Perturbative corrections to semileptonic B decay distributions

Authors :: Giovanni Ridolfi
Valentina Aquila
Paolo Gambino
Nikolai Uraltsev
Publication Year :: 2005
Publisher :: Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598, 2005.
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.<br />23 pages, LaTex. A number of textual changes are added for clarity, a missing definition is provided