Perturbative corrections to semileptonic b decay distributions
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- ,
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23 pages
Published in:
- Nucl.Phys.B 719 (2005) 77-102
e-Print:
- hep-ph/0503083 [hep-ph]
Report number:
- BICOCCA-FT-05-5,
- DFTT-06-05,
- GEF-TH-1-05,
- LMU-ASC-20-05
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Abstract:
We compute O(alpha_s) and O(alpha_s^n beta_0^{n-1}) (BLM) corrections to the five structure functions relevant for b->q l nu decays and apply the results to the moments of a few distributions of phenomenological importance. We present compact analytic one-loop formulae for the structure functions, with proper subtraction of the soft divergence.- 12.15.Hh
- 12.38.Bx
- 13.25.Hw
- bottom: semileptonic decay
- bottom: width
- quantum chromodynamics: perturbation theory
- correction: higher-order
- lepton: energy spectrum
- hadron: mass spectrum
- moment
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