Coding rule violations corrected.
[u/mrichter/AliRoot.git] / THijing / AliGenHijing.h
CommitLineData
36b81802 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// Generator using HIJING as an external generator
9// The main HIJING options are accessable for the user through this interface.
10// andreas.morsch@cern.ch
11
12#include "AliGenMC.h"
13#include <TString.h>
36b81802 14
15class THijing;
36b81802 16class TParticle;
17class TClonesArray;
18class TGraph;
19
20class AliGenHijing : public AliGenMC
21{
22 enum {kNoTrigger, kHardProcesses, kDirectPhotons};
23
24 public:
25 AliGenHijing();
26 AliGenHijing(Int_t npart);
27 AliGenHijing(const AliGenHijing &Hijing);
28 virtual ~AliGenHijing();
29 virtual void Generate();
30 virtual void Init();
31 // set centre of mass energy
32 virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
33 virtual void SetReferenceFrame(TString frame="CMS")
34 {fFrame=frame;}
0c85382f 35
36b81802 36 virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
37 {fMinImpactParam=bmin; fMaxImpactParam=bmax;}
38 virtual void KeepFullEvent();
39 virtual void SetJetQuenching(Int_t flag=1) {fQuench = flag;}
40 virtual void SetShadowing(Int_t flag=1) {fShadowing = flag;}
41 virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;}
42 virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;}
43 virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
44 virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;}
45 virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
46 virtual void SetRadiation(Int_t flag=3) {fRadiation = flag;}
47 virtual void SetSpectators(Int_t spects=1) {fSpectators = spects;}
48 virtual void SetPtJet(Float_t ptmin) {fPtMinJet = ptmin;}
49 virtual void SetSimpleJets(Int_t flag=0) {fSimpleJet = flag;}
50 virtual void SetNoGammas(Int_t flag=0) {fNoGammas = flag;}
51
52 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
53 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
54 virtual void SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
55 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
56 virtual void SetBoostLHC(Int_t flag = 0) {fLHC = flag;}
57// Getters
14cae7e9 58 virtual Float_t GetEnergyCMS() const {return fEnergyCMS;}
59 virtual TString GetReferenceFrame() const {return fFrame;}
60 virtual void GetProjectile(TString& tar, Int_t& a, Int_t& z) const
36b81802 61 {tar = fProjectile; a = fAProjectile; z = fZProjectile;}
14cae7e9 62 virtual void GetTarget(TString& tar, Int_t& a, Int_t& z) const
36b81802 63 {tar = fTarget; a = fATarget; z = fZTarget;}
14cae7e9 64 virtual void GetImpactParameterRange(Float_t& bmin, Float_t& bmax) const
36b81802 65 {bmin = fMinImpactParam; bmax = fMaxImpactParam;}
14cae7e9 66 virtual Int_t GetJetQuenching() const {return fQuench;}
67 virtual Int_t GetShadowing() const {return fShadowing;}
68 virtual Int_t GetTrigger() const {return fTrigger;}
69 virtual Int_t GetFlavor() const {return fFlavor;}
70 virtual Int_t GetRadiation() const {return fRadiation;}
71 virtual Int_t GetSpectators() const {return fSpectators;}
72 virtual Float_t GetPtJet() const {return fPtMinJet;}
73 virtual void GetJetEtaRange(Float_t& etamin, Float_t& etamax) const
36b81802 74 {etamin = fEtaMinJet; etamax = fEtaMaxJet;}
14cae7e9 75 virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
36b81802 76 {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180./TMath::Pi();}
77
78
79// Physics Routines
14cae7e9 80 virtual Bool_t ProvidesCollisionGeometry() const {return kTRUE;}
81 virtual void EvaluateCrossSections();
36b81802 82 virtual TGraph* CrossSection() {return fDsigmaDb;}
83 virtual TGraph* BinaryCollisions() {return fDnDb;}
84 virtual Bool_t CheckTrigger();
85//
86 AliGenHijing & operator=(const AliGenHijing & rhs);
87 protected:
88 Bool_t SelectFlavor(Int_t pid);
89 void MakeHeader();
36b81802 90 protected:
14cae7e9 91 TString fFrame; // Reference frame
36b81802 92 Float_t fMinImpactParam; // minimum impact parameter
93 Float_t fMaxImpactParam; // maximum impact parameter
94 Int_t fKeep; // Flag to keep full event information
95 Int_t fQuench; // Flag to switch on jet quenching
96 Int_t fShadowing; // Flag to switch on nuclear effects on parton distribution function
97 Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
98 Int_t fTrigger; // Trigger type
99 Int_t fEvaluate; // Evaluate total and partial cross-sections
100 Int_t fSelectAll; // Flag to write the full event
101 Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
102 Float_t fEnergyCMS; // Centre of mass energy
103 Float_t fKineBias; // Bias from kinematic selection
104 Int_t fTrials; // Number of trials
36b81802 105 Float_t fXsection; // Cross-section
b88f5cea 106 THijing *fHijing; //!Hijing
36b81802 107 Float_t fPtHardMin; // lower pT-hard cut
108 Float_t fPtHardMax; // higher pT-hard cut
109 Int_t fSpectators; // put spectators on stack
110 TGraph* fDsigmaDb; // dSigma/db for the system
111 TGraph* fDnDb; // dNBinaryCollisions/db
112 Float_t fPtMinJet; // Minimum Pt of triggered Jet
113 Float_t fEtaMinJet; // Minimum eta of triggered Jet
114 Float_t fEtaMaxJet; // Maximum eta of triggered Jet
115 Float_t fPhiMinJet; // At least one of triggered Jets must be in this
116 Float_t fPhiMaxJet; // phi range
117 Int_t fRadiation; // Flag to switch on/off initial and final state radiation
118 Int_t fSimpleJet; // Flag to produce simple tiggered jet topology
119 Int_t fNoGammas; // Don't write gammas if flag "on"
120
121// ZDC proposal (by Chiara) to store num. of SPECTATORS protons and neutrons
122 Int_t fSpecn; // Num. of spectator neutrons
123 Int_t fSpecp; // Num. of spectator protons
124 Int_t fLHC; // Assume LHC as lab frame
36b81802 125 private:
14cae7e9 126 void Copy(TObject &rhs) const;
36b81802 127 // adjust the weight from kinematic cuts
128 void AdjustWeights();
129 // check seleted daughters
130 Bool_t DaughtersSelection(TParticle* iparticle);
131 // check if stable
14cae7e9 132 Bool_t Stable(TParticle* particle) const;
36b81802 133
14cae7e9 134 ClassDef(AliGenHijing, 5) // AliGenerator interface to Hijing
36b81802 135};
136#endif
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