Measurement of the η′-meson mass using J/ ψ→γη′ (Physical Review Letters, 2008)

(untitled) - Libby, J; Martin, L; Powell, A; Wilkinson, G; Ecklund, K; Love, W; Savinov, V; Mendez, H; Ge, J; Miller, D; Shipsey, I; Xin, B; et al.