]>
Commit | Line | Data |
---|---|---|
7f6ddf58 | 1 | #ifndef ALIV0VERTEXER_H |
2 | #define ALIV0VERTEXER_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | //------------------------------------------------------------------ | |
7 | // V0 Vertexer Class | |
8 | // | |
9 | // Origin: Iouri Belikov, IReS, Strasbourg, Jouri.Belikov@cern.ch | |
10 | //------------------------------------------------------------------ | |
11 | ||
12 | #include "TObject.h" | |
13 | ||
566abf75 | 14 | class TTree; |
7f6ddf58 | 15 | class AliITStrackV2; |
16 | ||
17 | //_____________________________________________________________________________ | |
18 | class AliV0vertexer : public TObject { | |
19 | public: | |
20 | AliV0vertexer(); | |
21 | AliV0vertexer(const Double_t cuts[7]); | |
22 | void SetCuts(const Double_t cuts[7]); | |
5d390eda | 23 | void SetVertex(Double_t *vtx) { fX=vtx[0]; fY=vtx[1]; fZ=vtx[2]; } |
7f6ddf58 | 24 | |
566abf75 | 25 | Int_t Tracks2V0vertices(TTree *in, TTree *out); |
7f6ddf58 | 26 | Double_t PropagateToDCA(AliITStrackV2 *nt, AliITStrackV2 *pt); |
27 | ||
28 | void GetCuts(Double_t cuts[7]) const; | |
5d390eda | 29 | void GetVertex(Double_t *vtx) { vtx[0]=fX; vtx[1]=fY; vtx[2]=fZ; } |
7f6ddf58 | 30 | |
31 | private: | |
5d390eda | 32 | |
7f6ddf58 | 33 | Double_t fChi2max; // maximal allowed chi2 |
34 | Double_t fDNmin; // min. allowed negative daughter's impact parameter | |
35 | Double_t fDPmin; // min. allowed positive daughter's impact parameter | |
36 | Double_t fDCAmax; // maximal allowed DCA between the daughter tracks | |
37 | Double_t fCPAmax; // maximal allowed cosine of V0's pointing angle | |
38 | Double_t fRmin, fRmax; // max & min radii of the fiducial volume | |
39 | ||
5d390eda | 40 | Double_t fX; // X-coordinate of the primary vertex |
41 | Double_t fY; // Y-coordinate of the primary vertex | |
42 | Double_t fZ; // Z-coordinate of the primary vertex | |
43 | ||
7f6ddf58 | 44 | ClassDef(AliV0vertexer,1) // V0 verterxer |
45 | }; | |
46 | ||
47 | inline AliV0vertexer::AliV0vertexer() { | |
5d390eda | 48 | fChi2max=33.; |
49 | fDNmin=0.015; fDPmin=0.015; | |
50 | fDCAmax=0.01; fCPAmax=0.025; | |
51 | fRmin=0.5; fRmax=2.5; | |
52 | fX=fY=fZ=0.; | |
7f6ddf58 | 53 | } |
54 | ||
55 | inline AliV0vertexer::AliV0vertexer(const Double_t cuts[7]) { | |
56 | fChi2max=cuts[0]; | |
57 | fDNmin=cuts[1]; fDPmin=cuts[2]; | |
58 | fDCAmax=cuts[3]; fCPAmax=cuts[4]; | |
59 | fRmin=cuts[5]; fRmax=cuts[6]; | |
5d390eda | 60 | fX=fY=fZ=0.; |
7f6ddf58 | 61 | } |
62 | ||
63 | inline void AliV0vertexer::SetCuts(const Double_t cuts[7]) { | |
64 | fChi2max=cuts[0]; | |
65 | fDNmin=cuts[1]; fDPmin=cuts[2]; | |
66 | fDCAmax=cuts[3]; fCPAmax=cuts[4]; | |
67 | fRmin=cuts[5]; fRmax=cuts[6]; | |
68 | } | |
69 | ||
70 | inline void AliV0vertexer::GetCuts(Double_t cuts[7]) const { | |
71 | cuts[0]=fChi2max; | |
72 | cuts[1]=fDNmin; cuts[2]=fDPmin; | |
73 | cuts[3]=fDCAmax; cuts[4]=fCPAmax; | |
74 | cuts[5]=fRmin; cuts[6]=fRmax; | |
75 | } | |
76 | ||
77 | #endif | |
78 | ||
79 |