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c5f0f3c1 | 1 | #ifndef ALIITSVERTEXERPPZ_H |
2 | #define ALIITSVERTEXERPPZ_H | |
c95d6417 | 3 | /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
c5f0f3c1 | 6 | |
7 | #include <AliITSVertexer.h> | |
8 | ||
9 | ///////////////////////////////////////////////////////////////////// | |
10 | // // | |
11 | // Class for primary vertex Z coordinate reconstruction // | |
12 | // Optimized for p-p events (in general: low multiplicity events) // | |
13 | // // | |
14 | ///////////////////////////////////////////////////////////////////// | |
15 | ||
c5f0f3c1 | 16 | class TH1F; |
17 | class TArrayF; | |
18 | ||
19 | class AliITSVertexerPPZ : public AliITSVertexer { | |
20 | ||
21 | public: | |
22 | AliITSVertexerPPZ(); | |
88cb7938 | 23 | AliITSVertexerPPZ(TString fn, Float_t x0=0., Float_t y0=0.); // standard constructor |
c5f0f3c1 | 24 | virtual ~AliITSVertexerPPZ(); // destructor |
d681bb2d | 25 | virtual AliESDVertex* FindVertexForCurrentEvent(Int_t event); |
c5f0f3c1 | 26 | virtual void FindVertices(); |
27 | virtual Float_t GetZFound() const {return fZFound;} | |
28 | virtual Float_t GetZsig() const {return fZsig;} | |
29 | virtual void PrintStatus() const; | |
c95d6417 | 30 | virtual void SetDiffPhiMax(Float_t pm = 0.05){fDiffPhiMax = pm;} |
c5f0f3c1 | 31 | virtual void SetFirstLayerModules(Int_t m1 = 0, Int_t m2 = 79){fFirstL1 = m1; fLastL1 = m2;} |
32 | virtual void SetSecondLayerModules(Int_t m1 = 80, Int_t m2 = 239){fFirstL2 = m1; fLastL2 = m2;} | |
c95d6417 | 33 | virtual void SetWindow(Float_t w=3.){fWindow = w;} |
34 | static Float_t Curv(Double_t x1,Double_t y1, Double_t x2,Double_t y2, | |
35 | Double_t x3,Double_t y3); | |
c5f0f3c1 | 36 | |
c5f0f3c1 | 37 | |
38 | protected: | |
39 | Int_t fFirstL1; // first module of the first pixel layer | |
40 | Int_t fLastL1; // last module of the first pixel layer | |
41 | Int_t fFirstL2; // first module of the second pixel layer | |
42 | Int_t fLastL2; // last module of the second pixel layer | |
43 | Float_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels | |
44 | Float_t fX0; // Nominal x coordinate of the vertex | |
45 | Float_t fY0; // Nominal y coordinate of the vertex | |
7d62fb64 | 46 | //AliITS *fITS; //! pointer to the AliITS object |
c5f0f3c1 | 47 | Float_t fZFound; //! found value for the current event |
48 | Float_t fZsig; //! RMS of Z | |
c95d6417 | 49 | Float_t fWindow; // window width for Z search in mm (3 mm by def.) |
c5f0f3c1 | 50 | |
7d62fb64 | 51 | private: |
52 | void EvalZ(TH1F *hist,Int_t sepa, Int_t ncoinc, TArrayF *zval); | |
c5f0f3c1 | 53 | |
7d62fb64 | 54 | ClassDef(AliITSVertexerPPZ,3); |
c5f0f3c1 | 55 | }; |
56 | ||
57 | #endif |