2010/11/30 by Santosh K. Das, Santosh K Das, Jan-e Alam +1 · 19 citations
Engineering · Physics and Astronomy · #Environmental science #High-Energy Particle Collisions Research #Nuclear reactor physics and engineering #Superconducting Materials and Applications #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.83.114011
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 83(11) (American Physical Society)
openalex publication_date 2011/06/02 · arxiv created 2011/06/14 · arxiv updated 2011/06/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The shear (\ensuremathη) and bulk (\ensuremathζ) viscous coefficients have been evaluated for a gluonic fluid. The elastic, gg\ensuremath→gg and the inelastic, number nonconserving, gg\ensuremath→ggg processes have been considered as the dominant perturbative processes in evaluating the viscous coefficients to entropy density (s) ratios. Recently the processes: gg\ensuremath→ggg has been revisited and a correction to the widely used Gunion-Bertsch (GB) formula has been obtained. The \ensuremathη and \ensuremathζ have been evaluated for gluonic fluid with the formula recently derived. At large \ensuremathαs the value of \ensuremathη/s approaches its lower bound, \ensuremath∼1/4\ensuremathπ.