Inclusive B-decay spectra and IR renormalons

Details Inclusive B-decay spectra and IR renormalons Inclusive B-decay spectra and IR renormalons

2004-07-28

arxiv.org/abs/hep-ph/0407322v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 2 eps figures. Invited talk at the workshop `Continuous Advances in QCD 2004', Minneapolis, Minnesota, May 13-16 200

Scientific paper

I illustrate the role of infrared renormalons in computing inclusive B-decay
spectra. I explain the relation between the leading ambiguity in the definition
of Sudakov form factor \sim \exp(N\Lambda/M) and that of the pole mass, and
show how these ambiguities cancel out between the perturbative and
non-perturbative components of the b-quark distribution in the meson.

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