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f29ba3e1 | 1 | #ifndef ALIMUONTRACKRECONSTRUCTOR_H |
29f1b13a | 2 | #define ALIMUONTRACKRECONSTRUCTOR_H |
692de412 | 3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
a9e2aefa | 5 | |
692de412 | 6 | /* $Id$ */ |
7 | ||
8 | /// \ingroup rec | |
9 | /// \class AliMUONTrackReconstructor | |
10 | /// \brief Class for the MUON track reconstruction | |
11 | /// | |
12 | ///////////////////////////////////// | |
13 | /// MUON track reconstructor in ALICE | |
14 | ///////////////////////////////////// | |
3831f268 | 15 | |
16 | #include <TObject.h> | |
190f97ea | 17 | #include "AliMUONConstants.h" |
a9e2aefa | 18 | |
a9e2aefa | 19 | class AliMUONHitForRec; |
20 | class AliMUONSegment; | |
21 | class TClonesArray; | |
22 | class TFile; | |
23 | class TTree; | |
52c9bc11 | 24 | class AliMUONData; |
25 | class AliRunLoader; | |
26 | class AliLoader; | |
29fc2c86 | 27 | class AliTrackReference; |
a9e2aefa | 28 | |
29f1b13a | 29 | class AliMUONTrackReconstructor : public TObject { |
a9e2aefa | 30 | |
31 | public: | |
29cac82a | 32 | AliMUONTrackReconstructor(AliLoader* loader, AliMUONData* data); // default Constructor |
29f1b13a | 33 | virtual ~AliMUONTrackReconstructor(void); // Destructor |
a9e2aefa | 34 | |
29f1b13a | 35 | // Parameters for track reconstruction: public methods |
a9e2aefa | 36 | // Get and Set, Set to defaults |
3831f268 | 37 | Double_t GetMinBendingMomentum(void) const {return fMinBendingMomentum;} |
a9e2aefa | 38 | void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;} |
3831f268 | 39 | Double_t GetMaxBendingMomentum(void) const {return fMaxBendingMomentum;} |
d0bfce8d | 40 | void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;} |
3831f268 | 41 | Double_t GetMaxChi2(void) const {return fMaxChi2;} |
d0bfce8d | 42 | void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;} |
3831f268 | 43 | Double_t GetMaxSigma2Distance(void) const {return fMaxSigma2Distance;} |
a9e2aefa | 44 | void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;} |
3831f268 | 45 | Double_t GetBendingResolution(void) const {return fBendingResolution;} |
a9e2aefa | 46 | void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;} |
3831f268 | 47 | Double_t GetNonBendingResolution(void) const {return fNonBendingResolution;} |
a9e2aefa | 48 | void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;} |
3831f268 | 49 | Double_t GetChamberThicknessInX0(void) const {return fChamberThicknessInX0;} |
a9e2aefa | 50 | void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;} |
3831f268 | 51 | Double_t GetSimpleBValue(void) const {return fSimpleBValue;} |
a9e2aefa | 52 | void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;} |
3831f268 | 53 | Double_t GetSimpleBLength(void) const {return fSimpleBLength;} |
a9e2aefa | 54 | void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;} |
3831f268 | 55 | Double_t GetSimpleBPosition(void) const {return fSimpleBPosition;} |
a9e2aefa | 56 | void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;} |
29fc2c86 | 57 | Int_t GetRecTrackRefHits(void) const {return fRecTrackRefHits;} |
58 | void SetRecTrackRefHits(Int_t RecTrackRefHits) {fRecTrackRefHits = RecTrackRefHits;} | |
3831f268 | 59 | Double_t GetEfficiency(void) const {return fEfficiency;} |
a9e2aefa | 60 | void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;} |
a9e2aefa | 61 | void SetReconstructionParametersToDefaults(void); |
62 | ||
29fc2c86 | 63 | // Parameters for Track Ref. background events |
64 | TFile* GetBkgTrackRefFile(void) const {return fBkgTrackRefFile;} | |
65 | void SetBkgTrackRefFile(Text_t *BkgTrackRefFileName); // set background file for track ref. hits | |
66 | void NextBkgTrackRefEvent(void); // next event in background file for track ref. hits | |
a9e2aefa | 67 | |
68 | // Hits for reconstruction | |
3831f268 | 69 | Int_t GetNHitsForRec(void) const {return fNHitsForRec;} // Number |
8429a5e4 | 70 | |
71 | // Reconstructed tracks | |
3831f268 | 72 | Int_t GetNRecTracks() const {return fNRecTracks;} // Number |
8429a5e4 | 73 | void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;} |
3831f268 | 74 | TClonesArray* GetRecTracksPtr(void) const {return fRecTracksPtr;} // Array |
52c9bc11 | 75 | |
8429a5e4 | 76 | // Hits on reconstructed tracks |
3831f268 | 77 | Int_t GetNRecTrackHits() const {return fNRecTrackHits;} // Number |
