4 papers
hep-ex2025
Search for the electromagnetic Dalitz decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +689
Using a data sample of events collected at GeV by the BESIII detector, we search for the rare electromagnetic Dalitz deca…
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
Search for a dark baryon in the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +689
A search for a dark baryon is performed for the first time in the two-body decay using events collected at…
hep-ex2025
Search for and
BESIII Collaboration, M. Ablikim, M. N. Achasov +678
Using data samples of events and events collected with the BESIII detector at the BEPCII collider, we sea…