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T: Fachverband Teilchenphysik
T 18: Flavourphysik (Theorie) 1
T 18.7: Vortrag
Donnerstag, 1. März 2012, 18:15–18:30, VG 3.102
BR(B → Xs γ) in 2HDMs to NNLO in QCD — •Thomas Hermann and Matthias Steinhauser — Karlsruher Institut für Technologie (KIT), Institut für Theoretische Teilchenphysik
The rare decay rate B→ Xs γ provides the strongest bound on the mass of the charged Higgs boson in Two-Higgs Doublet Models (2HDM).
In this talk results for the three-loop corrections to the matching coefficients C7 and C8 are presented. They constitute building blocks for the NNLO predictions of BR(B → Xs γ) within the 2HDM.
We describe the calculation in detail and provide numerical results for the branching ratio.