From the 1 of 3 linked papers with an AI index.
3 papers
hep-ex2026
Measurement of the double Dalitz decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +689
The BESIII experiment measured the rare decay of the eta meson into two electron-positron pairs, determining its branching fraction to be about 2.6 × 10⁻⁵.
hep-ex2026
Amplitude Analysis of Singly Cabibbo-Suppressed Decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +686
Using a sample of annihilation data corresponding to an integrated luminosity of 4.4 collected with the BESIII detector at the BEPCII collider and produ…
hep-ex2026
An improved measurement of
BESIII Collaboration, M. Ablikim, M. N. Achasov +772
Using a sample of events collected with the BESIII detector, an improved measurement of the decay , with…