/* $Id$ */
+// Parameterisation of pi and K, eta and pt distributions
+// used for the ALICE TDRs.
+// Author: andreas.morsch@cern.ch
+
+class TF1;
+
#include "AliGenerator.h"
-#include "TF1.h"
+#include "AliDecayer.h"
class AliGenHIJINGpara : public AliGenerator
{
AliGenHIJINGpara();
AliGenHIJINGpara(Int_t npart);
- AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
-
virtual ~AliGenHIJINGpara();
+ virtual void SetCutVertexZ(Float_t cut=999999.) {fCutVertexZ = cut;}
virtual void Generate();
virtual void Init();
- AliGenHIJINGpara & operator=(const AliGenHIJINGpara & rhs);
+ 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;}
+ virtual void Draw( const char *);
+
protected:
+ Int_t fNt; // CurrentTrack;
+ Int_t fNpartProd; // Total number of particles produced
+ 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
+
+ void DecayPi0(Float_t* orig, Float_t * p);
+
+ private:
+ AliGenHIJINGpara(const AliGenHIJINGpara &HIJINGpara);
+ AliGenHIJINGpara& operator = (const AliGenHIJINGpara ¶) ;
- 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
- ClassDef(AliGenHIJINGpara,1) // Hijing parametrisation generator
+ ClassDef(AliGenHIJINGpara,3) // Hijing parametrisation generator
};
#endif