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Scientific article
English

The Role of Electroweak Corrections for the Dark Matter Relic Abundance

Published inJournal of cosmology and astroparticle physics, vol. 2013, no. 10, p. 031-031
Publication date2013
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.

Keywords
  • Dark matter theory
  • Particle physics
  • Cosmology connection
Citation (ISO format)
CIAFALONI, Paolo et al. The Role of Electroweak Corrections for the Dark Matter Relic Abundance. In: Journal of cosmology and astroparticle physics, 2013, vol. 2013, n° 10, p. 031–031. doi: 10.1088/1475-7516/2013/10/031
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Identifiers
ISSN of the journal1475-7516
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