Flavor-alignment in an -symmetric Higgs sector and its RG-behavior

Nabarun Chakrabarty (Department of Physics, Indian Institute of Technology, India) ; Indrani Chakraborty (Department of Physics, Indian Institute of Technology, India)

A three Higgs-doublet model exhibiting $S_3$ -symmetry can predict the observed pattern of quark masses and their mixings. However, the same symmetry also introduces potential flavor-changing neutral currents (FCNCs) at the tree level. In this study, we assume that the scalar potential contains appropriate soft $S_3$ -breaking terms to maintain flexible choices of scalar masses. We identify the parameters in the Yukawa Lagrangian of the quark sector responsible for such FCNCs and constrain them using data from flavor physics observables, such as meson-decays and meson-mixings. We also validate the corresponding model parameter space via renormalization group evaluation.

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Published on:
01 December 2022
Publisher:
IOP
Published in:
Chinese Physics C , Volume 46 (2022)
Issue 12
Article ID: 123102
DOI:
https://doi.org/10.1088/1674-1137/ac8789
Copyrights:
© 2022 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
Licence:
CC-BY-3.0

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