Journal
PHYSICS LETTERS B
Volume 612, Issue 1-2, Pages 13-20Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2005.02.055
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Moments of the renormalized B-meson shape function provide a natural way to define short-distance, running heavy-quark parameters such as the b-quark mass and kinetic energy. These parameters are particularly well suited for studies of inclusive decay distributions. The definitions Of m(b) and mu(2)(pi) in this shape-function scheme are derived to two-loop order. Using previous determinations of heavy-quark parameters in other schemes, we find m(b)(mu(f)) = (4.63 +/- 0.08) GeV and mu(2)(pi) (mu(f)) = (0.15 +/- 0.07) GeV2 at a reference scale mu(f) = 1.5 GeV. (c) 2005 Elsevier B.V. All rights reserved.
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