Effective Aligned 2HDM with a DFSZ-like invisible axion
Abstract
We discuss the possibility of having a non-minimal scalar sector at the weak scale within the framework of invisible axion models. To frame our discussion we consider an extension of the Dine-Fischler-Srednicki-Zhitnitsky invisible axion model with two additional Higgs doublets blind under the Peccei-Quinn symmetry. Due to mixing effects among the scalar fields, it is possible to obtain a rich scalar sector at the weak scale in certain decoupling limits of the theory. In particular, this framework provides an ultraviolet completion of the so-called aligned two-Higgs-doublet model and solves the strong CP problem. The axion properties and the smallness of active neutrino masses are also discussed.
Cite
@article{arxiv.1407.0971,
title = {Effective Aligned 2HDM with a DFSZ-like invisible axion},
author = {Alejandro Celis and Javier Fuentes-Martin and Hugo Serodio},
journal= {arXiv preprint arXiv:1407.0971},
year = {2015}
}
Comments
8 pages, 1 figure. Discussion improved, references added. Matching the journal version