2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106496A combined analysis of the existing data on the reactions $γp \to p η^\prime $ and $pp \to ppη^\prime $, based on a relativistic meson exchange model of hadronic interactions, is presented.Talk given at the N*2005 Workshop (Oct. 2005, Tallahassee, FL); to appear in the Proceedings (to be publ. by WorldScientific)Nuclear Theorytext