Matching QCD and HQET heavy-light currents at three loops
classification
✦ hep-ph
keywords
currentsheavymatchingquarkaccuracyapplicationb-mesonchromodynamics
read the original abstract
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.
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