2 papers
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
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…