Article (Published version) (505 Kb) - 
Limited access to UNIGEOther version: http://stacks.iop.org/1475-7516/2013/i=10/a=031?key=crossref.04a4b5f39b8586c4f31c0cac1e700ee9
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Scientific Article
unige:36488 
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The Role of Electroweak Corrections for the Dark Matter Relic Abundance |
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| Published in | Journal of cosmology and astroparticle physics. 2013, vol. 2013, no. 10, p. 031-031 | |
| 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. | |
| Keywords | Dark matter theory — Particle physics — Cosmology connection | |
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| Full text |
Article (Published version) (505 Kb) - Limited access to UNIGE Other version: http://stacks.iop.org/1475-7516/2013/i=10/a=031?key=crossref.04a4b5f39b8586c4f31c0cac1e700ee9 |
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| 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 https://archive-ouverte.unige.ch/unige:36488 |
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