QCD corrections to lifetime differences of B_s mesons

Details QCD corrections to lifetime differences of B_s mesons QCD corrections to lifetime differences of B_s mesons

2000-09-17

arxiv.org/abs/hep-ph/0009203v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at "4th Workshop on Continuous Advances in QCD," 12-14 May 2000, Minneapolis, Minnesota, USA

Scientific paper

The calculation of QCD corrections to the width difference Delta Gamma in the B_s 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 Delta Gamma. The presented work has been performed in collaboration with Martin Beneke, Gerhard Buchalla, Christoph Greub and Alexander Lenz.

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