Bulk viscosity of strange quark matter: Urca versus non-leptonic processes
Astrophysics
2008-11-26 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
A general formalism for calculating the bulk viscosity of strange quark matter is developed. Contrary to the common belief that the non-leptonic processes alone give the dominant contribution to the bulk viscosity, the inclusion of the Urca processes is shown to play an important role at intermediate densities when the characteristic r-mode oscillation frequencies are not too high. The interplay of non-leptonic and Urca processes is analyzed in detail
Keywords
Cite
@article{arxiv.astro-ph/0703016,
title = {Bulk viscosity of strange quark matter: Urca versus non-leptonic processes},
author = {Basil A. Sa'd and Igor A. Shovkovy and Dirk H. Rischke},
journal= {arXiv preprint arXiv:astro-ph/0703016},
year = {2008}
}
Comments
9 pages, 4 figures, v2: revised figures, no change in results