public TObject {
32 AliMUONEventReconstructor(AliLoader* ); // default Constructor
33 virtual ~AliMUONEventReconstructor(void); // Destructor
34 AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor
35 AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator
37 // Parameters for event reconstruction: public methods
38 // Get and Set, Set to defaults
39 Double_t GetMinBendingMomentum(void) const {return fMinBendingMomentum;}
40 void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
41 Double_t GetMaxBendingMomentum(void) const {return fMaxBendingMomentum;}
42 void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;}
43 Double_t GetMaxChi2(void) const {return fMaxChi2;}
44 void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;}
45 Double_t GetMaxSigma2Distance(void) const {return fMaxSigma2Distance;}
46 void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
47 Double_t GetBendingResolution(void) const {return fBendingResolution;}
48 void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
49 Double_t GetNonBendingResolution(void) const {return fNonBendingResolution;}
50 void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
51 Double_t GetChamberThicknessInX0(void) const {return fChamberThicknessInX0;}
52 void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
53 Double_t GetSimpleBValue(void) const {return fSimpleBValue;}
54 void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
55 Double_t GetSimpleBLength(void) const {return fSimpleBLength;}
56 void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
57 Double_t GetSimpleBPosition(void) const {return fSimpleBPosition;}
58 void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
59 Int_t GetRecGeantHits(void) const {return fRecGeantHits;}
60 void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;}
61 Double_t GetEfficiency(void) const {return fEfficiency;}
62 void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
63 Int_t GetPrintLevel(void) const {return fPrintLevel;}
64 void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;}
65 void SetReconstructionParametersToDefaults(void);
67 // Parameters for GEANT background events
68 TFile* GetBkgGeantFile(void) const {return fBkgGeantFile;}
69 void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits
70 void NextBkgGeantEvent(void); // next event in background file for GEANT hits
72 // Hits for reconstruction
73 Int_t GetNHitsForRec(void) const {return fNHitsForRec;} // Number
75 // Reconstructed tracks
76 Int_t GetNRecTracks() const {return fNRecTracks;} // Number
77 void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;}
78 TClonesArray* GetRecTracksPtr(void) const {return fRecTracksPtr;} // Array
80 // Reconstructed trigger tracks
81 Int_t GetNRecTriggerTracks() const {return fNRecTriggerTracks;} // Number
82 void SetNRecTriggerTracks(Int_t NRecTriggerTracks) {fNRecTriggerTracks = NRecTriggerTracks;}
83 TClonesArray* GetRecTriggerTracksPtr(void) const {return fRecTriggerTracksPtr;} // Array
85 // Hits on reconstructed tracks
86 Int_t GetNRecTrackHits() const {return fNRecTrackHits;} // Number
87 void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;}
88 TClonesArray* GetRecTrackHitsPtr(void) const {return fRecTrackHitsPtr;} // Array
91 Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const;
92 Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam) const;
93 void EventReconstruct(void);
94 void EventReconstructTrigger(void);
95 void EventDump(void); // dump reconstructed event
96 void EventDumpTrigger(void); // dump reconstructed trigger event
97 void FillEvent(); // fill and write tree of reconstructed events
98 void SetTrackMethod(Int_t TrackMethod) {fTrackMethod = TrackMethod;} //AZ
99 Int_t GetTrackMethod(void) const {return fTrackMethod;} //AZ
100 Int_t fMuons; // AZ - number of muons within acceptance - just for tests
102 AliMUONData* GetMUONData() {return fMUONData;}
108 Int_t fTrackMethod; // AZ - tracking method
110 // Parameters for event reconstruction
111 Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane
112 // Parameters for event reconstruction
113 Double_t fMaxBendingMomentum; // maximum value (GeV/c) of momentum in bending plane
114 Double_t fMaxChi2; // maximum Chi2 per degree of Freedom
115 Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2)
116 Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm)
117 Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm)
118 Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
119 Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane
120 Double_t fBendingResolution; // chamber resolution (cm) in bending plane
121 Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane
122 Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths
123 // how to take it from simulation ????
124 Double_t fSimpleBValue; // simple magnetic field: value (kG)
125 Double_t fSimpleBLength; // simple magnetic field: length (cm)
126 Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm)
127 Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1)
128 Double_t fEfficiency; // chamber efficiency (used for GEANT hits only)
129 Int_t fPrintLevel; // print level
131 // Parameters for GEANT background events
132 // should be in AliMUON class ????
133 TFile *fBkgGeantFile; // pointer to file
134 TTree *fBkgGeantTK; // pointer to tree TK
135 TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK
136 TTree *fBkgGeantTH; // pointer to tree TH
137 TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH
138 Int_t fBkgGeantEventNumber; // event number
140 // Hits for reconstruction (should be in AliMUON ????)
141 TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction
142 Int_t fNHitsForRec; // number of hits for reconstruction
143 // Information per chamber (should be in AliMUONChamber ????)
144 Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec
145 Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec
147 // Segments inside a station
148 TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station
149 Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station
151 // Reconstructed tracks
152 TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks
153 Int_t fNRecTracks; // number of reconstructed tracks
155 // Reconstructed trigger tracks
156 TClonesArray *fRecTriggerTracksPtr; // pointer to array of reconstructed trigger tracks
157 Int_t fNRecTriggerTracks; // number of reconstructed trigger tracks
159 // Track hits on reconstructed tracks
160 TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks
161 Int_t fNRecTrackHits; // number of hits on reconstructed tracks
163 // Objects needed for tree writing
164 AliMUONRecoEvent *fRecoEvent; // the reconstructed event
165 TTree *fEventTree; // tree of reconstructed events
166 TFile *fTreeFile; // file where the tree is outputed
169 AliMUONData* fMUONData;
175 void ResetHitsForRec(void);
176 void MakeEventToBeReconstructed(void);
177 void AddHitsForRecFromGEANT(TTree *TH);
178 void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits);
179 AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal);
180 /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */
181 void AddHitsForRecFromRawClusters(TTree* TR);
182 void SortHitsForRecWithIncreasingChamber();
183 void MakeSegments(void);
184 void ResetSegments(void);
185 void MakeSegmentsPerStation(Int_t Station);
186 void MakeTracks(void);
187 Bool_t MakeTriggerTracks(void);
188 void ResetTrackHits(void);
189 void ResetTracks(void);
190 void ResetTriggerTracks(void);
191 Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
192 Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
193 void MakeTrackCandidates(void);
194 void FollowTracks(void);
195 void RemoveDoubleTracks(void);
196 void UpdateTrackParamAtHit(void);
197 void ValidateTracksWithTrigger(void);
200 //AZ - for Kalman Filter
201 void MakeTrackCandidatesK(void);
202 void FollowTracksK(void);
203 void RemoveDoubleTracksK(void);
204 void GoToVertex(void);
205 Bool_t CheckCandidateK(Int_t icand, Int_t nSeeds);
207 ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE