kZDiMuon added. (Zaida Conesa)
[u/mrichter/AliRoot.git] / PYTHIA6 / AliGenPythia.h
CommitLineData
8d2cd130 1#ifndef ALIGENPYTHIA_H
2#define ALIGENPYTHIA_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
cf57b268 6
8d2cd130 7/* $Id$ */
8
9//
10// Generator using the TPythia interface (via AliPythia)
11// to generate pp collisions.
12// Using SetNuclei() also nuclear modifications to the structure functions
13// can be taken into account. This makes, of course, only sense for the
14// generation of the products of hard processes (heavy flavor, jets ...)
15//
16// andreas.morsch@cern.ch
17//
18
19#include "AliGenMC.h"
20#include "AliPythia.h"
21
22class AliPythia;
23class TParticle;
e5c87a3d 24class AliGenPythiaEventHeader;
cf57b268 25class AliGenEventHeader;
32d6ef7d 26class AliStack;
5fa4b20b 27class AliRunLoader;
28
8d2cd130 29class AliGenPythia : public AliGenMC
30{
31 public:
32
33 typedef enum {kFlavorSelection, kParentSelection} StackFillOpt_t;
34 typedef enum {kCountAll, kCountParents, kCountTrackables} CountMode_t;
35 typedef enum {kCluster, kCell} JetRecMode_t;
36
37 AliGenPythia();
38 AliGenPythia(Int_t npart);
39 AliGenPythia(const AliGenPythia &Pythia);
40 virtual ~AliGenPythia();
41 virtual void Generate();
42 virtual void Init();
43 // set a cut on the Z coord. of the primary vertex (cm)
44 //
45 virtual void SetEventListRange(Int_t eventFirst=-1, Int_t eventLast=-1);
46 // select process type
47 virtual void SetProcess(Process_t proc = kPyCharm) {fProcess = proc;}
48 // select structure function
49 virtual void SetStrucFunc(StrucFunc_t func = kGRVHO) {fStrucFunc = func;}
50 // select pt of hard scattering
51 virtual void SetPtHard(Float_t ptmin = 0, Float_t ptmax = 1.e10)
52 {fPtHardMin = ptmin; fPtHardMax = ptmax; }
53 virtual void SetYHard(Float_t ymin = -1.e10, Float_t ymax = 1.e10)
54 {fYHardMin = ymin; fYHardMax = ymax; }
55 // Set initial and final state gluon radiation
56 virtual void SetGluonRadiation(Int_t iIn, Int_t iFin)
57 {fGinit = iIn; fGfinal = iFin;}
58 virtual void SetPtKick(Float_t kt = 1.)
59 {fPtKick = kt;}
60 // set centre of mass energy
61 virtual void SetEnergyCMS(Float_t energy = 5500) {fEnergyCMS = energy;}
62 // treat protons as inside nuclei
63 virtual void SetNuclei(Int_t a1, Int_t a2);
64 virtual void SetJetEtRange(Float_t etmin = 0., Float_t etmax = 1.e4)
65 {fEtMinJet = etmin; fEtMaxJet = etmax;}
66 virtual void SetJetEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
67 {fEtaMinJet = etamin; fEtaMaxJet = etamax;}
68 virtual void SetJetReconstructionMode(Int_t mode = kCell) {fJetReconstruction = mode;}
69 virtual void SetJetPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
70 {fPhiMinJet = TMath::Pi()*phimin/180.; fPhiMaxJet = TMath::Pi()*phimax/180.;}
71 virtual void SetGammaEtaRange(Float_t etamin = -20., Float_t etamax = 20.)
72 {fEtaMinGamma = etamin; fEtaMaxGamma = etamax;}
73 virtual void SetGammaPhiRange(Float_t phimin = 0., Float_t phimax = 360.)
