Perturbative corrections to semileptonic b decay distributions

Mar, 2005
23 pages
Published in:
  • Nucl.Phys.B 719 (2005) 77-102
e-Print:
Report number:
  • BICOCCA-FT-05-5,
  • DFTT-06-05,
  • GEF-TH-1-05,
  • LMU-ASC-20-05

Citations per year

200520102015202020240246810
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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