Theoretical Aspects of the Heavy Quark Expansion

Abstract

I give a brief outline of the theoretical framework for the modern treatment of the strong interaction effects in heavy quark decays, based on first principles of QCD. This model-independent approach is required to meet the precision of current and future experiments. Applications to a few problems of particular practical interest are reviewed, including the precise determination of V_{cb} and V_{ub}. I emphasize the peculiarities of simultaneously accounting for the perturbative and power-suppressed effects necessary for accurate predictions.

18 pages, 2 Figures in the text; LaTeX. Invited lecture presented at the Workshop "Beauty `96", Rome, 17-21 June 1996; Minor stylistic changes, typos corrected, a double reference deleted; to appear in Proc. "Beauty `96" (Nucl. Instrum. & Methods A, 1996)

Cited by in corpus (3)

• Precision Corrections to Dispersive Bounds on Form Factors
• A connection between inclusive semileptonic decays of bound and free heavy quarks
• Strong interaction effects in semileptonic B decays