1996/05/27 by Ming Lu, Michael Luke, Martin J. Savage +1 · 6 citations
Computer Science · Physics and Astronomy · #Branching fraction #Charm (quantum number) #Computational Physics and Python Applications #Order (exchange) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Semileptonic decay #Term (time) #hep-ph
paper · pdf · doi:10.1103/physrevd.55.2827
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 55(5), 2827-2832 (American Physical Society) · LaTex, 14 pages, 2 eps figures. Added one reference, changed some comments
arxiv created 1996/05/27 · openalex publication_date 1997/03/01 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We calculate the O(\ensuremathαs2\ensuremathβ0) corrections to the decay rate b\ensuremath→ccs. For reasonable values of mc/mb this term is of the same order as both the one-loop and O(\ensuremathαs2ln2mW/mb) corrections to the decay rate. For mc/mb=0.3 the O(\ensuremathαs2\ensuremathβ0) corrections enhance the rate by \ensuremath∼18%. We also discuss the O(\ensuremathαs2\ensuremathβ0) corrections to b\ensuremath→c\ensuremathτ\ensuremathν_\ensuremathτ, the B semileptonic branching fraction, and the charm multiplicity.