Entropy production in the early-cosmology pionic phase
Nuclear Theory
2016-07-20 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
We point out that in the early universe, for temperatures in the approximate interval 175-80 MeV (after the quark-gluon plasma), pions carried a large share of the entropy and supported the largest inhomogeneities. Thus, we examine the production of entropy in a pion gas, particularizing to inhomogeneities of the temperature, for which we benefit from the known thermal conductivity. We finally put that entropy produced in relaxing such thermal inhomogeneities in the broad context of this relatively unexplored phase of early-universe cosmology.
Cite
@article{arxiv.1507.06386,
title = {Entropy production in the early-cosmology pionic phase},
author = {Antonio Dobado and Felipe J. Llanes-Estrada and David Rodriguez-Fernandez},
journal= {arXiv preprint arXiv:1507.06386},
year = {2016}
}
Comments
10 pages, 10 figures,