The hot non-perturbative gluon plasma is an almost ideal colored liquid

Details The hot non-perturbative gluon plasma is an almost ideal colored liquid The hot non-perturbative gluon plasma is an almost ideal colored liquid

2005-02-15

arxiv.org/abs/hep-ph/0502138v2

Phys.Rev.Lett. 94 (2005) 172301

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 eps figures, published version

Scientific paper

10.1103/PhysRevLett.94.172301

We study properties of a gluon plasma above the critical temperature $T_c$ in a generalized quasi-particle approach with a Lorentz spectral function. The model parameters are determined by a fit of the entropy $s$ to lattice QCD data. The effective degrees of freedom are found to be rather heavy and of a sizeable width. With the spectral width being closely related to the interaction rate, we find a large effective cross section, which is comparable to the typical distance squared of the quasiparticles. This suggests that the system should be viewed as a liquid as also indicated by an estimate of the plasma parameter $\Gamma$. Furthermore, within the quasiparticle approach we find a very low viscosity to entropy ratio, $\eta/s \sim 0.2$ for $T > 1.05 T_c$, supporting the recent conjecture of an almost ideal quark-gluon liquid seen at RHIC.

Affiliated with

Also associated with

No associations

Rating

The hot non-perturbative gluon plasma is an almost ideal colored liquid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The hot non-perturbative gluon plasma is an almost ideal colored liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The hot non-perturbative gluon plasma is an almost ideal colored liquid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-242716