Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-30
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 4 figures, submitted to the proceedings of "Identification of Dark Matter 2010," July 26-30, 2010, Montpellier, Franc
Scientific paper
Evaluating the relic density of dark matter is an interesting possibility to constrain the parameter space of new physics models. However, this calculation is affected by several sources of uncertainty. On the particle physics side, considerable progress has been made in the recent years concerning the calculation of the annihilation cross-section of dark matter, which is needed in this context. In particular, within the Minimal Supersymmetric Standard Model, the theoretical uncertainty has been reduced through the calculation of loop corrections. The present contribution gives an overview over the achievements that have been made in QCD corrections to neutralino pair annihilation. The numerical impact is illustrated for a few examples.
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