Quarkonium in a bulk viscous QGP medium

Abstract

The non-equilibrium properties of quark-gluon plasma (QGP) have been a topic of intensive research. In this contribution, we explore the nature of heavy quarkonia immersed in a QGP with bulk viscosity. We incorporate the bulk viscous effect through the deformation of the distribution functions of thermal quarks and gluons, with which the color dielectric permittivity can be computed. We use the color dielectric permittivity to compute the heavy quark potential inside a bulk viscous plasma and solve the Schrödinger equation using the potential to obtain the physical properties such as binding energies and decay widths. We discuss the effect of the bulk viscous correction on the quarkonium properties and the melting temperatures.

arXiv comment5 pages, 4 figures, 1 table, 19th International Conference on Hadron Spectroscopy and Structure (HADRON 2021), v2, published version

References in corpus (9)

• Static quark-antiquark pairs at finite temperature
• The importance of the bulk viscosity of QCD in ultrarelativistic heavy-ion collisions
• Universal properties of bulk viscosity near the QCD phase transition
• Bulk viscosity of QCD matter near the critical temperature
• Bulk viscosity and spectral functions in QCD
• Improved Gauss law model and in-medium heavy quarkonium at finite density and velocity
• Phenomenological Consequences of Enhanced Bulk Viscosity Near the QCD Critical Point
• Bulk viscous corrections to screening and damping in QCD at high temperatures
• Heavy quarkonium moving in hot and dense deconfined nuclear matter