Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV

Lopez Honorez, Laura; Schwetz-Mangold, Thomas; Zupan, Jure

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Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV

MPS-Authors

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Lopez Honorez, Laura
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Schwetz-Mangold, Thomas
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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http://dx.doi.org/10.1016/j.physletb.2012.07.017
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1203.2064
(Preprint), 473KB

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Citation

Lopez Honorez, L., Schwetz-Mangold, T., & Zupan, J. (2012). Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV. Physics Letters B, 716(1), 179-185. Retrieved from http://arxiv.org/abs/1203.2064.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-F08A-C

Abstract

We show that fermionic dark matter (DM) which communicates with the Standard Model (SM) via the Higgs portal is a viable scenario, even if a SM-like Higgs is found at around 125 GeV. Using effective field theory we show that for DM with a mass in the range from about 60 GeV to 2 TeV the Higgs portal needs to be parity violating in order to be in agreement with direct detection searches. For parity conserving interactions we identify two distinct options that remain viable: a resonant Higgs portal, and an indirect Higgs portal. We illustrate both possibilities using a simple renormalizable toy model.