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Göttingen 2012 – scientific programme

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T: Fachverband Teilchenphysik

T 18: Flavourphysik (Theorie) 1

T 18.7: Talk

Thursday, March 1, 2012, 18:15–18:30, VG 3.102

BR(BXs 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 BXs 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(BXs γ) within the 2HDM. We describe the calculation in detail and provide numerical results for the branching ratio.

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