Heavy quark expansion in beauty: recent successes and problems

Details Heavy quark expansion in beauty: recent successes and problems Heavy quark expansion in beauty: recent successes and problems

2004-09-10

arxiv.org/abs/hep-ph/0409125v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX, five figures. Invited talk at "Continuous Advances in QCD 2004, 13-16 May 2004, Minneapolis, MN USA; to appea

Scientific paper

The status of the QCD-based heavy quark expansion is briefly reviewed. A good
agreement between properly applied theory and new precision data is observed.
Critical remarks on certain recent claims from HQET are presented. Recent
applications to the exclusive heavy flavor transitions are addressed. The `1/2
> 3/2' problem for the transitions into the charm P-wave states is discussed.

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