Eur Phys J C (2004) 33: s259-s261
https://doi.org/10.1140/epjcd/s2003-03-127-0

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

Received: 1 November 2003
Accepted: 25 November 2003
Published online: 2 December 2003

Abstract

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