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15d37333 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | // | |
16 | // Input: ESDevent | |
17 | // Functionality: find ESDtrack pairs according to some criteria to form one cosmic ray; AliTPCCosmicTrackfit then performs the combined track fit for the pair | |
18 | // | |
19 | // Xianguo Lu | |
20 | // lu@physi.uni-heidelberg.de | |
21 | // Xianguo.Lu@cern.ch | |
22 | // | |
23 | ||
24 | #ifndef ALICOSMICTRACKER_H | |
25 | #define ALICOSMICTRACKER_H | |
26 | ||
3aa6a136 | 27 | class AliESDCosmicTrack; |
15d37333 | 28 | class AliTPCCosmicTrackfit; |
29 | ||
3aa6a136 | 30 | class AliESDEvent; |
31 | ||
15d37333 | 32 | class AliCosmicTracker |
33 | { | |
34 | public: | |
35 | ||
3aa6a136 | 36 | typedef Bool_t (*CutFunc)(const AliESDtrack *trk); |
15d37333 | 37 | |
38 | AliCosmicTracker(const Int_t dlev=0, const TString tag="test"); | |
39 | ~AliCosmicTracker(); | |
40 | ||
41 | void SetESDEvent(AliESDEvent *esd); | |
42 | Int_t Process(const TString tag="", const Bool_t kprint=kFALSE); | |
43 | TClonesArray * GetTrackStack() const {return fTrackStack;} | |
44 | ||
45 | TTreeSRedirector * GetStreamer() const {return fStreamer;} | |
3aa6a136 | 46 | Int_t GetDebugLevel() const {return fDebugLevel;} |
47 | Int_t GetErrFlag() const; | |
15d37333 | 48 | |
49 | void SetCutPull( const Int_t ii, const Double_t cut){ fCutPull[ii] = cut;} | |
50 | void SetCutDelta( const Int_t ii, const Double_t cut){ fCutDelta[ii] = cut;} | |
51 | ||
52 | void SetCutdPhi(const Double_t cut){fCutdPhi = cut;} | |
53 | void SetCutdTheta(const Double_t cut){fCutdTheta = cut;} | |
54 | ||
55 | void SetUserESDtrackCut(CutFunc func){fUserCut = func;} | |
56 | ||
3aa6a136 | 57 | static TClonesArray *FindCosmic(AliESDEvent *event, const Bool_t kadd); |
58 | ||
15d37333 | 59 | private: |
60 | AliCosmicTracker(const AliCosmicTracker &p); | |
61 | AliCosmicTracker & operator=(const AliCosmicTracker &p); | |
62 | ||
3aa6a136 | 63 | static Double_t CutFindable(){return 0.5;} //cut on findable ratio of TPC cluster; DCA-anormlay is caused by laser!! should check trigger!! |
64 | ||
15d37333 | 65 | Bool_t ESDtrackCut(AliESDtrack * trk, Double_t &findabler); |
66 | ||
67 | Bool_t IsPair(AliESDtrack* trk0, AliESDtrack*trk1); | |
3aa6a136 | 68 | void WriteStreamer(Int_t ntrk, AliESDCosmicTrack *costrk); |
15d37333 | 69 | |
70 | CutFunc fUserCut; //user ESDtrack function | |
71 | TTreeSRedirector *fStreamer; //debug streamer | |
72 | Int_t fDebugLevel; //debug level | |
73 | ||
74 | AliESDEvent *fESDEvent; //esd | |
3aa6a136 | 75 | AliTPCCosmicTrackfit *fCosmicTrackfit; //cosmictrackfit |
15d37333 | 76 | TClonesArray *fTrackStack; //storing cosmic ray |
77 | ||
15d37333 | 78 | AliExternalTrackParam fTrack0; //upper track param estimated at x=0 from IsPair |
79 | AliExternalTrackParam fTrack1; //lower track param estimated at x=0 from IsPair | |
80 | ||
3aa6a136 | 81 | TVector3 fRawVtx; //raw vertex position calculated only from upper and lower inner most TPC cluster |
82 | Double_t fRawDCA; //raw DCA (2d) calculated only from upper and lower inner most TPC cluster | |
15d37333 | 83 | Double_t fdPhi; //phi0-phi1-pi of the EDS tracks |
84 | Double_t fCutdPhi; //cut | |
85 | ||
86 | Double_t fdTheta; //theta0+theta1-pi of the ESD tracks | |
87 | Double_t fCutdTheta; //cut | |
88 | ||
89 | Double_t fPull[5]; //pull of the two ESD tracks at x=0 | |
90 | Double_t fCutPull[5]; //pull | |
91 | ||
92 | Double_t fDelta[5]; //delta of the two ESD tracks at x=0 | |
93 | Double_t fCutDelta[5]; //delta cut | |
94 | ||
3aa6a136 | 95 | Int_t fErrFlagESDtrackCut; //error status in ESDtrackCut() |
96 | Int_t fErrFlagIsPair; //error status in IsPair() | |
97 | Int_t fErrFlagCosmicTrackfit; //error status in fCosmicTrackfit | |
15d37333 | 98 | }; |
99 | ||
100 | #endif | |
101 | ||
102 |