Impact of momentum anisotropy and turbulent chromo-fields on thermal particle production in quark-gluon plasma medium

Abstract

Momentum anisotropy present during the hydrodynamic evolution of Quark-Gluon Plasma (QGP) in RHIC may lead to chromo-Weibel instability and turbulent chromo-fields.The dynamics of the quark and gluon momentum distributions in this case is governed by an effective diffusive Vlasov equation (linearized). The solution of this linearized transport equation for the modified momentum distribution functions lead to the mathematical form of non-equilibrium momentum distribution functions of quarks/antiquarks and gluons. The modification to these distributions encode the physics of turbulent color fields and momentum anisotropy. In the present manuscript, we employ these distribution functions to to estimate thermal dilepton production rate in the QGP medium. The production rate is seen to have appreciable sensitivity to the strength of the anisotropy.

v3: version accepted in Euro. J. Phys. C

References in corpus (27)

• The QCD equation of state with dynamical quarks
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• The QCD transition temperature: results with physical masses in the continuum limit II.
• The QCD Equation of State with almost Physical Quark Masses
• Quasi-Particle Theory of Shear and Bulk Viscosities of Hadronic Matter
• Influence of the shear viscosity of the quark-gluon plasma on elliptic flow in ultrarelativistic heavy-ion collisions
• Susceptibilities and speed of sound from PNJL model
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• A study of vorticity formation in high energy nuclear collisions
• Toward a solution to the $R_{AA}$ and $v_2$ puzzle for heavy quarks
• Anomalous Viscosity of an Expanding Quark-Gluon Plasma
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• Universality far from equilibrium: From superfluid Bose gases to heavy-ion collisions
• A Family of Equations of State Based on Lattice QCD: Impact on Flow in Ultrarelativistic Heavy-Ion Collisions
• Momentum Broadening in an Anisotropic Plasma
• Anomalous Transport Processes in Anisotropically Expanding Quark-Gluon Plasmas
• Color Instabilities in the Quark-Gluon Plasma
• Effective degrees of freedom and gluon condensation in the high temperature deconfined phase
• Wakes in the quark-gluon plasma
• Quasi-particle model for lattice QCD: quark-gluon plasma in heavy ion collisions
• Collective excitations of hot QCD medium in a quasi-particle description
• Thermal photons in QGP and non-ideal effects
• Plasmons in Anisotropic Quark-Gluon Plasma
• Impact of momentum-space anisotropy on heavy quark dynamics in a QGP medium
• Radiative energy loss in an anisotropic Quark-Gluon-Plasma
• Anomalous Transport Processes in Turbulent non-Abelian Plasmas
• Heavy Ion Collision evolution modeling with ECHO-QGP

Cited by in corpus (8)

• Transport coefficients of a hot QCD medium and their relative significance in heavy-ion collisions
• Collective excitations of a hot anisotropic QCD medium with Bhatnagar-Gross-Krook collisional kernel within an effective description
• Heavy quark transport in an anisotropic hot QCD medium: Collisional and Radiative processes
• Covariant formulation of gluon self-energy in presence of ellipsoidal anisotropy
• Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields
• Second order hydrodynamics based on effective kinetic theory and electromagnetic signals from QGP
• Hydrodynamical attractor and thermal particle production in heavy-ion collision
• Collective excitations in the hot QCD medium and the propagation of Heavy Quarks