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Light asymmetric dark matter from new strong dynamics

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arxiv 1103.4350 v1 pith:WXACVJTI submitted 2011-03-22 hep-ph astro-ph.CO

Light asymmetric dark matter from new strong dynamics

classification hep-ph astro-ph.CO
keywords darkasymmetrybaryonelectroweakinteractionsmatteranalogyasymmetric
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A ~5 GeV `dark baryon' with a cosmic asymmetry similar to that of baryons is a natural candidate for the dark matter. We study the possibility of generating such a state through dynamical electroweak symmetry breaking, and show that it can share the relic baryon asymmetry via sphaleron interactions, even though it has no electroweak interactions. The scattering cross-section on nucleons, estimated in analogy to QCD, is within reach of underground direct detection experiments.

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