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Flavored axions and the textures of the quark and lepton mass matrices

Rojas, Eduardo Y Giraldo, Yithsbey Y Martínez, Roberto Y Salazar, Juan Carlos (2022) Flavored axions and the textures of the quark and lepton mass matrices. In: 4th Colombian Workshop on Flavor Physics, 15 - 17 junio de 2022, Ibagué, Colombia. (Unpublished)

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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: Conferencia o Taller artículo (Lecture)
Asunto: Q Ciencias > QC Physics
Division: Facultad de Ciencias Exactas y Naturales > Programa de Física > Eventos
Depósito de Usuario: Prof. Eduardo Rojas
Fecha Deposito: 11 Jul 2022 21:14
Ultima Modificación: 11 Jul 2022 21:14

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