Dresden 2013 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 21: Astroteilchenphysik und Kosmologie (Theorie)
T 21.1: Vortrag
Mittwoch, 6. März 2013, 16:45–17:00, WIL-B122
DM@NLO and the impact of SUSY-QCD-corrections to (co-)annihilation-processes on Neutralino Dark Matter — Julia Harz1, Björn Herrmann2, Michael Klasen3, Karol Kovařík4, Quentin Le Boulc'h5, •Moritz Meinecke3, and Patrick Steppeler3 — 1Deutsches Elektronen-Synchrotron, Hamburg, Germany — 2Laboratoire d'Annecy de Physique Théorique, Annecy-le-Vieux, France — 3Institute of Theoretical Physics Münster, Germany — 4Karlsruhe Institute of Technology — 5Laboratoire de Physique Subatomique et de Cosmologie, Grenoble, France
A powerful method to constrain the parameter space of theories beyond the Standard Model is to compare the predicted dark matter relic density with cosmological precision measurements, in particular with WMAP- and the upcoming Planck-data. On the particle physics side, the main uncertainty on the relic density arises from the (co-)annihilation cross sections of the dark matter particle. After a motivation for including higher order corrections in the prediction of the relic density, the DM@NLO-project will be presented, a software package that allows for the computation of the neutralino (co-)annihilation cross sections including SUSY-QCD corrections at the one-loop level and the evaluation of their effect on the relic density using a link to the public codes MicrOMEGAs and DarkSUSY. Recent results of the impact of SUSY-QCD corrections on the neutralino (co-)annihilation cross section as well as further ongoing projects in the context of the DM@NLO-project will be discussed.