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arXiv · 1510.07053

Isospin-violating dark-matter-nucleon scattering via two-Higgs-doublet-model portals

Aleksandra Drozd·Bohdan Grzadkowski·John F. Gunion·Yun Jiang
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Abstract

We show that in a multi-Higgs model in which one Higgs fits the LHC 125 GeV state, one or more of the other Higgs bosons can mediate DM-nucleon interactions with maximal DM isospin violation being possible for appropriate Higgs-quark couplings, independent of the nature of DM. We then consider the explicit example of a Type II two-Higgs-doublet model, identifying the h or H as the 125 GeV state while the H or h, respectively, mediates DM-nucleon interactions. Finally, we show that if a stable scalar, S, is added then it can be a viable light DM candidate with correct relic density while obeying all direct and indirect detection limits.

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Aleksandra Drozd, Bohdan Grzadkowski, John F. Gunion, Yun Jiang. 2015-10-23. Isospin-violating dark-matter-nucleon scattering via two-Higgs-doublet-model portals. https://doi.org/10.1088/1475-7516%2F2016%2F10%2F040

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