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