PS01 Heavy Flavour Physics
The renormalized B-meson light-cone distribution amplitude
Institute for High-Energy Phenomenology, Newman Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, NY 14853, USA
Accepted: 25 November 2003
Published online: 2 December 2003
I discuss the renormalization-group equation governing the leading order light-cone distribution amplitude of the B-meson φ B +(ω,μ) and its exact analytic solution. The solution displays two features concerning the asymptotic behaviour of φ B +(ω,μ) for small and large values of ω. I comment on further applications and argue that the loss of normalizability is not a problem in practice.
PACS: 12.38.Cy – 12.39.Hg – 12.39.St – 13.25.Hw
© Società Italiana di Fisica, Springer-Verlag, 2004