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 */
8 // Parameterisation of pi and K, eta and pt distributions
9 // used for the ALICE TDRs.
10 // Author: andreas.morsch@cern.ch
14 #include "AliGenerator.h"
15 #include "AliDecayer.h"
17 class AliGenHIJINGpara : public AliGenerator
22 AliGenHIJINGpara(Int_t npart);
23 virtual ~AliGenHIJINGpara();
24 virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
25 virtual void Generate();
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 *);
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
44 void DecayPi0(Float_t* orig, Float_t * p, Float_t time);
47 AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
48 AliGenHIJINGpara& operator = (const AliGenHIJINGpara ¶) ;
51 ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator