English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We compute the full O(alpha_s) supersymmetric QCD corrections forneutralino-stop co-annihilation into electroweak gauge and Higgs bosons in theMinimal Supersymmetric Standard Model (MSSM). We show that these annihilationchannels are phenomenologically relevant within the so-called phenomenologicalMSSM, in particular in the light of the observation of a Higgs-like particlewith a mass of about 126 GeV at the LHC. We present in detail our calculation,including the renormalization scheme, the infrared treatment, and thekinematical subtleties to be addressed. Numerical results for theco-annihilation cross sections and the predicted neutralino relic density arepresented. We demonstrate that the impact of including the corrections on thecosmologically preferred region of parameter space is larger than the currentexperimental uncertainty from WMAP data.

Neutralino-stop co-annihilation into electroweak gauge and Higgs bosons at one loop