Comprehensive measurement of η′ photoproduction off the proton at Eγ<2.4 GeV
This paper presents a comprehensive measurement of photon beam asymmetries, total, and differential cross sections for η′ photoproduction off the proton up to 2.32 GeV, providing new constraints for amplitude decomposition and suggesting a potentially larger coupling of the η′-nucleon system to the N(2250) resonance.
N. Muramatsu, J. K. Ahn, W. C. Chang, J. Y. Chen, M. L. Chu, S. Daté, T. Gogami, H. Hamano, T. Hashimoto, Q. H. He, K. Hicks, T. Hiraiwa, Y. Honda, T. Hotta, Y. Inoue, T. Ishikawa, I. Jaegle, Y. Kasam (…)2026-02-24⚛️ nucl-ex