2 papers
hep-ex2026
Strong and electromagnetic amplitudes, direct and isospin asymmetries in the decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +766
Using annihilation data collected at 26 center-of-mass energy points between 3000.00 and with the BESIII detector, corresponding to a total integrated…
hep-ex2026
Observation of the decays and
Belle, Belle II Collaborations, : +403
We report the first observation of the decays and , with significances of $6.4\,…