Mechanisms of high energy polarized photoproduction of π−Δ++
This paper presents a Regge exchange model analysis of high-energy polarized π−Δ++ photoproduction data from GlueX and SLAC, using spin density matrix elements to constrain helicity amplitudes and providing the first extractions of several meson-nucleon-delta coupling constants.
Vanamali Shastry, Łukasz Bibrzycki, Vincent Mathieu, Glòria Montaña, Alessandro Pilloni, César Fernández-Ramírez, Robert J. Perry, Arkaitz Rodas, Adam P. Szczepaniak, Daniel Winney2026-04-27⚛️ nucl-th