- enum constants for paramterisation type (particle family) moved to AliGen*lib.h
[u/mrichter/AliRoot.git] / EVGEN / AliGenPythia.h
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a0134e39 1#ifndef ALIGENPYTHIA_H
2#define ALIGENPYTHIA_H
3da30618 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7
f87cfe57 8
fe4da5cc 9#include "AliGenerator.h"
f87cfe57 10#include "GenTypeDefs.h"
11#include <TArrayI.h>
12
65fb704d 13class AliDecayer;
f87cfe57 14class AliPythia;
15class TParticle;
fe4da5cc 16
17class AliGenPythia : public AliGenerator
18{
fe4da5cc 19 public:
20 AliGenPythia();
21 AliGenPythia(Int_t npart);
f87cfe57 22 AliGenPythia(const AliGenPythia &Pythia);
fe4da5cc 23 virtual ~AliGenPythia();
24 virtual void Generate();
25 virtual void Init();
26 // select process type
27 virtual void SetProcess(Process_t proc=charm) {fProcess=proc;}
28 // select structure function
29 virtual void SetStrucFunc(StrucFunc_t func=GRV_HO) {fStrucFunc=func;}
30 // select pt of hard scattering
31 virtual void SetPtHard(Float_t ptmin=0, Float_t ptmax=1.e10)
32 {fPtHardMin=ptmin; fPtHardMax=ptmax; }
33 // set centre of mass energy
34 virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
35 // force decay type
886b6f73 36 virtual void SetForceDecay(Decay_t decay=semimuonic) {fForceDecay=decay;}
811826d8 37 // treat protons as inside nuclei
38 virtual void SetNuclei(Int_t a1, Int_t a2);
fe4da5cc 39 // get cross section of process
40 virtual Float_t GetXsection() {return fXsection;}
a8228d85 41 // Check PDG code
42 virtual Int_t CheckPDGCode(Int_t pdgcode);
f87cfe57 43 // Assignment Operator
44 AliGenPythia & operator=(const AliGenPythia & rhs);
a0134e39 45 protected:
46 Process_t fProcess; // Process type
47 StrucFunc_t fStrucFunc; // Structure Function
48 Decay_t fForceDecay; // Decay channel are forced
49 Float_t fEnergyCMS; // Centre of mass energy
50 Float_t fKineBias; // Bias from kinematic selection
51 Int_t fTrials; // Number of trials
52 TArrayI fParentSelect; // Parent particles to be selected
53 TArrayI fChildSelect; // Decay products to be selected
54 Float_t fXsection; // Cross-section
a8a6107b 55 AliPythia *fPythia; //! Pythia
a0134e39 56 Float_t fPtHardMin; // lower pT-hard cut
57 Float_t fPtHardMax; // higher pT-hard cut
811826d8 58 Int_t fNucA1; // mass number nucleus side 1
59 Int_t fNucA2; // mass number nucleus side 2
60
c78d7f8c 61 AliDecayer *fDecayer; // ! pointer to the decayer instance
a0134e39 62 private:
63 // check if particle is selected as parent particle
64 Bool_t ParentSelected(Int_t ip);
65 // check if particle is selected as child particle
66 Bool_t ChildSelected(Int_t ip);
67 // all kinematic selection cuts go here
68 Bool_t KinematicSelection(TParticle *particle);
69 // adjust the weight from kinematic cuts
70 void AdjustWeights();
71
f87cfe57 72 ClassDef(AliGenPythia,1) // AliGenerator interface to Pythia
fe4da5cc 73};
74#endif
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