One-loop corrections to gaugino (co-)annihilation into quarks in the MSSM

International audienceWe present the full $\mathcal{O}(\alpha_s)$ supersymmetric QCD correctionsfor gaugino annihilation and co-annihilation into light and heavy quarks in theMinimal Supersymmetric Standard Model (MSSM). We demonstrate that thesechannels are phenomenologically relevant within the so-called phenomenologicalMSSM. We discuss selected technical details such as the dipole subtractionmethod in the case of light quarks and the treatment of the bottom quark massand Yukawa coupling. Numerical results for the (co-)annihilation cross sectionsand the predicted neutralino relic density are presented. We show that theimpact of including the radiative corrections on the cosmologically preferredregion of the parameter space is larger than the current experimentaluncertainty from Planck data