3 papers
hep-ex2023
Measurement of the Branching Fraction for the Decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +592
Based on events collected with the BESIII detector operating at the BEPCII collider, the decay is…
hep-ex2022
Determination of U-spin breaking parameters with an amplitude analysis of the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +605
We present a study of the resonant structure of the decay , using quantum-correlated data produced at GeV. The data sampl…
hep-ex2022
First Direct Measurement of the Absolute Branching Fraction of
BESIII Collaboration, M. Ablikim, M. N. Achasov +591
The first direct measurement of the absolute branching fraction of is reported based on an annihilation sample of eve…