Group-theoretic restrictions on generation of CP-violation in multi-Higgs-doublet models
High Energy Physics - Phenomenology
2016-02-17 v1
Abstract
It has been known since decades that imposing a symmetry group G on the scalar sector of multi-Higgs-doublet models has consequences for CP-violation. In all examples of two- and three-Higgs-doublet models equipped with symmetries, one observes the following intriguing property: if G prevents explicit CP-violation (CPV), at least in the neutral Higgs sector, then it also prevents spontaneous CPV, and if G allows explicit CPV, then it allows for spontaneous CPV. One is led to conjecture that this is a general phenomenon. In this paper, we prove this conjecture for any rephasing symmetry group G and any number of doublets.
Keywords
Cite
@article{arxiv.1511.02764,
title = {Group-theoretic restrictions on generation of CP-violation in multi-Higgs-doublet models},
author = {G. C. Branco and I. P. Ivanov},
journal= {arXiv preprint arXiv:1511.02764},
year = {2016}
}
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16 pages