The B-Meson Distribution Amplitude in QCD
arXiv:hep-ph/0309330 · doi:10.1103/PhysRevD.69.034014
Abstract
The B-meson distribution amplitude is calculated using QCD sum rules. In particular we obtain an estimate for the integral relevant to exclusive B-decays λ_B = 460 \pm 110 MeV at the scale 1 GeV. A simple QCD-motivated parametrization of the distribution amplitude is suggested.
17 pages, 8 figures, Latex style