3 papers
hep-ex2025
Study of and in the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +666
We perform an amplitude analysis of the decay and measure its absolute branching fraction to be $(1.016 \pm 0.013_{\text {stat.}} \pm 0.014_{\text {syst.}})\%…
hep-ex2025
Study of the electromagnetic Dalitz decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +640
We report the first measurement of the di-electron invariant mass dependent transition form factor in the electromagnetic Dalitz decay using $(10087 \pm 44) \ti…
hep-ex2024
Search for
BESIII Collaboration, M. Ablikim, M. N. Achasov +644
Using 10.1 fb of collision data collected by the BESIII detector with center-of-mass energies between 4.15 GeV and 4.30 GeV, we search for the decays $X(3872)\toπ^0…