QCD predictions for lepton spectra in inclusive heavy flavor decays
Abstract
We derive the lepton spectrum in semileptonic b decays from a nonperturbative treatment of QCD; it is based on an expansion in 1/mQ with mQ being the heavy flavor quark mass. The leading corrections arising on the 1/mQ level are completely expressed in terms of the difference in the mass of the heavy hadron and the quark. Nontrivial effects appear in 1/m2Q terms affecting mainly the end-point region; they are different for meson and baryon decays as well as for bottom and charm decays.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1993
- DOI:
- 10.1103/PhysRevLett.71.496
- arXiv:
- arXiv:hep-ph/9304225
- Bibcode:
- 1993PhRvL..71..496B
- Keywords:
-
- 13.20.Jf;
- 12.38.Lg;
- Decays of other mesons;
- Other nonperturbative calculations;
- High Energy Physics - Phenomenology
- E-Print:
- 6 pages (3 figures are not included), Latex, UND-HEP-93-BIG01, TPI-MINN-93/12-T, UMN-TH-1149/93