Phase conversion in a weakly first-order quark-hadron transition

Details Phase conversion in a weakly first-order quark-hadron transition Phase conversion in a weakly first-order quark-hadron transition

2008-11-26

arxiv.org/abs/0811.4385v2

Phys.Rev.D79:034012,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 10 figures; v2: 1 reference added, minor modifications, matches published version

Scientific paper

10.1103/PhysRevD.79.034012

We investigate the process of phase conversion in a thermally-driven {\it weakly} first-order quark-hadron transition. This scenario is physically appealing even if the nature of this transition in equilibrium proves to be a smooth crossover for vanishing baryonic chemical potential. We construct an effective potential by combining the equation of state obtained within Lattice QCD for the partonic sector with that of a gas of resonances in the hadronic phase, and present numerical results on bubble profiles, nucleation rates and time evolution, including the effects from reheating on the dynamics for different expansion scenarios. Our findings confirm the standard picture of a cosmological first-order transition, in which the process of phase conversion is entirely dominated by nucleation, also in the case of a weakly first-order transition. On the other hand, we show that, even for expansion rates much lower than those expected in high-energy heavy ion collisions, nucleation is very unlikely, indicating that the main mechanism of phase conversion is spinodal decomposition. Our results are compared to those obtained for a strongly first-order transition, as the one provided by the MIT bag model.

Affiliated with

Also associated with

No associations

Rating

Phase conversion in a weakly first-order quark-hadron transition 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 Phase conversion in a weakly first-order quark-hadron transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase conversion in a weakly first-order quark-hadron transition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-275016