Electroweak Phase Transition in the munuSSM
High Energy Physics - Phenomenology
2015-03-14 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
An extension of the MSSM called the munuSSM does not allow a conventional thermal leptogenesis scenario because of the low scale seesaw that it utilizes. Hence, we investigate the possibility of electroweak baryogenesis. Specifically, we identify a parameter region for which the electroweak phase transition is sufficiently strongly first order to realize electroweak baryogenesis. In addition to transitions that are similar to those in the NMSSM, we find a novel class of phase transitions in which there is a rotation in the singlet vector space.
Cite
@article{arxiv.1004.0942,
title = {Electroweak Phase Transition in the munuSSM},
author = {Daniel J. H. Chung and Andrew J. Long},
journal= {arXiv preprint arXiv:1004.0942},
year = {2015}
}
Comments
36 pages, 10 figures