Bubble-nucleation rates for cosmological phase transitions
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
We estimate bubble-nucleation rates for cosmological phase transitions. We concentrate on the evaluation of the pre-exponential factor, for which we give approximate analytical expressions. Our approach relies on the use of a real coarse-grained potential. We show how the coarse-graining scale can be determined in the studies of high-temperature phase transitions. We discuss the metastability bound on the Higgs-boson mass and the electroweak phase transition. We find that the saddle-point approximation is reliable in the first case and breaks down in the second case.
Cite
@article{arxiv.hep-ph/9904357,
title = {Bubble-nucleation rates for cosmological phase transitions},
author = {Alessandro Strumia and Nikolaos Tetradis},
journal= {arXiv preprint arXiv:hep-ph/9904357},
year = {2009}
}
Comments
8 pages, 2 fig.s. Final version