919 citations · 1.2k across the 7 of their papers we have counts for
1 paper · 1 filter
BES Collaboration, M. Ablikim
Using J/psi -> mu^+ mu^- decays from a sample of approximately 4 million psi(2S) events collected with the BESI detector, the branching fractions of psi(2S) -> eta J/psi, pi^0 pi^0…