arXiv:1702.04796·v3·High Energy Physics — Phenomenology
Off-shell gluon production in interaction of a projectile with 2 or 3 targets
M.A. Braun🇷🇺 · M.Yu. Salykin (Saint-Petersburg State University, Russia)🇷🇺
Abstract
Within the effective QCD action for the Regge kinematics amplitudes for virtual gluon emission are studied in collision of a projectile with two and three targets. It is demonstrated that all un- Feynman singularities cancel between induced vertices and rescattering contributions. Formulas simplify considerably in a special gauge which is a straightforward generalization of the light-cone gauge for emission of real gluons.
Comments: 13 pages, 6 figures; submitted to Eur.Phys.Jour.C