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arxiv 1402.5143 v2 pith:YMG2ZVFP submitted 2014-02-20 hep-ph

The SIMP Miracle

classification hep-ph
keywords darkmattersectormodelstandardthermalachievingaddress
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a new paradigm for achieving thermal relic dark matter. The mechanism arises when a nearly secluded dark sector is thermalized with the Standard Model after reheating. The freezeout process is a number-changing 3->2 annihilation of strongly-interacting-massive-particles (SIMPs) in the dark sector, and points to sub-GeV dark matter. The couplings to the visible sector, necessary for maintaining thermal equilibrium with the Standard Model, imply measurable signals that will allow coverage of a significant part of the parameter space with future indirect- and direct-detection experiments and via direct production of dark matter at colliders. Moreover, 3->2 annihilations typically predict sizable 2->2 self-interactions which naturally address the `core vs. cusp' and `too-big-to-fail' small structure problems.

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Cited by 13 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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