A Nonperturbative Measurement of the Broken Phase Sphaleron Rate
High Energy Physics - Phenomenology
2009-10-31 v2 High Energy Physics - Lattice
Abstract
We develop a method to compute the sphaleron rate in the electroweak broken phase nonperturbatively. The rate is somewhat slower than a perturbative estimate. In SU(2) X U(1) Higgs theory at the physical value of Theta_W, and assuming that the latent heat of the phase transition reheats the universe to the equilibrium temperature, baryon number erasure after the phase transition is prevented only when lambda/g^2 <= 0.036.
Keywords
Cite
@article{arxiv.hep-ph/9801204,
title = {A Nonperturbative Measurement of the Broken Phase Sphaleron Rate},
author = {Guy D. Moore},
journal= {arXiv preprint arXiv:hep-ph/9801204},
year = {2009}
}
Comments
12 pages, 2 figures included with psfig. A few typos fixed, some points clarified