Correcting the comment
[u/mrichter/AliRoot.git] / TUHKMgen / TUHKMgen.h
CommitLineData
b1c2e580 1// This class implements the FASTMC generator model into AliROOT.
2// For the aliroot implementation we make use only of the Bjorken-like
3// initial state.
4// Please look into the FASTMC articles for more documentation on the
5// needed parameters.
6
7#ifndef TUHKMgen_H
8#define TUHKMgen_H
9
10#ifndef ROOT_TGenerator
11#include "TGenerator.h"
12#endif
13
14#ifndef INITIALSTATEHYDJET_INCLUDED
15#include "InitialStateHydjet.h"
16#endif
17
18#ifndef DATABASE_PDG
19#include "DatabasePDG.h"
20#endif
21
22#include <string>
23using namespace std;
24
25class TUHKMgen : public TGenerator {
b1c2e580 26 public:
27 TUHKMgen();
28 virtual ~TUHKMgen();
29 virtual void Initialize();
30 virtual void GenerateEvent();
31 virtual Int_t ImportParticles(TClonesArray *particles,Option_t* option="prim");
32 virtual TObjArray* ImportParticles(Option_t* option="prim");
33 // this function makes available the PDG info in our database
34 virtual DatabasePDG* PDGInfo() const {return fInitialState->PDGInfo();}
35
36 // Setters
37 // set reasonable default parameters suited for central Au+Au collisions at RHIC(200GeV)
38 void SetAllParametersRHIC();
39 // set reasonable default parameters suited for central Pb+Pb collisions at LHC(5.5TeV)
40 void SetAllParametersLHC();
41
42 void SetEcms(Double_t value) {fHydjetParams.fSqrtS = value;} // CMS energy per nucleon [GeV] (<2.24 given temperature and ch pot are used)
43 void SetAw(Double_t value) {fHydjetParams.fAw = value;} // nuclei mass number
44 void SetIfb(Int_t value) {fHydjetParams.fIfb = value;} //b-simulation: 0-fix,1-distributed
45 void SetBfix(Double_t value) {fHydjetParams.fBfix = value;} // fix impact parameter
46 void SetBmin(Double_t value) {fHydjetParams.fBmin = value;} // Minimum impact parameter
47 void SetBmax(Double_t value) {fHydjetParams.fBmax = value;} // Maximum impact parameter
48 void SetChFrzTemperature(Double_t value) {fHydjetParams.fT = value;} // Temperature for the chemical freezeout [GeV]
49 void SetMuB(Double_t value) {fHydjetParams.fMuB = value;} // Baryonic chemical potential [GeV]
50 void SetMuS(Double_t value) {fHydjetParams.fMuS = value;} // Strangeness chemical potential [GeV]
51 void SetMuQ(Double_t value) {fHydjetParams.fMuI3 = value;} // Isospin chemical potential [GeV]
52 void SetThFrzTemperature(Double_t value) {fHydjetParams.fThFO = value;} // Temperature for the thermal freezeout [GeV]
53 void SetMuPionThermal(Double_t value) {fHydjetParams.fMu_th_pip = value;} // Chemical potential for pi+ at thermal freezeout [GeV]
54
55
56 void SetSeed(Int_t value) {fHydjetParams.fSeed = value;} //parameter to set the random nuber seed (=0 the current time is used
57 //to set the random generator seed, !=0 the value fSeed is
58 //used to set the random generator seed and then the state of random
59 //number generator in PYTHIA MRPY(1)=fSeed
60
61
62
63 void SetTauB(Double_t value) {fHydjetParams.fTau = value;} // Proper time for the freeze-out hypersurface [fm/c]
