Allowing modularity of the MUON geometry during the generation (geant) phase with...
[u/mrichter/AliRoot.git] / EVGEN / AliGenHIJINGpara.h
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790bbabf 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
675e9664 8// Parameterisation of pi and K, eta and pt distributions
9// used for the ALICE TDRs.
10// Author: andreas.morsch@cern.ch
11
ac3faee4 12class TF1;
13
790bbabf 14#include "AliGenerator.h"
2904363f 15#include "AliDecayer.h"
790bbabf 16
17class AliGenHIJINGpara : public AliGenerator
18{
19 public:
20
21 AliGenHIJINGpara();
22 AliGenHIJINGpara(Int_t npart);
23 AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
198bb1c7 24 AliGenHIJINGpara& operator = (const AliGenHIJINGpara &para)
25 {para.Copy(*this); return (*this);}
790bbabf 26 virtual ~AliGenHIJINGpara();
971816d4 27 virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
790bbabf 28 virtual void Generate();
29 virtual void Init();
2067f62c 30 virtual void SetPtRange(Float_t ptmin = 0., Float_t ptmax=15.);
31 virtual void SetPi0Decays(Bool_t flag = kFALSE) {fPi0Decays = flag;}
bbb64b45 32 virtual void SetWeighting(Int_t flag = 0) {fAnalog = flag;}
cc692c80 33 virtual void Draw( const char *);
34
790bbabf 35 protected:
2904363f 36 Int_t fNt; // CurrentTrack;
2904363f 37 Bool_t fPi0Decays; // Flag for pi0 decays
bbb64b45 38 Float_t fPtWgtPi; // pt weight for pions
39 Float_t fPtWgtKa; // pt weight for kaons
2904363f 40 TF1* fPtpi; // Parametrised pt distribution for pi
41 TF1* fPtka; // Parametrised pt distribution for ka
42 TF1* fETApic; // Parametrised eta distribution for pi
43 TF1* fETAkac; // Parametrised eta distribution fro ka
44 AliDecayer* fDecayer; // ! Pointer to pythia object for decays
bbb64b45 45
bbb64b45 46 void DecayPi0(Float_t* orig, Float_t * p);
dc1d768c 47 void Copy(TObject &para) const;
14f9f6b4 48 ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator
790bbabf 49};
50#endif
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