Evading death by vacuum
High Energy Physics - Phenomenology
2013-11-07 v2
Abstract
In the Standard Model, the Higgs potential allows only one minimum at tree-level. But the open possibility that there might be two scalar doublets enriches the vacuum structure, allowing for the risk that we might now be in a metastable state, which we dub the panic vacuum. Current experiments at the LHC are probing the Higgs particle predicted as a result of the spontaneous symmetry breaking. Remarkably, in the two Higgs model with a softly broken U(1) symmetry, the LHC experiments already preclude panic vacuum solutions.
Cite
@article{arxiv.1211.6119,
title = {Evading death by vacuum},
author = {A. Barroso and P. M. Ferreira and I. P. Ivanov and Rui Santos and João P. Silva},
journal= {arXiv preprint arXiv:1211.6119},
year = {2013}
}
Comments
7 pages, 4 figures