https://doi.org/10.1140/epjc/s10052-023-11463-5
Regular Article - Theoretical Physics
A viable 
3HDM theory of quark mass matrices
CFTP, Departamento de Física, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, 1049, Lisbon, Portugal
c
jorge.romao@tecnico.ulisboa.pt
Received:
27
January
2023
Accepted:
31
March
2023
Published online:
12
April
2023
It is known that a three Higgs doublet model (3HDM) symmetric under an exact symmetry is not compatible with nonzero quark masses and/or non-block-diagonal CKM matrix. We show that a 3HDM with softly broken terms in the scalar potential does allow for a fit of quark mass matrices. Moreover, the result is consistent with 
and the 
signal. We also checked numerically that, for each point that passes all the constraints, the minimum is a global minimum of the potential.
© The Author(s) 2023
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