1997/12/23 by L. Mankiewicz, G. Piller, T. Weigl · 2 citations
Mathematics · Physics and Astronomy · #Diagonal #Distribution (mathematics) #Distribution function #Geometry #High-Energy Particle Collisions Research #Isospin #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Symmetry (geometry) #Twist #Vector meson #hep-ph
paper · pdf · doi:10.1103/physrevd.59.017501
published as Phys.Rev. D59 (1999) 017501 · 8 pages, Latex
arxiv created 1997/12/23 · openalex publication_date 1998/12/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present an analysis of twist-2, leading order QCD amplitudes for hard exclusive leptoproduction of charged vector mesons. These processes are determined by nonforward parton distribution functions which are nondiagonal in quark flavor. We derive relations between flavor diagonal and nondiagonal distribution functions based on isospin symmetry. Furthermore, we discuss general features of \ensuremathρ+ and \ensuremathρ^\ensuremath- production cross sections, and present estimates based on a simple model for nonforward distribution functions.