From the 1 of 3 linked papers with an AI index.
3 papers
hep-ex2026
Observation of a threshold enhancement in the spectrum in decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +677
The BESIII experiment analyzed over 2.7 billion ψ(3686) decays and observed a clear resonance-like enhancement near the π⁺π⁻ mass threshold in ψ(3686)→π⁺π⁻J/ψ decays, measuring its…
hep-ex2025
First measurement of the cross sections for at from 4.396 to 4.951 GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +701
Using collision data at 19 center-of-mass energies ranging from to corresponding to a total integrated luminosity of coll…
hep-ex2025
Observation of the electromagnetic radiative decays of the \boldmath{} and \boldmath{} to \boldmath{}
BESIII Collaboration, M. Ablikim, M. N. Achasov +689
Using events collected with the BESIII detector, we report the first observation of the electromagnetic radiative decays of the and $Î(…