arXiv:1710.04433·v2·High Energy Physics — Phenomenology
Three-Higgs-doublet model under A4 symmetry implies alignment
Soumita Pramanick (HRI, Allahabad and Univ. of Calcutta)🇮🇳 · Amitava Raychaudhuri (Univ. of Calcutta)🇮🇳
Abstract
A model with three scalar doublets can be conveniently accommodated within an A4 symmetric framework. The A4 symmetry permits only a restricted form for the scalar potential. We show that for the global minima of this potential alignment follows as a natural consequence. We also verify that in every case positivity and unitarity constraints are satisfactorily met.
Comments: 17 pages, v2: References added, some changes in text, to appear in JHEP