May 31, 2022 to June 1, 2022
America/Bogota timezone

A dark matter connection in a flavored axion model

Jun 1, 2022, 9:45 AM
45m

Speaker

Eduardo Rojas

Description

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. In the model We found a pseudoscalar Nambu-Goldstone which could be a dark matter candidate.

Primary authors

Eduardo Rojas Juan Carlos Montenegro Roberto Martinez (Universidad Nacional de Colombia) Yithsbey Giraldo Úsuga (Universidad de Nariño)

Presentation materials