1995/04/26 by P. Kroll, Kroll, P.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Orbital Angular Momentum in Optics #Quantum Electrodynamics and Casimir Effect #Quantum optics and atomic interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9504394
6 pages, 3 figures, included in one compressed, uuencoded PS-file
arxiv created 1995/04/26 · openalex publication_date 1995/04/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is reported on predictions for the π-γ transition form factor obtained within a perturbative approach which includes transverse momentum effects and Sudakov corrections. The results clearly favor distribution amplitudes close to the asymptotic form, ∼ x1x2, and disfavor distribution amplitudes which are strongly concentrated in the end-point regions. Applications of that approach to the η-γ and η^′-γ transition form factors are discussed as well.