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Hydjet
2.4
A Monte-Carlo model of jet quenching in ultrarelativistic heavy ion collisions
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Structure of input parameters. More...
#include <InitialParams.h>
Public Attributes | |
Int_t | fNevnt |
number of events | |
Int_t | femb |
embedding flag | |
Double_t | fSqrtS |
cms energy per nucleon | |
Double_t | fAw |
atomic number of colliding nuclei | |
Int_t | fIfb |
flag of type of centrality generation More... | |
Double_t | fBmin |
minimum impact parameter in units of nuclear radius RA | |
Double_t | fBmax |
maximum impact parameter in units of nuclear radius RA | |
Double_t | fBfix |
fix impact parameter in units of nuclear radius RA | |
Int_t | fSeed |
parameter to set the random nuber seed More... | |
Double_t | fT |
chemical freeze-out temperature in GeV | |
Double_t | fMuB |
baryon potential | |
Double_t | fMuS |
strangeness potential | |
Double_t | fMuC |
charm potential | |
Double_t | fMuI3 |
isospin potential | |
Double_t | fThFO |
thermal freeze-out temperature T^th in GeV | |
Double_t | fMu_th_pip |
effective chemical potential of positivly charged pions at thermal in GeV | |
Double_t | fTau |
proper time value | |
Double_t | fSigmaTau |
its standart deviation (emission duration) | |
Double_t | fR |
maximal transverse radius | |
Double_t | fYlmax |
maximal longitudinal rapidity | |
Double_t | fUmax |
maximal transverse velocity multiplaed on gamma_r | |
Double_t | frhou2 |
parameter to swich ON/OFF(0) rhou2 | |
Double_t | frhou3 |
parameter to swich ON/OFF(0) rhou3 | |
Double_t | frhou4 |
parameter to swich ON/OFF(0) rhou4 | |
Double_t | fDelta |
momentum asymmetry parameter | |
Double_t | fEpsilon |
coordinate asymmetry parameter | |
Double_t | fv2 |
parameter to swich ON/OFF(0) epsilon2 fluctuations | |
Double_t | fv3 |
parameter to swich ON/OFF(0) epsilon3 fluctuations | |
Int_t | fIfDeltaEpsilon |
flag to specify fDelta and fEpsilon values(=0 user's ones, >=1 parametrized) | |
Int_t | fDecay |
flag to switch on/off hadron decays (=0 decays off, >=1 decays on), (default: 1) | |
Double_t | fWeakDecay |
flag to switch on/off weak hadron decays <0: decays off, >0: decays on, (default: 0) | |
Int_t | fPythDecay |
Flag to choose how to decay resonances in high-pt part, fPythDecay: 0 by PYTHIA decayer, 1 by FASTMC decayer(mstj(21)=0) | |
Int_t | fEtaType |
flag to choose rapidity distribution More... | |
Int_t | fTMuType |
flag to use calculated chemical freeze-out temperature, baryon potential and strangeness potential as a function of fSqrtS | |
Double_t | fCorrS |
flag and value to include strangeness supression factor | |
Int_t | fCharmProd |
flag to include statistical charm production | |
Double_t | fCorrC |
flag and value to include charmness supression factor | |
Int_t | fNhsel |
flag to switch on/off jet and hydro-state production More... | |
Int_t | fPyhist |
Suppress PYTHIA particle history (=1 only final state particles from hard part; =0 include full particle history) | |
Int_t | fIshad |
flag to switch on/off impact parameter dependent nuclear shadowing for gluons and light sea quarks (u,d,s) More... | |
Double_t | fPtmin |
minimal transverse momentum transfer p_T of hard parton-parton scatterings in GeV (the PYTHIA parameter ckin(3)=fPtmin) | |
Double_t | fT0 |
initial temperature (in GeV) of QGP for central Pb+Pb collisions at mid-rapidity More... | |
Double_t | fTau0 |
proper QGP formation time in fm/c (0.01<fTau0<10) | |
Int_t | fNf |
number of active quark flavours N_f in QGP fNf=0, 1,2 or 3 | |
Int_t | fIenglu |
flag to fix type of in-medium partonic energy loss More... | |
Int_t | fIanglu |
flag to fix type of angular distribution of in-medium emitted gluons More... | |
Char_t | partDat [256] = "" |
path to the particle data file | |
Char_t | tabDecay [256] = "" |
path to the particle decay table | |
Bool_t | fPythiaTune = false |
Flag to use castom PYTHIA tune. | |
Char_t | pythiaTune [256] = "" |
path to the Pythia tune file | |
Bool_t | doPrintInfo = true |
Flag to turn ON/OFF additional info. | |
Bool_t | allowEmptyEvent = false |
Allow or not empty events. | |
Structure of input parameters.
Int_t InitialParamsHydjet_t::fEtaType |
flag to choose rapidity distribution
if fEtaType<=0, then uniform rapidity distribution in [-fYlmax,fYlmax] if fEtaType>0, then Gaussian with dispertion = fYlmax
Int_t InitialParamsHydjet_t::fIanglu |
flag to fix type of angular distribution of in-medium emitted gluons
0: small-angular, 1: wide-angular, 2:collinear (default: 0).
Int_t InitialParamsHydjet_t::fIenglu |
flag to fix type of in-medium partonic energy loss
0: radiative and collisional loss, 1: radiative loss only, 2: collisional loss only (default: 0);
Int_t InitialParamsHydjet_t::fIfb |
flag of type of centrality generation
=0 is fixed by fBfix, not 0 impact parameter is generated in each event between fBfmin and fBmax according with Glauber model (f-la 30)
Int_t InitialParamsHydjet_t::fIshad |
flag to switch on/off impact parameter dependent nuclear shadowing for gluons and light sea quarks (u,d,s)
0: shadowing off, 1: shadowing on for fAw=207, 197, 110, 40, default: 1
Int_t InitialParamsHydjet_t::fNhsel |
flag to switch on/off jet and hydro-state production
0: jet production off and hydro on, 1: jet production on and jet quenching off and hydro on, 2: jet production on and jet quenching on and hydro on, 3: jet production on and jet quenching off and hydro off, 4: jet production on and jet quenching on and hydro off
Int_t InitialParamsHydjet_t::fSeed |
parameter to set the random nuber seed
=0 the current time is used to set the random generator seed, !=0 the value fSeed is used to set the random generator seed and then the state of random number generator in PYTHIA MRPY(1)=fSeed
Double_t InitialParamsHydjet_t::fT0 |
initial temperature (in GeV) of QGP for central Pb+Pb collisions at mid-rapidity
initial temperature for other centralities and atomic numbers will be calculated automatically (allowed range is 0.2<fT0<2)