en
Scientific article
Open access
English

The fraternal WIMP miracle

Published inJournal of cosmology and astroparticle physics, vol. 1510, no. 10, 054
Collection
  • Open Access - SCOAP3
Publication date2015
Abstract

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.

Keywords
  • Cosmology of theories beyond the SM
  • Dark matter theory
  • Particle physics - cosmology connection
Citation (ISO format)
CRAIG, Nathaniel, KATZ, Andrey. The fraternal WIMP miracle. In: Journal of cosmology and astroparticle physics, 2015, vol. 1510, n° 10, p. 054. doi: 10.1088/1475-7516/2015/10/054
Main files (1)
Article (Published version)
Identifiers
ISSN of the journal1475-7516
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Technical informations

Creation11/13/2015 8:21:09 AM
First validation11/13/2015 8:21:09 AM
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