From the 1 of 2 linked papers with an AI index.
2 papers
hep-ex2026
Precision Measurement of - Mass Difference
BESIII Collaboration, M. Ablikim, M. N. Achasov +684
The paper reports a precise measurement of the mass difference between the charm-strange mesons D_s*+ and D_s+ using e⁺e⁻ collision data collected by the BESIII detector.
hep-ex2026
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…