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 — preprints:2009:ttp09-41 [2016/03/17 11:03] (current) Line 1: Line 1: + ====== TTP09-41 Matching QCD and HQET heavy--light currents at three loops ====== + + + We consider the currents formed by a heavy and a light quark within + Quantum Chromodynamics and compute the matching to Heavy Quark + Effective + Theory to three-loop accuracy. As an application we obtain the + third-order perturbative corrections to ratios + of $B$-meson decay constants. + + |**S. Bekavac, A.G. Grozin, P. Marquard, J.H. Piclum, D. Seidel, M. Steinhauser**  | + |** Nucl.Phys.B833:46-63 B833 46-63 2010  **  | + | {{preprints:2009:ttp09-41.pdf|PDF}} {{preprints:2009:ttp09-41.ps|PostScript}} [[http://arxiv.org/abs/0911.3356|arXiv]] [[http://ttp.kit.edu/Progdata/ttp09/ttp09-41|Programs and Data]]   | + | |