2 papers
hep-ex2025
A novel measurement of the strong-phase difference between and decays using -even and -odd quantum-correlated pairs
BESIII Collaboration, M. Ablikim, M. N. Achasov +698
A novel measurement technique of strong-phase differences between the decay amplitudes of and mesons is introduced which exploits quantum-correlated pa…
hep-ex2025
First observation of quantum correlations in and -even constrained pairs
BESIII Collaboration, M. Ablikim, M. N. Achasov +698
The study of meson pairs produced with quantum correlations gives direct access to parameters that are challenging to measure in other systems. In this Letter, the existence of qua…