Bottom quark mass and vertical bar V-cb vertical bar matrix element from R(e(+)e(-) -> b(b)over-bar) and Gamma(sl)(b -> cl nu(l)) in the next-to-next-to-leading order

Authors
Penin, AA Pivovarov, AA
Citation
Aa. Penin et Aa. Pivovarov, Bottom quark mass and vertical bar V-cb vertical bar matrix element from R(e(+)e(-) -> b(b)over-bar) and Gamma(sl)(b -> cl nu(l)) in the next-to-next-to-leading order, NUCL PHYS B, 549(1-2), 1999, pp. 217-241
Citations number
61
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
05503213 → ACNP
Volume
549
Issue
1-2
Year of publication
1999
Pages
217 - 241
Database
ISI
SICI code
0550-3213(19990531)549:1-2<217:BQMAVB>2.0.ZU;2-I
Abstract
We present a consistent analysis of Y sum rules and B-meson semileptonic wi dth in the next-to-next-to-leading order in the strong coupling constant. T he analysis is based on the analytical result for the heavy quark vector cu rrent correlator near threshold in the second-order in perturbative and rel ativistic expansion around the non-relativistic Coulomb approximation. (C) 1999 Elsevier Science B.V. All rights reserved.