74 {fPhiMinGamma = TMath::Pi()*phimin/180.; fPhiMaxGamma = TMath::Pi()*phimax/180.;}
75 // Set option for feed down from higher family
76 virtual void SetFeedDownHigherFamily(Bool_t opt) {
77 fFeedDownOpt = opt;
78 }
79 // Set option for selecting particles kept in stack according to flavor
80 // or to parent selection
81 virtual void SetStackFillOpt(StackFillOpt_t opt) {
82 fStackFillOpt = opt;
83 }
84 // Set fragmentation option
c125238c 85 virtual void SetFragmentation(Bool_t opt) {
8d2cd130 86 fFragmentation = opt;
87 }
88 // Set counting mode
c125238c 89 virtual void SetCountMode(CountMode_t mode) {
8d2cd130 90 fCountMode = mode;
91 }
b6bbf811 92 // Set quenching mode 0 = no, 1 = AM, 2 = IL
7ea3ea5b 93 virtual void SetQuench(Int_t flag = 0) {fQuench = flag;}
5fa4b20b 94 virtual void SetHadronisation(Int_t flag = 1) {fHadronisation = flag;}
95 virtual void SetReadFromFile(const Text_t *filname) {fFileName = filname; fReadFromFile = 1;}
9d7108a7 96 // Get interaction rate for pileup studies
97 virtual void SetInteractionRate(Float_t rate,Float_t timewindow = 90.e-6);
98 virtual Float_t GetInteractionRate() const {return fInteractionRate;}
8d2cd130 99 // get cross section of process
100 virtual Float_t GetXsection() const {return fXsection;}
101 // get triggered jets
102 void GetJets(Int_t& njets, Int_t& ntrig, Float_t[4][10]);
014a9521 103 void RecJetsUA1(Int_t& njets, Float_t jets[4][50]);
592f8307 104 void SetPycellParameters(Float_t etamax = 2., Int_t neta = 274, Int_t nphi = 432,
105 Float_t thresh = 0., Float_t etseed = 4.,
106 Float_t minet = 10., Float_t r = 1.);
107
5fa4b20b 108 void LoadEvent(AliStack* stack, Int_t flag = 0, Int_t reHadr = 0);
8d2cd130 109 // Getters
110 virtual Process_t GetProcess() {return fProcess;}
111 virtual StrucFunc_t GetStrucFunc() {return fStrucFunc;}
112 virtual void GetPtHard(Float_t& ptmin, Float_t& ptmax)
35346e8d 113 {ptmin = fPtHardMin; ptmax = fPtHardMax;}
8d2cd130 114 virtual Float_t GetEnergyCMS() {return fEnergyCMS;}
115 virtual void GetNuclei(Int_t& a1, Int_t& a2)
1a626d4e 116 {a1 = fAProjectile; a2 = fATarget;}
8d2cd130 117 virtual void GetJetEtRange(Float_t& etamin, Float_t& etamax)
118 {etamin = fEtaMinJet; etamax = fEtaMaxJet;}
119 virtual void GetJetPhiRange(Float_t& phimin, Float_t& phimax)
120 {phimin = fPhiMinJet*180./TMath::Pi(); phimax = fPhiMaxJet*180/TMath::Pi();}
121 virtual void GetGammaEtaRange(Float_t& etamin, Float_t& etamax)
122 {etamin = fEtaMinGamma; etamax = fEtaMaxGamma;}
123 virtual void GetGammaPhiRange(Float_t& phimin, Float_t& phimax)
124 {phimin = fPhiMinGamma*180./TMath::Pi(); phimax = fPhiMaxGamma*180./TMath::Pi();}
125 //
126 virtual void FinishRun();
127 Bool_t CheckTrigger(TParticle* jet1, TParticle* jet2);
aea21c57 128
129 //Used in case kPyW when limiting selected child properties
130 Bool_t CheckKinematicsOnChild();
8d2cd130 131
aea21c57 132
8d2cd130 133 // Assignment Operator
134 AliGenPythia & operator=(const AliGenPythia & rhs);
9d7108a7 135 void GetSubEventTime();
cf57b268 136 void AddHeader(AliGenEventHeader* header);
137
8d2cd130 138 protected:
139 // adjust the weight from kinematic cuts
f913ec4f 140 void AdjustWeights();
141 Int_t GenerateMB();
142 void MakeHeader();
9d7108a7 143 void GeneratePileup();
8d2cd130 144 Process_t fProcess; //Process type
145 StrucFunc_t fStrucFunc; //Structure Function
146 Float_t fEnergyCMS; //Centre of mass energy
147 Float_t fKineBias; //!Bias from kinematic selection
148 Int_t fTrials; //!Number of trials for current event
