CA tracker - updates
[u/mrichter/AliRoot.git] / MFT / AliMFTTrackerMU.h
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1#ifndef AliMFTTrackerMU_H
2#define AliMFTTrackerMU_H
3
4/* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
7//====================================================================================================================================================
8//
9// MFT tracker
10//
11// Class for the creation of the "global muon tracks" built from the tracks reconstructed in the
12// muon spectrometer and the clusters of the Muon Forward Tracker
13//
14// Contact author: antonio.uras@cern.ch
15//
16//====================================================================================================================================================
17
18#include "TTree.h"
19#include "AliLog.h"
20#include "AliGeomManager.h"
21#include "AliESDEvent.h"
22#include "AliESDMuonTrack.h"
e21f8bf5 23#include "AliESDMuonGlobalTrack.h"
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24#include "AliTracker.h"
25#include "AliRun.h"
26#include "AliMFT.h"
27#include "AliMUONTrackExtrap.h"
28#include "AliMUONTrack.h"
29#include "AliMUONESDInterface.h"
30#include "AliMuonForwardTrack.h"
31
32//====================================================================================================================================================
33
34class AliMFTTrackerMU : public AliTracker {
35
36public:
37
38 enum {kConverged, kDiverged};
39
40 AliMFTTrackerMU();
41 virtual ~AliMFTTrackerMU();
42
43 Int_t LoadClusters(TTree *cf);
44 void UnloadClusters();
45 Int_t Clusters2Tracks(AliESDEvent *event);
46
47 void SetNPlanesMFT(Int_t nPlanesMFT) { fNPlanesMFT = nPlanesMFT; }
48 void SeparateFrontBackClusters();
49
50 Int_t FindClusterInPlane(Int_t planeId);
51
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52 void SetMinResearchRadiusAtPlane(Int_t plane, Double_t radius) { if (plane>=0 && plane<fNMaxPlanes) fMinResearchRadiusAtPlane[plane] = radius; }
53
54 Double_t TryOneCluster(const AliMUONTrackParam &trackParam, AliMFTCluster *cluster);
55
65273893 56 Bool_t IsCorrectMatch(AliMFTCluster *cluster, Int_t labelMC);
57
58 void GetVertexFromMC();
59
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60 /// Dummy implementation
61 virtual Int_t PropagateBack(AliESDEvent* /*event*/) {return 0;}
62 /// Dummy implementation
63 virtual Int_t RefitInward(AliESDEvent* /*event*/) {return 0;}
64 /// Dummy implementation
65 virtual AliCluster *GetCluster(Int_t /*index*/) const {return 0;}
66
67
68protected:
69
70 static const Int_t fNMaxPlanes = AliMFTConstants::fNMaxPlanes; // max number of MFT planes
71 static const Double_t fRadLengthSi;
72 static const Int_t fMaxNCandidates = 1000;
73
74 AliESDEvent *fESD; //! pointer to the ESD event
75
76 AliMFT *fMFT; //!
77 AliMFTSegmentation *fSegmentation; //!
78 Int_t fNPlanesMFT, fNPlanesMFTAnalyzed;
79
80 Double_t fSigmaClusterCut; // to select the clusters in the MFT planes which are compatible with the extrapolated muon track
81 Double_t fScaleSigmaClusterCut; // to tune the cut on the compatible clusters in case of too many candidates
82
83 Int_t fNMaxMissingMFTClusters; // max. number of MFT clusters which can be missed in the global fit procedure
84 Bool_t fIsPlaneMandatory[fNMaxPlanes]; // specifies which MFT planes cannot be missed in the global fit procedure
85
86 Bool_t fGlobalTrackingDiverged; // to keep memory of a possible divergence in the global tracking finding
87
88 TClonesArray *fMFTClusterArray[fNMaxPlanes]; //! array of clusters for the planes of the MFT
89 TClonesArray *fMFTClusterArrayFront[fNMaxPlanes]; //! array of front clusters for the planes of the MFT
90 TClonesArray *fMFTClusterArrayBack[fNMaxPlanes]; //! array of back clusters for the planes of the MFT
91
92 TClonesArray *fCandidateTracks; //! array of candidate global tracks
93
94 AliMUONTrack *fMUONTrack; //! muon track being analyzed
95
96 AliMuonForwardTrack *fCurrentTrack; //! muon extrapolated track being tested
97 AliMuonForwardTrack *fFinalBestCandidate; //! best final candidate (if any)
98
99 // uncertainty on the x position of the primary vertex (seed for the extrapolation of the MUON tracks)
65273893 100 Double_t fXExtrapVertex;
101 Double_t fYExtrapVertex;
102 Double_t fZExtrapVertex;
103 Double_t fXExtrapVertexError;
104 Double_t fYExtrapVertexError;
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105
106 Bool_t fBransonCorrection; // if TRUE, Branson Correction is applied when extrapolating the MUON tracks to the vertex region
107
108 Double_t fMinResearchRadiusAtPlane[fNMaxPlanes];
109
110private:
111
112 AliMFTTrackerMU(const AliMFTTrackerMU &tracker);
113 AliMFTTrackerMU & operator=(const AliMFTTrackerMU &tracker);
65273893 114 ClassDef(AliMFTTrackerMU,2) //MFT tracker for muon tracks
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115
116};
117
118//====================================================================================================================================================
119
120#endif
121