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Strongly Interacting Light Dark Matter
by Sebastian Bruggisser, Francesco Riva, Alfredo Urbano
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|As Contributors:||Sebastian Bruggisser · Francesco Riva|
|Arxiv Link:||http://arxiv.org/abs/1607.02474v3 (pdf)|
|Date submitted:||2017-07-06 02:00|
|Submitted by:||Riva, Francesco|
|Submitted to:||SciPost Physics|
In the presence of approximate global symmetries that forbid relevant interactions, strongly coupled light Dark Matter (DM) can appear weakly coupled at small energy and generate a sizable relic abundance. Fundamental principles like unitarity restrict these symmetries to a small class, where the leading interactions are captured by effective operators up to dimension-8. Chiral symmetry, spontaneously broken global symmetries and non-linearly realized supersymmetry are examples of this. Their DM candidates (composite fermions, pseudo Nambu-Goldstone Bosons and Goldstini) are interesting targets for LHC missing-energy searches.
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Published as SciPost Phys. 3, 017 (2017)
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