A_4 model for the quark mass matrices
High Energy Physics - Phenomenology
2008-11-26 v3
Abstract
We propose a model for the quark masses and mixings based on an A_4 family symmetry. Three scalar SU(2) doublets form a triplet of A_4. The three left-handed-quark SU(2) doublets are also united in a triplet of A_4. The right-handed quarks are singlets of A_4. The A_4-symmetric scalar potential leads to a vacuum in which two of the three scalar SU(2) doublets have expectation values with equal moduli. Our model makes an excellent fit of the observed |V_ub/V_cb|. The symmetry CP is respected in the charged gauge interactions of the quarks.
Keywords
Cite
@article{arxiv.0711.0670,
title = {A_4 model for the quark mass matrices},
author = {L. Lavoura and H. Kuhbock},
journal= {arXiv preprint arXiv:0711.0670},
year = {2008}
}
Comments
11 pages, 2 figures, clarifications and reference added, v3: version to appear in EPJC