Triple-quark elastic scatterings and thermalization

Abstract

Triple-quark elastic scattering amplitudes from perturbative QCD are first calculated and then used in a transport equation to study the thermalization of quark matter. By examining momentum isotropy to which the transport equation leads, we can determine thermalization time and offer an initial thermal quark distribution function. With an anisotropic initial quark distribution, which is relevant to quark matter initially created in a central Au-Au collision at \sqrt {s_{NN}}=200 GeV, the transport equation gives a time of the order of 1.8 fm/c for quark matter itself to thermalize by the triple-quark scatterings.

19 pages, 4 figures, 1 table, LaTex, define u12,u13,u21,u23,u31,u32

References in corpus (25)

• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• Reaction Operator Approach to Non-Abelian Energy Loss
• Elliptic Flow of Identified Hadrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV
• Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
• Saturation of Elliptic Flow and the Transport Opacity of the Gluon Plasma at RHIC
• Identified Particle Elliptic Flow in Au+Au Collisions at $\sqrt{s_{{}_{NN}}}=130$ GeV}
• pQCD-based Approach to Parton Production and Equilibration in High-Energy Nuclear Collisions
• Is early thermalization achieved only near midrapidity at RHIC ?
• Azimuthal anisotropy and correlations in the hard scattering regime at RHIC
• J/Psi Suppression in an Equilibrating Parton Plasma
• Open Charm Production in an Equilibrating Parton Plasma
• Transverse Expansion and High $p_T$ Azimuthal Asymmetry at RHIC
• Screening of initial parton production in ultrarelativistic heavy-ion collisions
• Centrality dependence of multiplicities in ultrarelativistic nuclear collisions
• Partonic effects on higher-order anisotropic flows in relativistic heavy-ion collisions
• Parton rescattering and screening in Au+Au collisions at RHIC
• Comparison of space-time evolutions of hot/dense matter in $\sqrt{s_{NN}}$=17 and 130 GeV relativistic heavy ion collisions based on a hydrodynamical model
• Equation of state and collision rate tests of parton cascade models
• Elliptic Flow Measurements with the PHENIX Detector
• Minijet Initial Conditions For Non-Equilibrium Parton Evolution at RHIC and LHC
• Elliptic flow in Au+Au collisions at $\sqrt{s_{{}_{NN}}}$ = 130 GeV
• Dependence of hadron spectra on decoupling temperature and resonance contributions
• Results of the Hydrodynamics Approach to Heavy Ion Collisions
• Transverse spectra of hadrons at RHIC

Cited by in corpus (8)

• Dilepton production from a viscous QGP
• qqqbar to qqqbar and qqbarqbar to qqbarqbar Elastic Scatterings and Thermalization of Quark Matter and Antiquark Matter
• Early thermalization of quark-gluon matter with the elastic scattering of ggq and ggqbar
• Thermalization of quark-gluon matter with the elastic scattering of gqq, gqqbar and gqbarqbar
• Triple-Gluon and Triple-Quark Elastic Scatterings and Early Thermalization
• Early thermalization of quark-gluon matter initially created in high-energy nucleus-nucleus collisions
• Early thermalization of quark-gluon matter by elastic 3-to-3 scattering
• Thermalization of quark-gluon matter by 2-to-2 and 3-to-3 elastic scatterings