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arXiv · 1811.05488

Neutrino Masses in a Two Higgs Doublet Model with a U(1) Gauge Symmetry

Daniel A. Camargo·Alex G. Dias·Tessio B. de Melo·Farinaldo S. Queiroz
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Abstract

General Two Higgs Doublet Models (2HDM) are popular Standard Model extensions but feature flavor changing interactions and lack neutrino masses. We discuss a 2HDM where neutrino masses are generated via type I seesaw and propose an extension where neutrino masses are generated via a type II seesaw mechanism with flavor changing interactions being absent via the presence of a U(1) gauge symmetry. After considering a variety of bounds such as those rising from collider and electroweak precision we show that our proposal stands as a UV complete 2HDM with a dark photon where neutrino masses and flavor changing interactions are addressed. A possible dark matter realization is also discussed.

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Daniel A. Camargo, Alex G. Dias, Tessio B. de Melo, Farinaldo S. Queiroz. 2019-04-23. Neutrino Masses in a Two Higgs Doublet Model with a U(1) Gauge Symmetry. https://doi.org/10.1007/jhep04(2019)129

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