TY  - JOUR
AU  - Hellmann, C.
AU  - Ruiz-Femenia, P.
PY  - 2013
DA  - 2013//
TI  - Non-relativistic pair annihilation of nearly mass degenerate neutralinos and charginos II. P-wave and next-to-next-to-leading order S-wave coefficients
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 084
EP  - 49pp
VL  - 08
IS  - 8
PB  - Springer
KW  - Cosmology of Theories beyond the SM
KW  - Supersymmetric Standard Model
KW  - Nonperturbative Effects
AB  - 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.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1303.0200
UR  - https://doi.org/10.1007/JHEP08(2013)084
DO  - 10.1007/JHEP08(2013)084
LA  - English
N1  - WOS:000324113700084
ID  - Hellmann+Ruiz-Femenia2013
ER  -