4 papers
hep-ex2024
Observation of
BESIII Collaboration, M. Ablikim, M. N. Achasov +645
By analyzing events accumulated with the BESIII detector, the decay is observed for the first time with a sig…
hep-ex2024
Measurement of the Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for in the Decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +651
We perform the first investigation of the process and report its Born cross sections over a range of center-of-mass energies from 4.699 to 4.951~GeV. Th…
hep-ex2024
First measurements of the absolute branching fraction of and upper limit on
BESIII Collaboration, M. Ablikim, M. N. Achasov +613
The absolute branching fraction of the decay is measured for the first time to be with 36…
hep-ex2023
Observation of
BESIII Collaboration, M. Ablikim, M. N. Achasov +642
By analyzing events collected with the BESIII detector operating at the BEPCII collider, the decay processes ()…