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Relic density and CMB constraints on dark matter annihilation with Sommerfeld enhancement

PHYSICAL REVIEW D, no. 8 (2010)

Cited: 89|Views24

Abstract

We calculate how the relic density of dark matter particles is altered when their annihilation is enhanced by the Sommerfeld mechanism due to a Yukawa interaction between the annihilating particles. Maintaining a dark matter abundance consistent with current observational bounds requires the normalization of the s-wave annihilation cross ...More

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