Flavour-alignment in an $S_3$-symmetric Higgs sector and its RG-behaviour
Abstract
A three Higgs-doublet model admitting an -symmetry can predict the observed pattern of the quark masses and their mixings. However the same symmetry also introduces potential flavour-changing neutral currents at the tree level. We assume in this work that the scalar potential contains appropriate \emph{soft} -breaking terms in order to keep the choices of the scalar masses flexible. We identify the parameters in the Yukawa Lagrangian in the quark sector responsible for such FCNCs and constrain them using data from some of the flavour physics observables like meson-decays and meson-mixings. We also validate the corresponding model parameter space with renormalisation group (RG) evaluation.
Keywords
Cite
@article{arxiv.1903.09388,
title = {Flavour-alignment in an $S_3$-symmetric Higgs sector and its RG-behaviour},
author = {Nabarun Chakrabarty and Indrani Chakraborty},
journal= {arXiv preprint arXiv:1903.09388},
year = {2022}
}
Comments
18 pages + references, 2 captioned figures, 2 tables, Version accepted for publication in Chinese Physics C