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1 | #ifndef ALIGENMC_H |
| 2 | #define ALIGENMC_H |
| 3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 4 | * See cxx source for full Copyright notice */ |
| 5 | |
| 6 | /* $Id$ */ |
| 7 | |
| 8 | |
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9 | // Base class for generators using external MC generators. |
| 10 | // For example AliGenPythia using Pythia. |
| 11 | // Provides basic functionality: setting of kinematic cuts on |
| 12 | // decay products and particle selection. |
| 13 | // andreas.morsch@cern.ch |
| 14 | |
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15 | #include "AliGenerator.h" |
| 16 | #include "AliDecayer.h" |
| 17 | #include <TArrayI.h> |
| 18 | |
| 19 | class TParticle; |
| 20 | |
| 21 | class AliGenMC : public AliGenerator |
| 22 | { |
| 23 | public: |
| 24 | AliGenMC(); |
| 25 | AliGenMC(Int_t npart); |
| 26 | AliGenMC(const AliGenMC &MC); |
| 27 | virtual ~AliGenMC(); |
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28 | virtual void Init(); |
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29 | virtual void SetForceDecay(Decay_t decay = kAll) {fForceDecay = decay;} |
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30 | AliGenMC & operator=(const AliGenMC & rhs); |
| 31 | virtual void SetCutOnChild(Int_t flag = 0) {fCutOnChild = flag;} |
| 32 | virtual void SetChildMomentumRange(Float_t pmin = 0, Float_t pmax = 1.e10) |
| 33 | {fChildPMin = pmin; fChildPMax = pmax;} |
| 34 | virtual void SetChildPtRange(Float_t ptmin = 0, Float_t ptmax = 20.) |
| 35 | {fChildPtMin = ptmin; fChildPtMax = ptmax;} |
| 36 | virtual void SetChildPhiRange(Float_t phimin = -180., Float_t phimax = 180) |
| 37 | {fChildPhiMin = TMath::Pi()*phimin/180; |
| 38 | fChildPhiMax = TMath::Pi()*phimax/180;} |
| 39 | virtual void SetChildThetaRange(Float_t thetamin = 0, Float_t thetamax = 180) |
| 40 | {fChildThetaMin = TMath::Pi()*thetamin/180; |
| 41 | fChildThetaMax = TMath::Pi()*thetamax/180;} |
| 42 | virtual void SetChildYRange(Float_t ymin = -12, Float_t ymax = 12) |
| 43 | {fChildYMin = ymin; |
| 44 | fChildYMax = ymax;} |
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45 | virtual void SetMaximumLifetime(Float_t time = 1.e-15) {fMaxLifeTime = time;} |
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46 | protected: |
| 47 | // check if particle is selected as parent particle |
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48 | Bool_t ParentSelected(Int_t ip) const; |
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49 | // check if particle is selected as child particle |
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50 | Bool_t ChildSelected(Int_t ip) const; |
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51 | // all kinematic selection cuts go here |
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52 | Bool_t KinematicSelection(TParticle *particle, Int_t flag) const; |
| 53 | Int_t CheckPDGCode(Int_t pdgcode) const; |
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54 | |
| 55 | protected: |
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56 | TArrayI fParentSelect; //!Parent particles to be selected |
| 57 | TArrayI fChildSelect; //!Decay products to be selected |
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58 | Int_t fCutOnChild; // Cuts on decay products (children) are enabled/disabled |
| 59 | Float_t fChildPtMin; // Children minimum pT |
| 60 | Float_t fChildPtMax; // Children maximum pT |
| 61 | Float_t fChildPMin; // Children minimum p |
| 62 | Float_t fChildPMax; // Children maximum p |
| 63 | Float_t fChildPhiMin; // Children minimum phi |
| 64 | Float_t fChildPhiMax; // Children maximum phi |
| 65 | Float_t fChildThetaMin; // Children minimum theta |
| 66 | Float_t fChildThetaMax; // Children maximum theta |
| 67 | Float_t fChildYMin; // Children minimum y |
| 68 | Float_t fChildYMax; // Children maximum y |
| 69 | Decay_t fForceDecay; // Decay channel forced |
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70 | Float_t fMaxLifeTime; // Maximum lifetime for unstable particles |
| 71 | |
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72 | ClassDef(AliGenMC,4) // AliGenerator implementation for generators using MC methods |
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73 | }; |
| 74 | #endif |
| 75 | |
| 76 | |
| 77 | |
| 78 | |
| 79 | |
git://git.uio.no / u / mrichter / AliRoot.git / blame