149 Int_t fTrialsRun; //!Number of trials for run
150 Float_t fQ; //Mean Q
151 Float_t fX1; //Mean x1
152 Float_t fX2; //Mean x2
f913ec4f 153 Float_t fEventTime; //Time of the subevent
154 Float_t fInteractionRate; //Interaction rate (set by user)
9d7108a7 155 Float_t fTimeWindow; //Time window for pileup events (set by user)
156 Int_t fCurSubEvent; //Index of the current sub-event
157 TArrayF *fEventsTime; //Subevents time for pileup
8d2cd130 158 Int_t fNev; //Number of events
159 Int_t fFlavorSelect; //Heavy Flavor Selection
160 Float_t fXsection; //Cross-section
161 AliPythia *fPythia; //!Pythia
162 Float_t fPtHardMin; //lower pT-hard cut
163 Float_t fPtHardMax; //higher pT-hard cut
164 Float_t fYHardMin; //lower y-hard cut
165 Float_t fYHardMax; //higher y-hard cut
8d2cd130 166 Int_t fGinit; //initial state gluon radiation
167 Int_t fGfinal; //final state gluon radiation
5fa4b20b 168 Int_t fHadronisation; //hadronisation
169 Int_t fNpartons; //Number of partons before hadronisation
170 Int_t fReadFromFile; //read partons from file
7ea3ea5b 171 Int_t fQuench; //Flag for quenching
8d2cd130 172 Float_t fPtKick; //Transverse momentum kick
173 Bool_t fFullEvent; //!Write Full event if true
174 AliDecayer *fDecayer; //!Pointer to the decayer instance
175 Int_t fDebugEventFirst; //!First event to debug
176 Int_t fDebugEventLast; //!Last event to debug
177 Float_t fEtMinJet; //Minimum et of triggered Jet
178 Float_t fEtMaxJet; //Maximum et of triggered Jet
179 Float_t fEtaMinJet; //Minimum eta of triggered Jet
180 Float_t fEtaMaxJet; //Maximum eta of triggered Jet
181 Float_t fPhiMinJet; //Minimum phi of triggered Jet
182 Float_t fPhiMaxJet; //Maximum phi of triggered Jet
183 Int_t fJetReconstruction; //Jet Reconstruction mode
184 Float_t fEtaMinGamma; // Minimum eta of triggered gamma
185 Float_t fEtaMaxGamma; // Maximum eta of triggered gamma
186 Float_t fPhiMinGamma; // Minimum phi of triggered gamma
187 Float_t fPhiMaxGamma; // Maximum phi of triggered gamma
592f8307 188 Float_t fPycellEtaMax; // Max. eta for Pycell
189 Int_t fPycellNEta; // Number of eta bins for Pycell
190 Int_t fPycellNPhi; // Number of phi bins for Pycell
191 Float_t fPycellThreshold; // Pycell threshold
192 Float_t fPycellEtSeed; // Pycell seed
193 Float_t fPycellMinEtJet; // Pycell min. jet et
194 Float_t fPycellMaxRadius; // Pycell cone radius
8d2cd130 195 StackFillOpt_t fStackFillOpt; // Stack filling with all particles with
196 // that flavour or only with selected
197 // parents and their decays
198 Bool_t fFeedDownOpt; // Option to set feed down from higher
199 // quark families (e.g. b->c)
200 Bool_t fFragmentation; // Option to activate fragmentation by Pythia
1d568bc2 201 Bool_t fSetNuclei; // Flag indicating that SetNuclei has been called
8d2cd130 202 //
203
5fa4b20b 204 CountMode_t fCountMode; // Options for counting when the event will be finished.
205 AliGenPythiaEventHeader* fHeader; //! Event header
206 AliRunLoader* fRL; //! Run Loader
2bcdbef3 207 const Text_t* fFileName; //! Name of file to read from
e5c87a3d 208
8d2cd130 209 // fCountMode = kCountAll --> All particles that end up in the
210 // stack are counted
211 // fCountMode = kCountParents --> Only selected parents are counted
212 // fCountMode = kCountTrackabless --> Only particles flagged for tracking
213 // are counted
214 //
e5c87a3d 215 ClassDef(AliGenPythia,5) // AliGenerator interface to Pythia
8d2cd130 216};
217#endif
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