8429a5e4 | 78 | void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;} |
3831f268 | 79 | TClonesArray* GetRecTrackHitsPtr(void) const {return fRecTrackHitsPtr;} // Array |
a9e2aefa | 80 | |
81 | // Functions | |
3831f268 | 82 | Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const; |
83 | Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam) const; | |
a9e2aefa | 84 | void EventReconstruct(void); |
276c44b7 | 85 | void EventReconstructTrigger(void); |
04b5ea16 | 86 | void EventDump(void); // dump reconstructed event |
276c44b7 | 87 | void EventDumpTrigger(void); // dump reconstructed trigger event |
3f9fc997 | 88 | //PH void FillEvent(); // fill and write tree of reconstructed events |
b035a148 | 89 | void SetTrackMethod(Int_t iTrackMethod); //AZ |
90 | Int_t GetTrackMethod(void) const {return fTrackMethod;} | |
91 | void FillMUONTrack(void); // set track parameters at hits for Kalman track | |
8574c72f | 92 | //Int_t fMuons; // AZ - number of muons within acceptance - just for tests |
52c9bc11 | 93 | |
94 | AliMUONData* GetMUONData() {return fMUONData;} | |
95 | ||
9cbdf048 | 96 | protected: |
29f1b13a | 97 | AliMUONTrackReconstructor (const AliMUONTrackReconstructor& rhs); // copy constructor |
98 | AliMUONTrackReconstructor& operator=(const AliMUONTrackReconstructor& rhs); // assignment operator | |
9cbdf048 | 99 | |
a9e2aefa | 100 | private: |
101 | ||
343146bf | 102 | // Constants which should be elsewhere ???? |
103 | static const Int_t fgkMaxMuonTrackingChambers = 10; // Max number of Muon tracking chambers | |
30178c30 | 104 | static const Int_t fgkMaxMuonTrackingStations = 5; // Max number of Muon tracking stations |
343146bf | 105 | |
106 | // Defaults parameters for reconstruction | |
7e6d7e07 | 107 | static const Double_t fgkDefaultMinBendingMomentum; // default min. bending momentum for reconstruction |
108 | static const Double_t fgkDefaultMaxBendingMomentum; // default max. bending momentum for reconstruction | |
109 | static const Double_t fgkDefaultMaxChi2; // default max. track chi2 for reconstruction | |
110 | static const Double_t fgkDefaultMaxSigma2Distance; // default square of max. distance for window size | |
111 | static const Double_t fgkDefaultBendingResolution; // default bending coordinate resolution for reconstruction | |
112 | static const Double_t fgkDefaultNonBendingResolution; // default non bending coordinate resolution for reconstruction | |
113 | static const Double_t fgkDefaultChamberThicknessInX0; // default chamber thickness in X0 for reconstruction | |
343146bf | 114 | // Simple magnetic field: |
115 | // Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG | |
116 | // Length and Position from reco_muon.F, with opposite sign: | |
117 | // Length = ZMAGEND-ZCOIL | |
118 | // Position = (ZMAGEND+ZCOIL)/2 | |
119 | // to be ajusted differently from real magnetic field ???? | |
7e6d7e07 | 120 | static const Double_t fgkDefaultSimpleBValue; // default value of magnetic field (dipole) |
121 | static const Double_t fgkDefaultSimpleBLength; // default length of magnetic field (dipole) | |
122 | static const Double_t fgkDefaultSimpleBPosition; // default position of magnetic field (dipole) | |
29fc2c86 | 123 | static const Int_t fgkDefaultRecTrackRefHits; // default flag for reconstrution track ref. hits or Clusters |
124 | static const Double_t fgkDefaultEfficiency; // default chamber efficiency for track ref. hits recontruction | |
343146bf | 125 | |
343146bf | 126 | |
83dbc640 | 127 | Int_t fTrackMethod; // AZ - tracking method |
128 | ||
29f1b13a | 129 | // Parameters for track reconstruction |
a9e2aefa | 130 | Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane |
29f1b13a | 131 | // Parameters for track reconstruction |
d0bfce8d | 132 | Double_t fMaxBendingMomentum; // maximum value (GeV/c) of momentum in bending plane |
133 | Double_t fMaxChi2; // maximum Chi2 per degree of Freedom | |
a9e2aefa | 134 | Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2) |
343146bf | 135 | Double_t fRMin[fgkMaxMuonTrackingChambers]; // minimum radius (cm) |
136 | Double_t fRMax[fgkMaxMuonTrackingChambers]; // maximum radius (cm) | |
30178c30 | 137 | Double_t fSegmentMaxDistBending[fgkMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane |
138 | Double_t fSegmentMaxDistNonBending[fgkMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane | |
