2 papers
hep-ex2025
First Measurement of the Decay Dynamics in the Semileptonic Transition of the into the Axial-vector Meson
BESIII Collaboration, M. Ablikim, M. N. Achasov +677
Using data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb, we report the first measu…
hep-ex2025
Observation of the -annihilation process and measurement of in decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +650
We present the first amplitude analysis and branching fraction measurement of the decay , using collision data collected with the BESIII detector…