We take up again the study of the mass spectrum of the quark sector in a model with gauge symmetry SU(3)câŠ - SU(3)LâŠ - U(1)X(331). In a special type II-like 3-3-1 model, we obtain specific zero-texture mass matrices for the quarks which predict four massless quarks (u,c,d,s) and two massive quarks (b,t) at the electroweak scale (∼GeV). By considering the mixing between the standard model quarks and new exotic quarks at large scales predicted by the model, we find that a third quark (associated to the charm quark) acquires a mass. The remaining light quarks (u,d,s) get small masses (∼MeV) via radiative corrections. © 2013 American Physical Society.
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Publication status||Published - 12 Apr 2013|
Cárcamo Hernández, A. E., Martínez, R., & Ochoa, F. (2013). Radiative seesaw-type mechanism of quark masses in SU(3)<inf>C</inf>âŠ - SU(3)<inf>L</inf>âŠ - U(1)<inf>X</inf> Physical Review D - Particles, Fields, Gravitation and Cosmology. https://doi.org/10.1103/PhysRevD.87.075009