64 void SetSigmaTau(Double_t value) {fHydjetParams.fSigmaTau = value;} // Standard deviation for the proper time (emission duration) [fm/c]
65 void SetRmaxB(Double_t value) {fHydjetParams.fR = value;} // Maximal transverse radius [fm]
66 void SetYlMax(Double_t value) {fHydjetParams.fYlmax = value;} // Maximal fireball longitudinal rapidity
67 void SetEtaRMax(Double_t value) {fHydjetParams.fUmax = value;} // Maximal transverse velocity
68 void SetMomAsymmPar(Double_t value) {fHydjetParams.fDelta = value;} // Momentum asymmetry parameter
69 void SetCoordAsymmPar(Double_t value) {fHydjetParams.fEpsilon = value;} // Coordinate asymmetry parameter
70
71
72 void SetFlagWeakDecay(Int_t value) {fHydjetParams.fWeakDecay = value;} //flag to switch on/off weak hadron decays <0: decays off, >0: decays on, (default: 0)
73
74
75 void SetEtaType(Int_t value) {fHydjetParams.fEtaType = value;} // flag to choose rapidity distribution, if fEtaType<=0,
76 //then uniform rapidity distribution in [-fYlmax,fYlmax] if fEtaType>0,
77 //then Gaussian with dispertion = fYlmax
78
79
80 void SetGammaS(Double_t value) {fHydjetParams.fCorrS = value;} // Strangeness suppression parameter (if gamma_s<=0 then it will be calculated)
81 //not needed now void SetHdec(Double_t value) {fHydjetParams.fTime = value;} // Enable/disable hadronic decays (<0 no decays, >=0 decays)
82
83//PYQUEN parameters
84 void SetPyquenNhsel(Int_t value) {fHydjetParams.fNhsel = value;} // Flag to choose the type of event to be generated
85
86 void SetPyquenShad(Int_t value) {fHydjetParams.fIshad = value;} //flag to switch on/off impact parameter dependent nuclear
87 // shadowing for gluons and light sea quarks (u,d,s) (0: shadowing off,
88 // 1: shadowing on for fAw=207, 197, 110, 40, default: 1
89
90 void SetPyquenPtmin(Double_t value) {fHydjetParams.fPtmin = value;} // Pyquen input parameter for minimum Pt of parton-parton scattering (5GeV<pt<500GeV)
91 // fNhsel = 0 --> UHKM fireball, no jets
92 // fNhsel = 1 --> UHKM fireball, jets with no quenching
93 // fNhsel = 2 --> UHKM fireball, jets with quenching
94 // fNhsel = 3 --> no UHKM fireball, jets with no quenching
95 // fNhsel = 4 --> no UHKM fireball, jets with quenching
96
97 void SetPyquenT0(Double_t value) {fHydjetParams.fT0 = value;} //proper QGP formation tempereture
98 void SetPyquenTau0(Double_t value) {fHydjetParams.fTau0 = value;} //proper QGP formation time in fm/c (0.01<fTau0<10)
99 void SetPyquenNf(Int_t value) {fHydjetParams.fNf = value;} //number of active quark flavours N_f in QGP fNf=0, 1,2 or 3
100 void SetPyquenIenglu(Int_t value) {fHydjetParams.fIenglu = value;} // flag to fix type of in-medium partonic energy loss
101 //(0: radiative and collisional loss, 1: radiative loss only, 2:
102 //collisional loss only) (default: 0);
103 void SetPyquenIanglu(Int_t value) {fHydjetParams.fIanglu = value;} //flag to fix type of angular distribution of in-medium emitted
104 // gluons (0: small-angular, 1: wide-angular, 2:collinear) (default: 0).