a9e2aefa | 139 | Double_t fBendingResolution; // chamber resolution (cm) in bending plane |
140 | Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane | |
141 | Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths | |
142 | // how to take it from simulation ???? | |
143 | Double_t fSimpleBValue; // simple magnetic field: value (kG) | |
144 | Double_t fSimpleBLength; // simple magnetic field: length (cm) | |
145 | Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm) | |
29fc2c86 | 146 | Int_t fRecTrackRefHits; // reconstruction from raw clusters (0) or from track ref. hits (1) |
147 | Double_t fEfficiency; // chamber efficiency (used for track ref. hits only) | |
a9e2aefa | 148 | |
29fc2c86 | 149 | // Parameters for track ref. background events |
a9e2aefa | 150 | // should be in AliMUON class ???? |
29fc2c86 | 151 | TFile *fBkgTrackRefFile; // pointer to file |
152 | TTree *fBkgTrackRefTK; // pointer to tree TK | |
153 | TClonesArray *fBkgTrackRefParticles; // pointer to list of particles in tree TK | |
154 | TTree *fBkgTrackRefTTR; // pointer to tree TTR | |
155 | Int_t fBkgTrackRefEventNumber; // event number | |
a9e2aefa | 156 | |
157 | // Hits for reconstruction (should be in AliMUON ????) | |
158 | TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction | |
159 | Int_t fNHitsForRec; // number of hits for reconstruction | |
160 | // Information per chamber (should be in AliMUONChamber ????) | |
343146bf | 161 | Int_t fNHitsForRecPerChamber[fgkMaxMuonTrackingChambers]; // number of HitsForRec |
162 | Int_t fIndexOfFirstHitForRecPerChamber[fgkMaxMuonTrackingChambers]; // index (0...) of first HitForRec | |
a9e2aefa | 163 | |
164 | // Segments inside a station | |
30178c30 | 165 | TClonesArray *fSegmentsPtr[fgkMaxMuonTrackingStations]; // array of pointers to the segments for each station |
166 | Int_t fNSegments[fgkMaxMuonTrackingStations]; // number of segments for each station | |
a9e2aefa | 167 | |
8429a5e4 | 168 | // Reconstructed tracks |
a9e2aefa | 169 | TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks |
170 | Int_t fNRecTracks; // number of reconstructed tracks | |
171 | ||
8429a5e4 | 172 | // Track hits on reconstructed tracks |
173 | TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks | |
174 | Int_t fNRecTrackHits; // number of hits on reconstructed tracks | |
175 | ||
52c9bc11 | 176 | // data container |
7e6d7e07 | 177 | AliMUONData* fMUONData; // Data container for MUON subsystem |
52c9bc11 | 178 | |
179 | // alice loader | |
7e6d7e07 | 180 | AliLoader* fLoader; // MUON loader to get data |
52c9bc11 | 181 | |
8574c72f | 182 | Int_t fMuons; // AZ - number of muons within acceptance - just for tests |
183 | ||
a9e2aefa | 184 | // Functions |
185 | void ResetHitsForRec(void); | |
186 | void MakeEventToBeReconstructed(void); | |
29fc2c86 | 187 | void AddHitsForRecFromTrackRef(TTree *TTR, Int_t Signal); |
188 | AliMUONHitForRec* NewHitForRecFromTrackRef(AliTrackReference* Hit, Int_t TrackNumber, Int_t Signal); | |
189 | TClonesArray *CleanTrackRefs(TTree *treeTR); | |
a9e2aefa | 190 | /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */ |
191 | void AddHitsForRecFromRawClusters(TTree* TR); | |
192 | void SortHitsForRecWithIncreasingChamber(); | |
193 | void MakeSegments(void); | |
194 | void ResetSegments(void); | |
195 | void MakeSegmentsPerStation(Int_t Station); | |
196 | void MakeTracks(void); | |
d837040f | 197 | Bool_t MakeTriggerTracks(void); |
8429a5e4 | 198 | void ResetTrackHits(void); |
a9e2aefa | 199 | void ResetTracks(void); |
200 | Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment); | |
201 | Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment); | |
202 | void MakeTrackCandidates(void); | |
203 | void FollowTracks(void); | |
8429a5e4 | 204 | void RemoveDoubleTracks(void); |
d837040f | 205 | void UpdateTrackParamAtHit(void); |
b8dc484b | 206 | void UpdateHitForRecAtHit(void); |
d837040f | 207 | void ValidateTracksWithTrigger(void); |
83dbc640 | 208 | |
209 | ||
210 | //AZ - for Kalman Filter | |
211 | void MakeTrackCandidatesK(void); | |
212 | void FollowTracksK(void); | |
213 | void RemoveDoubleTracksK(void); | |
214 | void GoToVertex(void); | |
30178c30 | 215 | Bool_t CheckCandidateK(Int_t icand, Int_t nSeeds) const; |
83dbc640 | 216 | |
29fc2c86 | 217 | |
29f1b13a | 218 | ClassDef(AliMUONTrackReconstructor, 0) // MUON track reconstructor in ALICE |
a9e2aefa | 219 | }; |
220 | ||
221 | #endif |