Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-03-13
Nucl.Phys. B666 (2003) 289-302
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 7 eps figures. Typos in the discussion of fB/fD corrected. Paper is also available at http://www-ttp.physik.uni-karl
Scientific paper
10.1016/S0550-3213(03)00490-5
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.
Chetyrkin K. G.
Grozin Andrey G.
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