PT Journal
AU Beneke, M
   Hellmann, C
   Ruiz-Femenia, P
TI Heavy neutralino relic abundance with Sommerfeld enhancements – a study of pMSSM scenarios
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2015
BP 162
EP 37pp
VL 03
IS 3
DI 10.1007/JHEP03(2015)162
LA English
DE Cosmology A Theories beyond the SM; Supersymmetric Standard Model; Nonperturbative Effects
AB We present a detailed discussion of Sommerfeld enhancements in neutralino dark matter relic abundance calculations for several popular benchmark scenarios in the general MSSM. Our analysis is focused on models with heavy wino- and higgsino-like neutralino LSI' and models interpolating between these two scenarios. This work is the first phenomenological application of effective field theory methods that we have developed in earlier work and that allow for the consistent study of Sommerfeld enhancements in nonrelativistic neutralino and chargino co-annihilation reactions within the general MSSM, away from the pure-wino and pure-higgsino limits.
ER