One-Particle Inclusive Semi-Leptonic B decays

Details One-Particle Inclusive Semi-Leptonic B decays One-Particle Inclusive Semi-Leptonic B decays

1998-08-27

arxiv.org/abs/hep-ph/9808442v1

Phys.Rev. D59 (1999) 034003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex extensions amsmath, epsfig required The complete paper, including figures, is also available via anonymous ftp at ftp:

Scientific paper

10.1103/PhysRevD.59.034003

We propose a method for a QCD based calculation of one-particle inclusive decays of the form B \to \bar D X or B \to \bar D^* X. It is based on the heavy mass limit and a short distance expansion of the amplitudes, which yield a power series in the parameter 1/M^2_X for the spectra and in \Lambda_QCD m_b/(m_b - m_c)^2 for the rates. We study the leading term of this expansion for the case of the semi--leptonic decays B \to \bar D X l^+ \nu.

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