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
Search for a massless particle beyond the Standard Model in the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +770
A search for a massless beyond-standard-model particle is performed in the decay using events collected with…