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arXiv · 1407.0971

Effective Aligned 2HDM with a DFSZ-like invisible axion

Alejandro Celis·Javier Fuentes-Martin·Hugo Serodio
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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.

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Alejandro Celis, Javier Fuentes-Martin, Hugo Serodio. 2014-07-03. Effective Aligned 2HDM with a DFSZ-like invisible axion. https://doi.org/10.1016/j.physletb.2014.08.032

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