Measurement of Λ baryon polarization in e+e−→ΛΛ¯ at s=3.773  GeV

2022

Observation of theψ(1 D23)State ine+e−→π+π−γχc1at BESIII

2015

Measurement of the e+e−→π+π−J/ψ cross section in the vicinity of 3.872 GeV

2023

Measurement of ψ(3686)→ΛΛ¯η and ψ(3686)→ΛΛ¯π0 decays

2022

Search for hyperon ΔS=ΔQ violating decay Ξ0→Σ−e+νe

2023

Observation of the doubly radiative decay η′→γγπ0

2017

Based on a sample of 1.31 billion J/psi events collected with the BESIII detector, we report the study of the doubly radiative decay eta' -> gamma gamma pi(0) for the first time, where the eta' meson is produced via the J/psi -> gamma eta' decay. The branching fraction of eta' -> gamma gamma pi(0) inclusive decay is measured to be B(eta' -> gamma gamma pi(0))(Incl) = (3.20 +/- 0.07(stat) +/- 0.23(sys)) x 10(-3), while the branching fractions of the dominant process eta' -> gamma omega and the non-resonant component are determined to be B(eta' -> gamma omega) x B(omega -> gamma pi(0)) = (23.7 +/- 1.4(stat) +/- 1.8(sys)) x 10(-4) and B(eta' -> gamma gamma pi(0))(NR) = (6.16 +/- 0.64(stat) +/-…

Search for baryon- and lepton-number violating decays D0→p¯e+ and D0→pe−

2022