Stress tensor and bulk viscosity in relativistic nuclear collisions


Journal Article

We discuss the influence of different initial conditions for the stress tensor and the effect of bulk viscosity on the expansion and cooling of the fireball created in relativistic heavy ion collisions. In particular, we explore the evolution of longitudinal and transverse components of the pressure and the extent of dissipative entropy production in the one-dimensional, boost-invariant hydrodynamic model. We find that a bulk viscosity consistent with recent estimates from lattice QCD further slows the equilibration of the system; however, it does not significantly increase the entropy produced. © 2008 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Fries, RJ; Müller, B; Schäfer, A

Published Date

  • September 26, 2008

Published In

Volume / Issue

  • 78 / 3

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.78.034913

Citation Source

  • Scopus