2002/11/30 by I. V. Anikin, Oleg Teryaev, O. V. Teryaev · 29 citations
Mathematics · Physics and Astronomy · #Amplitude #Factorization #Formalism (music) #Geometry #High-Energy Particle Collisions Research #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Twist #hep-ph
paper · pdf · doi:10.1016/s0370-2693(02)03195-7
published in Physics Letters B 554(1-2), 51-63 (Elsevier BV) · 14 pages, 6 ps. figures
arxiv created 2002/12/04 · openalex publication_date 2003/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present the detailed analysis of genuine twist-3 contributions to the exclusive electroproduction amplitude of transversely polarized vector mesons. Using the formalism based on the QCD factorization in the momentum representation we calculated all the genuine twist-3 terms and found the total expression of this amplitude at 1/Q level. Generally speaking, these terms violate standard factorization owing to the existence of the infrared divergencies in the amplitude of hard sub-processes, although the strongest divergencies cancel due to the QCD equations of motion. We discuss the possible treatment of surviving divergencies.