[u/mrichter/AliRoot.git] / EVGEN / AliGenHIJINGpara.h

#ifndef ALIGENHIJINGPARA_H
#define ALIGENHIJINGPARA_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

// Parameterisation of pi and K, eta and pt distributions
// used for the ALICE TDRs.
// Author: andreas.morsch@cern.ch

#include "AliGenerator.h"
#include "AliDecayer.h"
class TF1;

class AliGenHIJINGpara : public AliGenerator
{
 public:

  AliGenHIJINGpara();
  AliGenHIJINGpara(Int_t npart);
  AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
  AliGenHIJINGpara& operator = (const AliGenHIJINGpara &para) 
  {para.Copy(*this); return (*this);}
  virtual ~AliGenHIJINGpara();
  virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
  virtual void Generate();
  virtual void Init();
  virtual void SetPtRange(Float_t ptmin = 0., Float_t ptmax=15.);
  virtual void SetPi0Decays(Bool_t flag = kFALSE) {fPi0Decays = flag;}
  virtual void SetWeighting(Int_t flag = 0) {fAnalog = flag;}

 protected:
  Int_t   fNt;          // CurrentTrack;
  Bool_t  fPi0Decays;   // Flag for pi0 decays
  Float_t fPtWgtPi;     // pt weight for pions
  Float_t fPtWgtKa;     // pt weight for kaons
  TF1* fPtpi;           // Parametrised pt distribution for pi
  TF1* fPtka;           // Parametrised pt distribution for ka
  TF1* fETApic;         // Parametrised eta distribution for pi
  TF1* fETAkac;         // Parametrised eta distribution fro ka
  AliDecayer* fDecayer; // ! Pointer to pythia object for decays

 private:
  void DecayPi0(Float_t* orig, Float_t * p);
  void Copy(AliGenHIJINGpara &para) const;
  ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator
};
#endif
Commit	Line	Data
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
790bbabf	12	#include "AliGenerator.h"
2904363f	13	#include "AliDecayer.h"
65fb704d	14	class TF1;
790bbabf	15
	16	class AliGenHIJINGpara : public AliGenerator
	17	{
	18	public:
	19
	20	AliGenHIJINGpara();
	21	AliGenHIJINGpara(Int_t npart);
	22	AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
198bb1c7	23	AliGenHIJINGpara& operator = (const AliGenHIJINGpara &para)
198bb1c7	24	{para.Copy(this); return (this);}
790bbabf	25	virtual ~AliGenHIJINGpara();
971816d4	26	virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
790bbabf	27	virtual void Generate();
790bbabf	28	virtual void Init();
2067f62c	29	virtual void SetPtRange(Float_t ptmin = 0., Float_t ptmax=15.);
2067f62c	30	virtual void SetPi0Decays(Bool_t flag = kFALSE) {fPi0Decays = flag;}
bbb64b45	31	virtual void SetWeighting(Int_t flag = 0) {fAnalog = flag;}
bbb64b45	32
790bbabf	33	protected:
2904363f	34	Int_t fNt; // CurrentTrack;
2904363f	35	Bool_t fPi0Decays; // Flag for pi0 decays
bbb64b45	36	Float_t fPtWgtPi; // pt weight for pions
bbb64b45	37	Float_t fPtWgtKa; // pt weight for kaons
2904363f	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
bbb64b45	43
	44	private:
	45	void DecayPi0(Float_t* orig, Float_t * p);
	46	void Copy(AliGenHIJINGpara &para) const;
14f9f6b4	47	ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator
790bbabf	48	};
	49	#endif
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