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2003-03-13
Three-loop anomalous dimension of the heavy-light quark current in HQET
K. G. ChetyrkinA. G. Grozin
文献摘要
The anomalous dimension of the heavy-light quark current in HQET is calculated with three-loop accuracy, as well as the renormalized heavy-quark propagator. The NNL perturbative correction to f_B/f_D is obtained.
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