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arXiv · 1109.4872

Higgs decays to dark matter: beyond the minimal model

Maxim Pospelov·Adam Ritz
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Abstract

We examine the interplay between Higgs mediation of dark matter annihilation and scattering on one hand, and the invisible Higgs decay width on the other, in a generic class of models utilizing the Higgs portal. We find that, while the invisible width of the Higgs to dark matter is now constrained for a minimal singlet scalar WIMP by experiments such as XENON100, this conclusion is not robust within more generic examples of Higgs mediation. We present a survey of simple WIMP scenarios with m_{DM} < m_h/2 and Higgs portal mediation, where direct detection signatures are suppressed, while the Higgs width is still dominated by decays to dark matter.

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Maxim Pospelov, Adam Ritz. 2011-09-22. Higgs decays to dark matter: beyond the minimal model. https://doi.org/10.1103/physrevd.84.113001

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