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1 | #ifndef ALIGENHIJINGPARA_H | |
2 | #define ALIGENHIJINGPARA_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | // Parameterisation of pi and K, eta and pt distributions | |
9 | // used for the ALICE TDRs. | |
10 | // Author: andreas.morsch@cern.ch | |
11 | ||
12 | class TF1; | |
13 | ||
14 | #include "AliGenerator.h" | |
15 | #include "AliDecayer.h" | |
16 | ||
17 | class AliGenHIJINGpara : public AliGenerator | |
18 | { | |
19 | public: | |
20 | ||
21 | AliGenHIJINGpara(); | |
22 | AliGenHIJINGpara(Int_t npart); | |
23 | virtual ~AliGenHIJINGpara(); | |
24 | virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;} | |
25 | virtual void Generate(); | |
26 | virtual void Init(); | |
27 | virtual void SetPtRange(Float_t ptmin = 0., Float_t ptmax=15.); | |
28 | virtual void SetPi0Decays(Bool_t flag = kFALSE) {fPi0Decays = flag;} | |
29 | virtual void SetWeighting(Int_t flag = 0) {fAnalog = flag;} | |
30 | virtual void Draw( const char *); | |
31 | ||
32 | protected: | |
33 | Int_t fNt; // CurrentTrack; | |
34 | Int_t fNpartProd; // Total number of particles produced | |
35 | Bool_t fPi0Decays; // Flag for pi0 decays | |
36 | Float_t fPtWgtPi; // pt weight for pions | |
37 | Float_t fPtWgtKa; // pt weight for kaons | |
38 | TF1* fPtpi; // Parametrised pt distribution for pi | |
39 | TF1* fPtka; // Parametrised pt distribution for ka | |
40 | TF1* fETApic; // Parametrised eta distribution for pi | |
41 | TF1* fETAkac; // Parametrised eta distribution fro ka | |
42 | AliDecayer* fDecayer; // ! Pointer to pythia object for decays | |
43 | ||
44 | void DecayPi0(Float_t* orig, Float_t * p, Float_t time); | |
45 | ||
46 | private: | |
47 | AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara); | |
48 | AliGenHIJINGpara& operator = (const AliGenHIJINGpara ¶) ; | |
49 | ||
50 | ||
51 | ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator | |
52 | }; | |
53 | #endif | |
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