The Role of Electroweak Corrections for the Dark Matter Relic Abundance
arXiv:1305.6391 · doi:10.1088/1475-7516/2013/10/031
Abstract
We analyze the validity of the theorems concerning the cancellation of the infrared and collinar divergences in the case of dark matter freeze-out in the early universe. In particular, we compute the electroweak logarithmic corrections of infrared origin to the annihilation cross section of a dark matter particle being the neutral component of a SU(2)_L multiplet. The inclusion of processes with final state W can modify significantly the cross sections computed with only virtual W exchange. Our results show that the inclusion of infrared logs is necessary for a precise computation of the dark matter relic abundance.
17 pages, 2 figures. Minor corrections to match published version
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Cited by in corpus (7)
- GeV-Scale Thermal WIMPs: Not Even Slightly Dead
- The Relic Neutralino Surface at a 100 TeV collider
- Composite Dark Matter and LHC Interplay
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