Ablikim, M, Achasov, MN, Ai, XC
et al. (2015). Observation of the Dalitz decay η′ → γ
e+e-
.
PHYSICAL REVIEW D, 92(1), 10.1103/PhysRevD.92.012001
Ablikim, M, Achasov, MN, Ai, XC et al. (2015). Observation of the Dalitz decay η′ → γe+e-
. PHYSICAL REVIEW D, 92(1), 10.1103/PhysRevD.92.012001