@Article{Beneke_etal2015,
author="Beneke, M.
and Hellmann, C.
and Ruiz-Femenia, P.",
title="Non-relativistic pair annihilation of nearly mass degenerate neutralinos and charginos III. Computation of the Sommerfeld enhancements",
journal="Journal of High Energy Physics",
year="2015",
publisher="Springer",
volume="05",
number="5",
pages="115--57pp",
optkeywords="Cosmology of Theories beyond the SM; Supersymmetric Standard Model; Nonperturbative Effects",
abstract="This paper concludes the presentation of the non-relativistic effective field theory formalism designed to calculate the radiative corrections that enhance the pair-annihilation cross sections of slowly moving neutralinos and charginos within the general minimal supersymmetric standard model (MSSM). While papers I and II focused on the computation of the tree-level annihilation rates that feed into the short-distance part, here we describe in detail the method to obtain the Sommerfeld factors that contain the enhanced long-distance corrections. This includes the computation of the potential interactions in the MSSM, which are provided in compact analytic form, and a novel solution of the multi-state Schrodinger equation that is free from the numerical instabilities generated by large mass splittings between the scattering states. Our results allow for a precise computation of the MSSM neutralino dark matter relic abundance and pair-annihilation rates in the present Universe, when Sommerfeld enhancements are important.",
optnote="WOS:000354959300001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2235), last updated on Thu, 11 Jun 2015 20:13:18 +0000",
issn="1029-8479",
doi="10.1007/JHEP05(2015)115",
opturl="http://arxiv.org/abs/1411.6924",
opturl="https://doi.org/10.1007/JHEP05(2015)115",
archivePrefix="arXiv",
eprint="1411.6924",
language="English"
}