Theoretical Aspects of the Heavy Quark Expansion

Details Theoretical Aspects of the Heavy Quark Expansion Theoretical Aspects of the Heavy Quark Expansion

1996-11-07

arxiv.org/abs/hep-ph/9611259v2

Nucl.Instrum.Meth. A384 (1996) 17-25

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 2 Figures in the text; LaTeX. Invited lecture presented at the Workshop "Beauty `96", Rome, 17-21 June 1996; Minor s

Scientific paper

10.1016/S0168-9002(96)01082-0

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.

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