An improved measurement of ${\eta }^{\prime }\to e^{+}{e}^{-}\omega$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

Using a sample of $(10087\pm 44)\times 10^6$ $J/\psi$ events collected with the BESIII detector, an improved measurement of the decay ${\eta }^{\prime }\to e^{+}{e}^{-}\omega$, with $ω\…