期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP08(2013)084
关键词
Cosmology of Theories beyond the SM; Supersymmetric Standard Model; Nonperturbative Effects
资金
- Gottfried Wilhelm Leibniz programme of the Deutsche Forschungsgemeinschaft (DFG)
- DFG Sonderforschungsbereich/Transregio 9 Computergestutzte Theoretische Teilchenphysik
- Deutsche Telekom Stiftung
- MEC (Spain) [FPA2007-60323, FPA2011-23778]
- Spanish Consolider-Ingenio Programme CPAN [CSD2007-00042]
This paper is a continuation of an earlier work (arXiv:1210.7928) which computed analytically the tree-level annihilation rates of a collection of non-relativistic neutralino and chargino two-particle states in the general MSSM. Here we extend the results by providing the next-to-next-to-leading order corrections to the rates in the non-relativistic expansion in momenta and mass differences, which include leading P-wave effects, in analytic form. The results are a necessary input for the calculation of the Sommerfeld-enhanced dark matter annihilation rates including short-distance corrections at next-to-next-to-leading order in the non-relativistic expansion in the general MSSM with neutralino LSP.
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