Pressure of the Standard Model at High Temperatures
High Energy Physics - Phenomenology
2011-01-13 v2
Abstract
We compute the pressure of the standard model at high temperatures in the symmetric phase to three loops, or to O(g^5) in all coupling constants. We find that the terms of the perturbative expansion in the SU(2) + Higgs sector decrease monotonically with increasing order, but the large values of the strong coupling constant g_s and the Yukawa coupling of the top quark g_Y make the expansion in the full theory converge more slowly. The final result is observed to be about 10% smaller than the ideal gas pressure commonly used in cosmological calculations.
Keywords
Cite
@article{arxiv.hep-ph/0510375,
title = {Pressure of the Standard Model at High Temperatures},
author = {A. Gynther and M. Vepsalainen},
journal= {arXiv preprint arXiv:hep-ph/0510375},
year = {2011}
}
Comments
30 pages, 4 figures. v2: one reference added, minor revisions, accepted for publication in JHEP