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 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
40 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
41 virtual void SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
42 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
43 virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
44 {fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
45 virtual void SetGammaPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
46 {fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}
48 // get cross section of process
49 virtual Float_t GetXsection() {return fXsection;}
50 virtual void FinishRun();
51 Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);
53 // Assignment Operator
54 AliGenPythia & operator=(const AliGenPythia & rhs);
57 virtual void MakeHeader();
59 TClonesArray* fParticles; //Particle List
61 Process_t fProcess; //Process type
62 StrucFunc_t fStrucFunc; //Structure Function
63 Float_t fEnergyCMS; //Centre of mass energy
64 Float_t fKineBias; //!Bias from kinematic selection
65 Int_t fTrials; //!Number of trials
66 Int_t fFlavorSelect; //Heavy Flavor Selection
67 Float_t fXsection; //Cross-section
68 AliPythia *fPythia; //!Pythia
69 Float_t fPtHardMin; //lower pT-hard cut
70 Float_t fPtHardMax; //higher pT-hard cut
71 Int_t fNucA1; //mass number nucleus side 1
72 Int_t fNucA2; //mass number nucleus side 2
73 Bool_t fFullEvent; //!Write Full event if true
74 AliDecayer *fDecayer; //!Pointer to the decayer instance
75 Int_t fDebugEventFirst; //!First event to debug
76 Int_t fDebugEventLast; //!Last event to debug
77 Float_t fEtaMinJet; // Minimum eta of triggered Jet
78 Float_t fEtaMaxJet; // Maximum eta of triggered Jet
79 Float_t fPhiMinJet; // Minimum phi of triggered Jet
80 Float_t fPhiMaxJet; // Maximum phi of triggered Jet
82 Float_t fEtaMinGamma; // Minimum eta of triggered gamma
83 Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
84 Float_t fPhiMinGamma; // Minimum phi of triggered gamma
85 Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
88 // adjust the weight from kinematic cuts
91 ClassDef(AliGenPythia,2) // AliGenerator interface to Pythia