Metastability bounds on the two Higgs doublet model
High Energy Physics - Phenomenology
2015-06-15 v1
Abstract
In the two Higgs doublet model, there is the possibility that the vacuum where the universe resides in is metastable. We present the tree-level bounds on the scalar potential parameters which have to be obeyed to prevent that situation. Analytical expressions for those bounds are shown for the most used potential, that with a softly broken symmetry. The impact of those bounds on the model's phenomenology is discussed in detail, as well as the importance of the current Large Hadron Collider results in determining whether the vacuum we live in is or is not stable. We demonstrate how the vacuum stability bounds can be obtained for the most generic CP-conserving potential, and provide a simple method to implement them.
Cite
@article{arxiv.1303.5098,
title = {Metastability bounds on the two Higgs doublet model},
author = {A. Barroso and P. M. Ferreira and I. P. Ivanov and Rui Santos},
journal= {arXiv preprint arXiv:1303.5098},
year = {2015}
}
Comments
22 pages, 10 figures