2012/10/30 by Waseem Bashir, Bashir, Waseem, Saeed Uddin +3
Materials Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Material Dynamics and Properties #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.1210.7990
openalex publication_date 2012/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the non-equilibrium properties of a dynamical fluid composed of quasi-particles whose mass is temperature and charge chemical potential dependent, in kinetic theory under the relaxation time approximation. In particular we calculate the scaling behaviour of bulk viscosity `ζ' near the QCD chiral phase transition in the 3d \it O(2) universality class. It is found that the bulk viscosity `ζ' does not show a divergent behaviour near the QCD chiral phase transition. This scaling behaviour of `ζ' prevails in the presence of Gold-stone modes that arise due to the explicit breaking of continuous \it O(4) symmetry. On contrary these modes have a significant effect on the scaling behaviour of specific heat CV which diverges at the critical temperature TC.