Shear and bulk viscosities for pure glue matter

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.035204· OSTI ID:21499526

Khvorostukhin, A S ^[1]; Toneev, V D ^[1]; Voskresensky, D N ^[1]

---

1. GSI, Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstrasse 1, D-64291 Darmstadt (Germany)

Shear {eta} and bulk {zeta} viscosities are calculated in a quasiparticle model within a relaxation-time approximation for pure gluon matter. Below T{sub c}, the confined sector is described within a quasiparticle glueball model. The constructed equation of state reproduces the first-order phase transition for the glue matter. It is shown that with this equation of state, it is possible to describe the temperature dependence of the shear viscosity to entropy ratio {eta}/s and the bulk viscosity to entropy ratio {zeta}/s in reasonable agreement with available lattice data, but absolute values of the {zeta}/s ratio underestimate the upper limits of this ratio in the lattice measurements typically by an order of magnitude.

• OSTI ID: 21499526
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevC.83.035204; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
COMPUTERIZED SIMULATION
ENTROPY
EQUATIONS OF STATE
GLUEBALLS
GLUONS
PHASE TRANSFORMATIONS
RELAXATION TIME
TEMPERATURE DEPENDENCE
VISCOSITY
BOSONS
CALCULATION METHODS
EQUATIONS
PHYSICAL PROPERTIES
SIMULATION
THERMODYNAMIC PROPERTIES