Updated version of ITS QA Checker and related modifications (Melinda)
[u/mrichter/AliRoot.git] / THijing / AliGenHijing.h
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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);
36b81802 27 virtual ~AliGenHijing();
28 virtual void Generate();
29 virtual void Init();
30 // set centre of mass energy
31 virtual void SetEnergyCMS(Float_t energy=5500) {fEnergyCMS=energy;}
32 virtual void SetReferenceFrame(TString frame="CMS")
33 {fFrame=frame;}
0c85382f 34
36b81802 35 virtual void SetImpactParameterRange(Float_t bmin = 0, Float_t bmax = 15.)
36 {fMinImpactParam=bmin; fMaxImpactParam=bmax;}
37 virtual void KeepFullEvent();
38 virtual void SetJetQuenching(Int_t flag=1) {fQuench = flag;}
39 virtual void SetShadowing(Int_t flag=1) {fShadowing = flag;}
40 virtual void SetDecaysOff(Int_t flag=1) {fDecaysOff = flag;}
41 virtual void SetTrigger(Int_t flag=kNoTrigger) {fTrigger = flag;}
42 virtual void SetFlavor(Int_t flag=0) {fFlavor = flag;}
43 virtual void SetEvaluate(Int_t flag=0) {fEvaluate = flag;}
44 virtual void SetSelectAll(Int_t flag=0) {fSelectAll = flag;}
45 virtual void SetRadiation(Int_t flag=3) {fRadiation = flag;}
46 virtual void SetSpectators(Int_t spects=1) {fSpectators = spects;}
47 virtual void SetPtJet(Float_t ptmin) {fPtMinJet = ptmin;}
48 virtual void SetSimpleJets(Int_t flag=0) {fSimpleJet = flag;}
49 virtual void SetNoGammas(Int_t flag=0) {fNoGammas = flag;}
50
51 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
52 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
53 virtual void SetJetPhiRange(Float_t phimin = -180., Float_t phimax = 180.)
54 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
55 virtual void SetBoostLHC(Int_t flag = 0) {fLHC = flag;}
b25b821e 56 virtual void SetRandomPz(Bool_t flag = 0) {fRandomPz = flag;}
f82795ff 57 virtual void SwitchOffHeavyQuarks(Bool_t flag = kTRUE) {fNoHeavyQuarks = flag;}
58
59
36b81802 60// Getters
14cae7e9 61 virtual TString GetReferenceFrame() const {return fFrame;}
14cae7e9 62 virtual void GetImpactParameterRange(Float_t& bmin, Float_t& bmax) const
36b81802 63 {bmin = fMinImpactParam; bmax = fMaxImpactParam;}
14cae7e9 64 virtual Int_t GetJetQuenching() const {return fQuench;}
65 virtual Int_t GetShadowing() const {return fShadowing;}
66 virtual Int_t GetTrigger() const {return fTrigger;}
67 virtual Int_t GetFlavor() const {return fFlavor;}
68 virtual Int_t GetRadiation() const {return fRadiation;}
69 virtual Int_t GetSpectators() const {return fSpectators;}
70 virtual Float_t GetPtJet() const {return fPtMinJet;}
71 virtual void GetJetEtaRange(Float_t& etamin, Float_t& etamax) const
36b81802 72 {etamin = fEtaMinJet; etamax = fEtaMaxJet;}
14cae7e9 73 virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax) const
36b81802 74 {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180./TMath::Pi();}
75
76
77// Physics Routines
14cae7e9 78 virtual Bool_t ProvidesCollisionGeometry() const {return kTRUE;}
79 virtual void EvaluateCrossSections();
36b81802 80 virtual TGraph* CrossSection() {return fDsigmaDb;}
81 virtual TGraph* BinaryCollisions() {return fDnDb;}
82 virtual Bool_t CheckTrigger();
83//
36b81802 84 protected:
85 Bool_t SelectFlavor(Int_t pid);
86 void MakeHeader();
36b81802 87 protected:
14cae7e9 88 TString fFrame; // Reference frame
36b81802 89 Float_t fMinImpactParam; // minimum impact parameter
90 Float_t fMaxImpactParam; // maximum impact parameter
91 Int_t fKeep; // Flag to keep full event information
92 Int_t fQuench; // Flag to switch on jet quenching
93 Int_t fShadowing; // Flag to switch on nuclear effects on parton distribution function
94 Int_t fDecaysOff; // Flag to turn off decays of pi0, K_s, D, Lambda, sigma
95 Int_t fTrigger; // Trigger type
96 Int_t fEvaluate; // Evaluate total and partial cross-sections
97 Int_t fSelectAll; // Flag to write the full event
98 Int_t fFlavor; // Selected particle flavor 4: charm+beauty 5: beauty
36b81802 99 Float_t fKineBias; // Bias from kinematic selection
100 Int_t fTrials; // Number of trials
36b81802 101 Float_t fXsection; // Cross-section
b88f5cea 102 THijing *fHijing; //!Hijing
36b81802 103 Float_t fPtHardMin; // lower pT-hard cut
104 Float_t fPtHardMax; // higher pT-hard cut
105 Int_t fSpectators; // put spectators on stack
106 TGraph* fDsigmaDb; // dSigma/db for the system
107 TGraph* fDnDb; // dNBinaryCollisions/db
108 Float_t fPtMinJet; // Minimum Pt of triggered Jet
109 Float_t fEtaMinJet; // Minimum eta of triggered Jet
110 Float_t fEtaMaxJet; // Maximum eta of triggered Jet
111 Float_t fPhiMinJet; // At least one of triggered Jets must be in this
112 Float_t fPhiMaxJet; // phi range
113 Int_t fRadiation; // Flag to switch on/off initial and final state radiation
114 Int_t fSimpleJet; // Flag to produce simple tiggered jet topology
115 Int_t fNoGammas; // Don't write gammas if flag "on"
36b81802 116// ZDC proposal (by Chiara) to store num. of SPECTATORS protons and neutrons
f0c86dd6 117 Int_t fProjectileSpecn;// Num. of spectator neutrons from projectile nucleus
118 Int_t fProjectileSpecp;// Num. of spectator protons from projectile nucleus
119 Int_t fTargetSpecn; // Num. of spectator neutrons from target nucleus
120 Int_t fTargetSpecp; // Num. of spectator protons from target nucleus
36b81802 121 Int_t fLHC; // Assume LHC as lab frame
f82795ff 122 Bool_t fRandomPz; // Randomise sign of pz event by event
123 Bool_t fNoHeavyQuarks; // If true no heavy quarks are produced
124
36b81802 125 private:
93a2041b 126 AliGenHijing(const AliGenHijing &Hijing);
127 AliGenHijing & operator=(const AliGenHijing & rhs);
128
36b81802 129 // adjust the weight from kinematic cuts
130 void AdjustWeights();
131 // check seleted daughters
132 Bool_t DaughtersSelection(TParticle* iparticle);
133 // check if stable
14cae7e9 134 Bool_t Stable(TParticle* particle) const;
36b81802 135
fc7e1b1c 136 ClassDef(AliGenHijing, 7) // AliGenerator interface to Hijing
36b81802 137};
138#endif
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