3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
10 #include "AliPythia.h"
16 class AliGenPythia : public AliGenMC
20 AliGenPythia(Int_t npart);
21 AliGenPythia(const AliGenPythia &Pythia);
22 virtual ~AliGenPythia();
23 virtual void Generate();
25 virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
26 // select process type
27 virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
28 // select structure function
29 virtual void SetStrucFunc(StrucFunc_t func = kGRV_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 // treat protons as inside nuclei
36 virtual void SetNuclei(Int_t a1, Int_t a2);
37 // get cross section of process
38 virtual Float_t GetXsection() {return fXsection;}
39 virtual void FinishRun();
41 // Assignment Operator
42 AliGenPythia & operator=(const AliGenPythia & rhs);
45 virtual void MakeHeader();
47 TClonesArray* fParticles; //Particle List
49 Process_t fProcess; //Process type
50 StrucFunc_t fStrucFunc; //Structure Function
51 Float_t fEnergyCMS; //Centre of mass energy
52 Float_t fKineBias; //!Bias from kinematic selection
53 Int_t fTrials; //!Number of trials
54 Int_t fFlavorSelect; //Heavy Flavor Selection
55 Float_t fXsection; //Cross-section
56 AliPythia *fPythia; //!Pythia
57 Float_t fPtHardMin; //lower pT-hard cut
58 Float_t fPtHardMax; //higher pT-hard cut
59 Int_t fNucA1; //mass number nucleus side 1
60 Int_t fNucA2; //mass number nucleus side 2
61 Bool_t fFullEvent; //!Write Full event if true
62 AliDecayer *fDecayer; //!Pointer to the decayer instance
63 Int_t fDebugEventFirst; //!First event to debug
64 Int_t fDebugEventLast; //!Last event to debug
65 TArrayF fEventVertex; //!The current event vertex
68 // adjust the weight from kinematic cuts
71 ClassDef(AliGenPythia,1) // AliGenerator interface to Pythia