Flavored axions and the flavor problem

Giraldo, Yithsbey Y Martínez, Roberto Y Rojas, Eduardo Y Salazar, Juan Carlos (2022) Flavored axions and the flavor problem. The European Physical Journal C, 82 (12). pp. 1131-1. ISSN 1434-6052

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Resumen

A Peccei-Quinn (PQ) symmetry is proposed, in order to generate in the Standard Model (SM) quark sector a realistic mass matrix ansatz with five texture-zeros. Limiting our analysis to Hermitian mass matrices we show that this requires a minimum of 4 Higgs doublets. This model allows assigning values close to 1 for several Yukawa couplings, giving insight into the origin of the mass scales in the SM. Since the PQ charges are non-universal the model features Flavor-Changing Neutral Currents (FCNC) at the tree level. From the analytical expressions for the FCNC we report the allowed region in the parameter space obtained from the measurements of branching ratios of semileptonic meson decays.

Tipo de Elemento:	Artículo
Palabras Clave:	11.30.Hv Flavor symmetries – 12.60.-i models beyond the standard models – 14.80.Va Axions – 14.60.St Non-standard-model particles Higgs bosons neutrinos – 14.80.-j Other particles (including hypothetical)
Asunto:	Q Ciencias > QC Physics
Division:	Facultad de Ciencias Exactas y Naturales > Programa de Física > Productividad
Depósito de Usuario:	Prof. Eduardo Rojas
Fecha Deposito:	26 Dec 2022 00:38
Ultima Modificación:	26 Dec 2022 00:38
URI:	http://sired.udenar.edu.co/id/eprint/7580

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