1 #ifndef ALITOFTRACKER_H
2 #define ALITOFTRACKER_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
9 //----------------------------------------------------------------------//
11 // AliTOFtracker Class //
12 // Task: Perform association of the ESD tracks to TOF Clusters //
13 // and Update ESD track with associated TOF Cluster parameters //
15 // -- Authors : S. Arcelli, C. Zampolli (Bologna University and INFN) //
16 // -- Contacts: Annalisa.De.Caro@cern.ch //
17 // -- : Chiara.Zampolli@bo.infn.it //
18 // -- : Silvia.Arcelli@bo.infn.it //
20 //----------------------------------------------------------------------//
22 #include "AliTracker.h"
23 #include "AliTOFpidESD.h"
30 class AliTOFRecoParam;
35 class AliTOFtracker : public AliTracker {
37 enum {kMaxCluster=77777}; //maximal number of the TOF clusters
42 AliTOFtracker(const AliTOFtracker &t); //Copy Ctor
43 AliTOFtracker& operator=(const AliTOFtracker &source); // ass. op.
45 virtual ~AliTOFtracker();
46 virtual Int_t Clusters2Tracks(AliESDEvent* /*event*/) {return -1;};
47 virtual Int_t PropagateBack(AliESDEvent* event);
48 virtual Int_t RefitInward(AliESDEvent* /*event*/) {return -1;};
49 virtual Int_t LoadClusters(TTree * cTree); // Load Clusters
50 virtual void UnloadClusters();// UnLoad Clusters
51 virtual AliCluster *GetCluster(Int_t /*index*/) const {return NULL;};
52 Bool_t GetTrackPoint(Int_t index, AliTrackPoint& p) const;
53 void InitCheckHists();
54 void SaveCheckHists();
58 Int_t FindClusterIndex(Double_t z) const; // Returns cluster index
59 void MatchTracks(Bool_t mLastStep); // Matching Algorithm
60 void CollectESD(); // Select starting Set for Matching
61 Float_t GetTimeZerofromTOF(AliESDEvent* /*event*/) const; // T0 from TOF
62 Float_t GetTimeZerofromT0(AliESDEvent* event) const; // T0 from T0
63 Float_t CorrectTimeWalk(Float_t dist,Float_t tof); // Time Walk correction
65 AliTOFRecoParam* fRecoParam; // Pointer to TOF Recon. Pars
66 AliTOFGeometry* fGeom; // Pointer to TOF geometry
67 AliTOFpidESD* fPid; // Pointer to TOF PID
68 AliTOFcluster *fClusters[kMaxCluster]; // pointers to the TOF clusters
70 Int_t fN; // Number of Clusters
71 Int_t fNseeds; // Number of track seeds
72 Int_t fNseedsTOF; // TPC BP tracks
73 Int_t fngoodmatch; // Correctly matched tracks
74 Int_t fnbadmatch; // Wrongly matched tracks
75 Int_t fnunmatch; // Unmatched tracks
76 Int_t fnmatch; // Total matched tracks
78 TClonesArray* fTracks; //! pointer to the TClonesArray with TOF tracks
79 TClonesArray* fSeeds; //! pointer to the TClonesArray with ESD tracks
80 //Digits/Reco QA histos
82 TH2F * fHDigClusMap; //Digits QA, Cluster Map
83 TH1F * fHDigNClus; //Digits QA, # of clusters on TOF/event
84 TH1F * fHDigClusTime;//Digits QA, Cluster Time (ns)
85 TH1F * fHDigClusToT; //Digits QA, Cluster ToT (ns)
86 TH1F * fHRecNClus; //Reco QA, cluster occupancy in search window
87 TH1F * fHRecDist;//Reco QA, track-TOF cluster closest distance (cm)
88 TH2F * fHRecSigYVsP;//Reco QA, track error in Y at TOF inner surface (cm)
89 TH2F * fHRecSigZVsP; //Reco QA, track error in Z at TOF inner surface (cm)
90 TH2F * fHRecSigYVsPWin;//Reco QA, search window size in Y (cm)
91 TH2F * fHRecSigZVsPWin;//Reco QA, search window size in X (cm)
92 TTree * fCalTree; // Tree for on-the-fly offline Calibration
93 // internal variables in tree for on-the-fly TOF Calibration
95 Int_t fIch; //TOF channel number
96 Float_t fToT; // Time over Threshold, ns
97 Float_t fTime; //TOF time, ps
98 Float_t fExpTimePi; // exp time, Pions
99 Float_t fExpTimeKa; // exp time, Kaons
100 Float_t fExpTimePr; // exp time, Protons
102 ClassDef(AliTOFtracker, 2) // TOF tracker