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e36044d6 | 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 | ||
62d0ae06 | 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 | ||
e36044d6 | 15 | #include "AliGenerator.h" |
16 | #include "AliDecayer.h" | |
65de9f86 | 17 | #include "AliGeometry.h" |
e36044d6 | 18 | #include <TArrayI.h> |
65de9f86 | 19 | #include <TClonesArray.h> |
e36044d6 | 20 | |
21 | class TParticle; | |
22 | ||
23 | class AliGenMC : public AliGenerator | |
24 | { | |
25 | public: | |
26 | AliGenMC(); | |
27 | AliGenMC(Int_t npart); | |
28 | AliGenMC(const AliGenMC &MC); | |
29 | virtual ~AliGenMC(); | |
7a5ebd8f | 30 | virtual void Init(); |
a0609231 | 31 | virtual void SetForceDecay(Decay_t decay = kAll) {fForceDecay = decay;} |
e36044d6 | 32 | AliGenMC & operator=(const AliGenMC & rhs); |
33 | virtual void SetCutOnChild(Int_t flag = 0) {fCutOnChild = flag;} | |
34 | virtual void SetChildMomentumRange(Float_t pmin = 0, Float_t pmax = 1.e10) | |
35 | {fChildPMin = pmin; fChildPMax = pmax;} | |
36 | virtual void SetChildPtRange(Float_t ptmin = 0, Float_t ptmax = 20.) | |
37 | {fChildPtMin = ptmin; fChildPtMax = ptmax;} | |
38 | virtual void SetChildPhiRange(Float_t phimin = -180., Float_t phimax = 180) | |
39 | {fChildPhiMin = TMath::Pi()*phimin/180; | |
40 | fChildPhiMax = TMath::Pi()*phimax/180;} | |
41 | virtual void SetChildThetaRange(Float_t thetamin = 0, Float_t thetamax = 180) | |
42 | {fChildThetaMin = TMath::Pi()*thetamin/180; | |
43 | fChildThetaMax = TMath::Pi()*thetamax/180;} | |
44 | virtual void SetChildYRange(Float_t ymin = -12, Float_t ymax = 12) | |
45 | {fChildYMin = ymin; | |
46 | fChildYMax = ymax;} | |
65de9f86 | 47 | virtual void SetMaximumLifetime(Float_t time = 1.e-15) {fMaxLifeTime = time;} |
48 | ||
49 | virtual void SetGeometryAcceptance(AliGeometry * GeometryAcceptance=0) {fGeometryAcceptance = GeometryAcceptance;} | |
50 | ||
51 | virtual void SetPdgCodeParticleforAcceptanceCut(Int_t PdgCodeParticleforAcceptanceCut=0) {fPdgCodeParticleforAcceptanceCut = PdgCodeParticleforAcceptanceCut;} | |
52 | ||
53 | virtual void SetNumberOfAcceptedParticles(Int_t NumberOfAcceptedParticles=2) {fNumberOfAcceptedParticles = NumberOfAcceptedParticles;} | |
54 | ||
55 | virtual Bool_t CheckAcceptanceGeometry(Int_t np, TClonesArray* particles); | |
56 | ||
e36044d6 | 57 | protected: |
58 | // check if particle is selected as parent particle | |
62d0ae06 | 59 | Bool_t ParentSelected(Int_t ip) const; |
e36044d6 | 60 | // check if particle is selected as child particle |
62d0ae06 | 61 | Bool_t ChildSelected(Int_t ip) const; |
e36044d6 | 62 | // all kinematic selection cuts go here |
62d0ae06 | 63 | Bool_t KinematicSelection(TParticle *particle, Int_t flag) const; |
64 | Int_t CheckPDGCode(Int_t pdgcode) const; | |
e36044d6 | 65 | |
66 | protected: | |
fbfe101a | 67 | TArrayI fParentSelect; //!Parent particles to be selected |
68 | TArrayI fChildSelect; //!Decay products to be selected | |
e36044d6 | 69 | Int_t fCutOnChild; // Cuts on decay products (children) are enabled/disabled |
70 | Float_t fChildPtMin; // Children minimum pT | |
71 | Float_t fChildPtMax; // Children maximum pT | |
72 | Float_t fChildPMin; // Children minimum p | |
73 | Float_t fChildPMax; // Children maximum p | |
74 | Float_t fChildPhiMin; // Children minimum phi | |
75 | Float_t fChildPhiMax; // Children maximum phi | |
76 | Float_t fChildThetaMin; // Children minimum theta | |
77 | Float_t fChildThetaMax; // Children maximum theta | |
78 | Float_t fChildYMin; // Children minimum y | |
79 | Float_t fChildYMax; // Children maximum y | |
80 | Decay_t fForceDecay; // Decay channel forced | |
47fc6bd5 | 81 | Float_t fMaxLifeTime; // Maximum lifetime for unstable particles |
65de9f86 | 82 | AliGeometry * fGeometryAcceptance; // Geometry to which particles must be simulated |
83 | Int_t fPdgCodeParticleforAcceptanceCut; // Abs(PDG Code) of the particle to which the GeometryAcceptance must be applied | |
84 | Int_t fNumberOfAcceptedParticles; // Number of accepted particles in GeometryAcceptance with the right Abs(PdgCode) | |
47fc6bd5 | 85 | |
25c92a35 | 86 | ClassDef(AliGenMC,5) // AliGenerator implementation for generators using MC methods |
e36044d6 | 87 | }; |
88 | #endif | |
89 | ||
90 | ||
91 | ||
92 | ||
93 |