105
106
107 void SetPDGParticleFile(Char_t *name) {strcpy(fParticleFilename, name);} // Set the filename containing the particle PDG info
108 void SetPDGDecayFile(Char_t *name) {strcpy(fDecayFilename, name);} // Set the filename containing the PDG decay channels info
109 void SetPDGParticleStable(Int_t pdg, Bool_t value) { // Turn on/off the decay flag for a PDG particle
110 fStableFlagPDG[fStableFlagged] = pdg;
111 fStableFlagStatus[fStableFlagged++] = value;
112 }
113 void SetUseCharmParticles(Bool_t flag) {fUseCharmParticles = flag;}
114 void SetMinimumWidth(Double_t value) {fMinWidth = value;}
115 void SetMaximumWidth(Double_t value) {fMaxWidth = value;}
116 void SetMinimumMass(Double_t value) {fMinMass = value;}
117 void SetMaximumMass(Double_t value) {fMaxMass = value;}
118
119 //Getters
120
121 Double_t GetEcms() {return fHydjetParams.fSqrtS;}
122 Double_t GetAw() {return fHydjetParams.fAw;}
123 Double_t GetIfb() {return fHydjetParams.fIfb;}
124 Double_t GetBfix() {return fHydjetParams.fBfix;}
125 Double_t GetBmin() {return fHydjetParams.fBmin;}
126 Double_t GetBmax() {return fHydjetParams.fBmax;}
127 Double_t GetChFrzTemperature() {return fHydjetParams.fT;}
128 Double_t GetMuB() {return fHydjetParams.fMuB;}
129 Double_t GetMuS() {return fHydjetParams.fMuS;}
130 Double_t GetMuQ() {return fHydjetParams.fMuI3;}
131 Double_t GetThFrzTemperature() {return fHydjetParams.fThFO;}
132 Double_t GetMuPionThermal() {return fHydjetParams.fMu_th_pip;}
133 Int_t GetSeed() {return fHydjetParams.fSeed;}
134 Double_t GetTauB() {return fHydjetParams.fTau;}
135 Double_t GetSigmaTau() {return fHydjetParams.fSigmaTau;}
136 Double_t GetRmaxB() {return fHydjetParams.fR;}
137 Double_t GetYlMax() {return fHydjetParams.fYlmax;}
138 Double_t GetEtaRMax() {return fHydjetParams.fUmax;}
139 Double_t GetMomAsymmPar() {return fHydjetParams.fDelta;}
140 Double_t GetCoordAsymmPar() {return fHydjetParams.fEpsilon;}
141 Int_t GetFlagWeakDecay() {return fHydjetParams.fWeakDecay;}
142 Int_t GetEtaType() {return fHydjetParams.fEtaType;}
143 Double_t GetGammaS() {return fHydjetParams.fCorrS;}
144 Int_t GetPyquenNhsel() {return fHydjetParams.fNhsel;}
145 Int_t GetPyquenShad() {return fHydjetParams.fIshad;}
146 Double_t GetPyquenPtmin() {return fHydjetParams.fPtmin;}
147 Double_t GetPyquenT0() {return fHydjetParams.fT0;}
148 Double_t GetPyquenTau0() {return fHydjetParams.fTau0;}
149 Double_t GetPyquenNf() {return fHydjetParams.fNf;}
150 Double_t GetPyquenIenglu() {return fHydjetParams.fIenglu;}
151 Double_t GetPyquenIanglu() {return fHydjetParams.fIanglu;}
152
153 Char_t* GetPDGParticleFile() {return fParticleFilename;}
154 Char_t* GetPDGDecayFile() {return fDecayFilename;}
155 Bool_t GetUseCharmParticles(){return fUseCharmParticles;}
156 Double_t GetMinimumWidth() {return fMinWidth;}
157 Double_t GetMaximumWidth() {return fMaxWidth;}
158 Double_t GetMinimumMass() {return fMinMass;}
159 Double_t GetMaximumMass() {return fMaxMass;}
160
786056a2 161 void Print(const Option_t* opt="") const;
162
163 protected:
164 InitialStateHydjet *fInitialState;
165 ParticleAllocator fAllocator;
166 List_t fSourceList;
167 List_t fSecondariesList;
168 Int_t fNPprim;
169 Int_t fNPsec;
170 InitialParamsHydjet_t fHydjetParams; // list of parameters for the initial state
171 // details for the PDG database
172 Char_t fParticleFilename[256]; // particle list filename
173 Char_t fDecayFilename[256]; // decay table filename
174 Int_t fStableFlagPDG[500]; // array of PDG codes flagged to be stable
175 Bool_t fStableFlagStatus[500]; // array of decay flag status
176 Int_t fStableFlagged; // number of toggled decay flags
177 Bool_t fUseCharmParticles; // flag to turn on/off the use of charm particles
178 Double_t fMinWidth; // minimum decay width for the particles to be used from the PDG database
179 Double_t fMaxWidth; // maximum ----
180 Double_t fMinMass; // minimum mass for the particles to be used from the PDG database
181 Double_t fMaxMass; // maximum ----
182
183 void SetAllParameters();
184
185 private:
186 TUHKMgen(const TUHKMgen&);
187 TUHKMgen& operator=(const TUHKMgen&);
b1c2e580 188
189 ClassDef(TUHKMgen, 3) //Interface to FASTMC Event Generator
190};
191#endif
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