On the extension of the SM through a scalar quadruplet
High Energy Physics - Phenomenology
2025-02-25 v3
Abstract
We consider the extension of the Standard Model (SM) through a scalar quadruplet with hypercharge either or ; in the first case, we assume invariance of the scalar potential (SP). We write down the unitarity conditions on the SP. We use a partly numerical method to find the bounded-from-below conditions on the SP. We determine the masses of the new scalars of the model. We compute the three- and four-Higgs couplings and compare them to the ones of the SM.
Keywords
Cite
@article{arxiv.2406.01628,
title = {On the extension of the SM through a scalar quadruplet},
author = {Darius Jurčiukonis and Luís Lavoura},
journal= {arXiv preprint arXiv:2406.01628},
year = {2025}
}
Comments
38 pages, 7 figures; v2: added computations of three- and four-Higgs couplings v3: some modifications in the text