The fraternal WIMP miracle

Craig, Nathaniel; Katz, Andrey

doi:10.1088/1475-7516/2015/10/054

Title: The fraternal WIMP miracle

Journal Article · Thu Oct 01 00:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/10/054· OSTI ID:22525220

Craig, Nathaniel ^[1]; Katz, Andrey ^[2]

Department of Physics, University of California, Santa Barbara, CA 93106 (United States)
Theory Division, CERN, CH-1211 Geneva 23 (Switzerland)

We identify and analyze thermal dark matter candidates in the fraternal twin Higgs model and its generalizations. The relic abundance of fraternal twin dark matter is set by twin weak interactions, with a scale tightly tied to the weak scale of the Standard Model by naturalness considerations. As such, the dark matter candidates benefit from a ''fraternal WIMP miracle'', reproducing the observed dark matter abundance for dark matter masses between 50 and 150 GeV . However, the couplings dominantly responsible for dark matter annihilation do not lead to interactions with the visible sector. The direct detection rate is instead set via fermionic Higgs portal interactions, which are likewise constrained by naturalness considerations but parametrically weaker than those leading to dark matter annihilation. The predicted direct detection cross section is close to current LUX bounds and presents an opportunity for the next generation of direct detection experiments.

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OSTI ID:: 22525220

Journal Information:: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516

Country of Publication:: United States

Language:: English

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Title: The fraternal WIMP miracle

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