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Relic density computations at NLO: infrared finiteness and thermal correction
Journal of High Energy Physics
There is an increasing interest in accurate dark matter relic density predictions, which requires next-to-leading order (NLO) calculations. The method applied up to now uses zero-temperature NLO calculations of annihilation cross sections in the standard Boltzmann equation for freeze-out, and is conceptually problematic, since it ignores the finite-temperature infrared (IR) divergences from soft and collinear radiation and virtual effects. We address this problem systematically by starting fromdoi:10.1007/jhep10(2014)045 fatcat:bkebc5w5yjestfaviifnaxyuh4