Flavon stabilization in models with discrete flavor symmetry

Chigusa, So (Department of Physics, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan) ; Kasuya, Shinta (Department of Mathematics and Physics, Kanagawa University, Kanagawa, 259-1293, Japan) ; Nakayama, Kazunori (Department of Physics, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan) (Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba, 277-8583, Japan)

29 November 2018

Abstract: We propose a simple mechanism for stabilizing flavon fields with aligned vacuum structure in models with discrete flavor symmetry. The basic idea is that flavons are stabilized by the balance between the negative soft mass and non-renormalizable terms in the potential. We explicitly discuss how our mechanism works in A4 flavor model, and show that the field content is significantly simplified. It also works as a natural solution to the cosmological domain wall problem.


Published in: Physics letters B 788 (2019) 494-499
Published by: Elsevier
DOI: 10.1016/j.physletb.2018.11.051
License: CC-BY-3.0



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