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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 | |
fff02fee | 9 | #include "AliGenMC.h" |
f1a48a38 | 10 | #include "AliPythia.h" |
c5d36e84 | 11 | #include "TArrayF.h" |
f87cfe57 | 12 | |
13 | class AliPythia; | |
14 | class TParticle; | |
fe4da5cc | 15 | |
fff02fee | 16 | class AliGenPythia : public AliGenMC |
fe4da5cc | 17 | { |
fe4da5cc | 18 | public: |
19 | AliGenPythia(); | |
20 | AliGenPythia(Int_t npart); | |
f87cfe57 | 21 | AliGenPythia(const AliGenPythia &Pythia); |
fe4da5cc | 22 | virtual ~AliGenPythia(); |
23 | virtual void Generate(); | |
24 | virtual void Init(); | |
a0b2b296 | 25 | // set a cut on the Z coord. of the primary vertex (cm) |
a0b2b296 | 26 | // |
11dfaf8d | 27 | virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1); |
fe4da5cc | 28 | // select process type |
f1a48a38 | 29 | virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;} |
fe4da5cc | 30 | // select structure function |
f1a48a38 | 31 | virtual void SetStrucFunc(StrucFunc_t func = kGRV_HO) {fStrucFunc = func;} |
fe4da5cc | 32 | // select pt of hard scattering |
f1a48a38 | 33 | virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10) |
34 | {fPtHardMin = ptmin; fPtHardMax = ptmax; } | |
fe4da5cc | 35 | // set centre of mass energy |
f1a48a38 | 36 | virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;} |
811826d8 | 37 | // treat protons as inside nuclei |
38 | virtual void SetNuclei(Int_t a1, Int_t a2); | |
fe4da5cc | 39 | // get cross section of process |
11dfaf8d | 40 | virtual Float_t GetXsection() {return fXsection;} |
9faa0850 | 41 | virtual void FinishRun(); |
42 | ||
f87cfe57 | 43 | // Assignment Operator |
44 | AliGenPythia & operator=(const AliGenPythia & rhs); | |
fff02fee | 45 | private: |
46 | Int_t GenerateMB(); | |
47 | virtual void MakeHeader(); | |
a0134e39 | 48 | protected: |
c5d36e84 | 49 | TClonesArray* fParticles; //Particle List |
50 | ||
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 | |
a0134e39 | 67 | private: |
a0134e39 | 68 | // adjust the weight from kinematic cuts |
69 | void AdjustWeights(); | |
70 | ||
f87cfe57 | 71 | ClassDef(AliGenPythia,1) // AliGenerator interface to Pythia |
fe4da5cc | 72 | }; |
73 | #endif | |
74 | ||
75 | ||
76 | ||
77 | ||
78 |