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 // set a cut on the Z coord. of the primary vertex (cm)
27 virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
28 // select process type
29 virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
30 // select structure function
31 virtual void SetStrucFunc(StrucFunc_t func = kGRV_HO) {fStrucFunc = func;}
32 // select pt of hard scattering
33 virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
34 {fPtHardMin = ptmin; fPtHardMax = ptmax; }
35 // set centre of mass energy
36 virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
37 // treat protons as inside nuclei
38 virtual void SetNuclei(Int_t a1, Int_t a2);
39 // get cross section of process
40 virtual Float_t GetXsection() {return fXsection;}
41 virtual void FinishRun();
43 // Assignment Operator
44 AliGenPythia & operator=(const AliGenPythia & rhs);
47 virtual void MakeHeader();
49 TClonesArray* fParticles; //Particle List
51 Process_t fProcess; //Process type
52 StrucFunc_t fStrucFunc; //Structure Function
53 Float_t fEnergyCMS; //Centre of mass energy
54 Float_t fKineBias; //!Bias from kinematic selection
55 Int_t fTrials; //!Number of trials
56 Int_t fFlavorSelect; //Heavy Flavor Selection
57 Float_t fXsection; //Cross-section
58 AliPythia *fPythia; //!Pythia
59 Float_t fPtHardMin; //lower pT-hard cut
60 Float_t fPtHardMax; //higher pT-hard cut
61 Int_t fNucA1; //mass number nucleus side 1
62 Int_t fNucA2; //mass number nucleus side 2
63 Bool_t fFullEvent; //!Write Full event if true
64 AliDecayer *fDecayer; //!Pointer to the decayer instance
65 Int_t fDebugEventFirst; //!First event to debug
66 Int_t fDebugEventLast; //!Last event to debug
68 // adjust the weight from kinematic cuts
71 ClassDef(AliGenPythia,1) // AliGenerator interface to Pythia