Quarks Production in the Quark-Gluon Plasma Created in Relativistic Heavy Ion Collisions

Abstract

In this article we report on our results about quark production and chemical equilibration of quark-gluon plasma. Our initial condition corresponds to a classic Yang-Mills spectrum, in which only gluon degrees of freedom are considered; the initial condition is then evolved to a quark-gluon plasma by means of relativistic transport theory with inelastic processes which permit the conversion of gluons to $q\bar{q}$ pairs. We then compare our results to the ones obtained with a standard Glauber model initialization. We find that regardless of the initial condition the final stage of the system contains an abundant percentage of $q\bar{q}$ pairs; moreover spanning the possible coupling from weak to strong we find that unless the coupling is unrealistically small, both production rate and final percentage of fermions is quite large.

arXiv commentMinor changes. Published on Nuclear Physics A

References in corpus (37)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Computing Quark and Gluon Distribution Functions for Very Large Nuclei
• Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
• The Color Glass Condensate
• Green's Functions in the Color Field of a Large Nucleus
• Elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV
• Fluctuating Glasma initial conditions and flow in heavy ion collisions
• Bottom-up thermalization in heavy ion collisions
• Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
• On the Strongly-Interacting Low-Viscosity Matter Created in Relativistic Nuclear Collisions
• Has the QCD Critical Point been Signaled by Observations at RHIC ?
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Parton-Hadron-String Dynamics at Relativistic Collider Energies
• Bose--Einstein Condensation and Thermalization of the Quark Gluon Plasma
• Perturbative QCD Calculations of Elliptic Flow and Shear Viscosity in Au+Au Collisions at $\sqrt{s_{NN}}=200$ GeV
• Shear Viscosity of a strongly interacting system: Green-Kubo vs. Chapman-Enskog and Relaxation Time Approximation
• Recent thermodynamic results from lattice QCD analyzed within a quasi-particle model
• Color Glass Condensate and Glasma
• Scalings of Elliptic Flow for a Fluid at Finite Shear Viscosity
• Elliptic flow of gluon matter in ultrarelativistic heavy-ion collisions
• Gluon Transport Equation in the Small Angle Approximation and the Onset of Bose-Einstein Condensation
• Quark production, Bose-Einstein condensates and thermalization of the quark-gluon plasma
• Chemical thermalization in relativistic heavy ion collisions
• Thermalization, Isotropization and Elliptic Flow from Nonequilibrium Initial Conditions with a Saturation Scale
• Elliptic Flow from Non-equilibrium Initial Condition with a Saturation Scale
• Multiplicity distributions in p+p, p+A and A+A collisions from Yang-Mills dynamics
• Thermalization of a color glass condensate and review of the "Bottom-Up" scenario
• Quark-to-gluon composition of the quark-gluon plasma in relativistic heavy-ion collisions
• Thermalization and Bose-Einstein Condensation in Overpopulated Glasma
• Relativistic Boltzmann transport approach with Bose-Einstein statistics and the onset of gluon condensation
• Equilibration of anisotropic quark-gluon plasma produced by decays of color flux tubes
• Elliptic Flow and Shear Viscosity within a Transport Approach from RHIC to LHC Energy
• Shear viscosity and chemical equilibration of the QGP
• Chemical composition of the decaying glasma
• The Extraordinary Glow

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