The B-Meson Distribution Amplitude in QCD

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

References in corpus (31)

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• Soft-collinear effective theory and heavy-to-light currents beyond leading power
• Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil
• Asymptotics of Heavy-Meson Form Factors
• Structure functions for large $x$ and renormalization of Wilson loops
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• Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory
• Renormalization-Group Evolution of the B-Meson Light-Cone Distribution Amplitude
• Radiative leptonic decays of B mesons in QCD
• B meson light-cone distribution amplitudes in the heavy-quark limit
• Radiative Corrections to the Decay $B\to \pi e\nu$ and the Heavy Quark Limit
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