L. Ge

works on

BESIII detector 1 branching fraction 1 double dalitz decay 1 eta meson decay 1 rare decay 1

From the 1 of 2 linked papers with an AI index.

collaborators

2 papers

hep-ex2026

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

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

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

A search for a massless beyond-standard-model particle is performed in the decay $Ξ^{0} \to Λ + invisible$ using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with…

Measurement of the double Dalitz decay I^⋅→e+e−e+e−

Search for a massless particle beyond the Standard Model in the Ξ0→Λ+invisible decay

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay