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110410f9 | 1 | #ifndef ALIGENHIJING_H |
2 | #define ALIGENHIJING_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 | ||
9 | #include "AliGenerator.h" | |
10 | #include "GenTypeDefs.h" | |
11 | #include <THijing.h> | |
12 | #include <TArrayI.h> | |
13 | ||
14 | class TArrayI; | |
15 | class TParticle; | |
16 | ||
17 | class AliGenHijing : public AliGenerator | |
18 | { | |
19 | enum {kNoTrigger, kHardProcesses, kDirectPhotons}; | |
20 | ||
21 | public: | |
22 | AliGenHijing(); | |
23 | AliGenHijing(Int_t npart); | |
24 | AliGenHijing(const AliGenHijing &Hijing); | |
25 | virtual ~AliGenHijing(); | |
26 | virtual void Generate(); | |
27 | virtual void Init(); | |
28 | // set centre of mass energy | |
29 | virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;} | |
30 | virtual void SetReferenceFrame(char* frame="CMS ") {fFrame=frame;} | |
31 | virtual void SetProjectile(char* proj="A ", Int_t a=208, Int_t z=97) | |
32 | {fProjectile = proj; | |
33 | fAProjectile = a; | |
34 | fZProjectile = z;} | |
35 | virtual void SetTarget(char* tar="A ", Int_t a=208, Int_t z=97) | |
36 | {fTarget = tar; | |
37 | fATarget = a; | |
38 | fZTarget =z;} | |
39 | virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax =15.) | |
40 | { fMinImpactParam=bmin; | |
41 | fMaxImpactParam=bmax; | |
42 | } | |
43 | virtual void KeepFullEvent(); | |
44 | virtual void SetJetQuenching(Int_t flag=1) {fQuench = flag;} | |
45 | virtual void SetShadowing(Int_t flag=1) {fShadowing = flag;} | |
46 | virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;} | |
47 | virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;} | |
48 | virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;} | |
49 | virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;} | |
50 | AliGenHijing & operator=(const AliGenHijing & rhs); | |
51 | // Physics Routines | |
52 | virtual void EvaluateCrossSections(); | |
53 | ||
54 | ||
55 | protected: | |
56 | char *fFrame; // Reference frame | |
57 | char *fProjectile; // Projectile | |
58 | char *fTarget; // Target | |
59 | Int_t fAProjectile; // Projectile A | |
60 | Int_t fZProjectile; // Projectile Z | |
61 | Int_t fATarget; // Target A | |
62 | Int_t fZTarget; // Target Z | |
63 | Float_t fMinImpactParam; // minimum impact parameter | |
64 | Float_t fMaxImpactParam; // maximum impact parameter | |
65 | Int_t fKeep; // Flag to keep full event information | |
66 | Int_t fQuench; // Flag to switch on jet quenching | |
67 | Int_t fShadowing; // Flag to switch on voclear effects on parton distribution function | |
68 | Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma | |
69 | Int_t fTrigger; // Trigger type | |
70 | Int_t fEvaluate; // Evaluate total and partial cross-sections | |
71 | Int_t fSelectAll; // Flag to write the full event | |
72 | ||
73 | Process_t fProcess; // Process type | |
74 | StrucFunc_t fStrucFunc; // Structure Function | |
75 | Decay_t fForceDecay; // Decay channel are forced | |
76 | Float_t fEnergyCMS; // Centre of mass energy | |
77 | Float_t fKineBias; // Bias from kinematic selection | |
78 | Int_t fTrials; // Number of trials | |
79 | TArrayI fParentSelect; // Parent particles to be selected | |
80 | TArrayI fChildSelect; // Decay products to be selected | |
81 | Float_t fXsection; // Cross-section | |
82 | THijing *fHijing; // Hijing | |
83 | Float_t fPtHardMin; // lower pT-hard cut | |
84 | Float_t fPtHardMax; // higher pT-hard cut | |
85 | ||
86 | private: | |
87 | // check if particle is selected as parent particle | |
88 | Bool_t ParentSelected(Int_t ip); | |
89 | // check if particle is selected as child particle | |
90 | Bool_t ChildSelected(Int_t ip); | |
91 | // all kinematic selection cuts go here | |
92 | Bool_t KinematicSelection(TParticle *particle); | |
93 | // adjust the weight from kinematic cuts | |
94 | void AdjustWeights(); | |
95 | // check seleted daughters | |
96 | Bool_t DaughtersSelection(TParticle* iparticle, TClonesArray* particles); | |
97 | ClassDef(AliGenHijing,1) // AliGenerator interface to Hijing | |
98 | }; | |
99 | #endif | |
100 | ||
101 | ||
102 | ||
103 | ||
104 |