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arXiv · hep-ph/9610425

BLM-Resummation and OPE in Heavy Flavor Transitions

Nikolai Uraltsev
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Abstract

An all-order resummation is performed for the effect of the running of the strong coupling in the zero recoil sum rule for the axial current and for the kinetic operator \vecπ^2. The perturbative corrections to well-defined objects of OPE turn out to be very moderate. The renormalization of the kinetic operator is addressed.

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Nikolai Uraltsev. 1996-11-04. BLM-Resummation and OPE in Heavy Flavor Transitions. https://doi.org/10.1016/s0550-3213(97)00121-1

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