Strong electroweak phase transition from Supersymmetric Custodial Triplets
Abstract
The Supersymmetric Custodial Triplet Model, a supersymmetric generalization of the Georgi-Machacek model, has proven to be an interesting modification of the MSSM. It extends the MSSM Higgs sector by three extra SU(2)L triplets in such a way that approximate custodial invariance is preserved and rho-parameter deviations are kept under control. By means of a sizeable triplet contribution to electroweak breaking the model is able to generate a barrier at tree level between the false vacuum and the electroweak one. This will result in a strong first order phase transition for an important region of the parameter space. We also look at the gravitational waves that could be generated as a result of the phase transition and show how future interferometers could be used as a probe of the model.
Cite
@article{arxiv.1602.01351,
title = {Strong electroweak phase transition from Supersymmetric Custodial Triplets},
author = {Mateo Garcia-Pepin and Mariano Quiros},
journal= {arXiv preprint arXiv:1602.01351},
year = {2016}
}
Comments
18 pages, 8 figures