QCD corrections to lifetime differences of B s mesons 1
نویسندگان
چکیده
The calculation of QCD corrections to the width difference ∆Γ in the Bs-meson system is presented. The next-to-leading order corrections reduce the dependence on the renormalization scale significantly and allow for a meaningful use of hadronic matrix elements from lattice gauge theory. At present the uncertainty of the lattice calculations limits the prediction of ∆Γ. The presented work has been performed in collaboration with Martin Beneke, Gerhard Buchalla, Christoph Greub and Alexander Lenz.
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