Is there a monopole problem?
高能物理 - 唯象学
2009-10-28 v2 天体物理学
摘要
We investigate the high temperature behavior of SU(5) in its minimal version. We show that there exists a range of parameters of the Higgs potential for which the symmetry remains broken at high temperature, thus avoiding the phase transition that gives rise to the overproduction of monopoles . We also show that in such scenario the thermal production of monopoles can be suppressed in a wide range of parameters, keeping their number density below the cosmological limits.
引用
@article{arxiv.hep-ph/9507230,
title = {Is there a monopole problem?},
author = {Gia Dvali and Alejandra Melfo and Goran Senjanovic},
journal= {arXiv preprint arXiv:hep-ph/9507230},
year = {2009}
}
备注
Latex, 12 pages, revised version as appeared in Physical Review Letters. Minor corrections, comments and two references added