DocDBHyperNewsIndico
logo
Home

Collaboration

Operations

Research

User Information

Highlights

Precision measurement of Ξ0→Λγ at BESIII The BESIII Collaboration recently reported “Measurement of the decay Ξ0→Λγ with entangled Ξ0Ξ0 pairs”, which has been published in Science Bulletin [Sci.Bull. 70 (2025) 454-459].
Machine-learning-driven observation of the elusive semi-leptonic decay of charmed baryon The BESIII Collaboration recently reported the first observation of the Cabibbo-suppressed semi-leptonic decay Λc+ -> ne+ve, which employs a novel neutron reconstruction method based on a machine learning technology of Graph Neural Network (GNN). The result has been published in Nature Communications on January 15th, 2025 [Nat. Commun. 16, 681 (2025)].
Extracting the femtometer structure of strange baryons using the vacuum polarization effect The BESIII collaboration recently reported a method useful for hyperon-antihyperon pairs of different types which exploits the cross section enhancement caused by the vacuum polarization at the J/ψ resonance, enabling a precise determination of the hyperon structure function. The result has been published in Nature Communications on October 11th, 2024 [Nat. Commun. 15, 8812 (2024)].
First search for four-body Ds+ decays to e+e- final states The BESIII collaboration recently reported the first search for four-body D_s^+ decays to final states including an e+e- pair, based on 7.33 fb-1 data collected in the energy range √s=4.128-4.226 GeV. The results have been published recently in Physics Review Letters on September 17, 2024 [Phys. Rev. Lett. 133, 121801 (2024)].
Precise Measurement of Born Cross Sections for e-e+→ DDbar at √s = 3.80 − 4.95 GeV On August 21, 2024, the BESIII collaboration has published an article entitled “Precise Measurement of Born Cross Sections for e-e+→ DDbar at √s=3.80-4.95 GeV” in Physical Review Letters [Phys. Rev. Lett. 133 (2024) 081901], reporting groundbreaking measurements of Born cross sections for the e+e-→ D0D0bar and D+D-bar reactions at 150 center-of-mass energies between 3.80 and 4.95 GeV with unprecedented precision.
First study of antihyperon-nucleon scattering The BESIII collaboration recently reported the first study of antihyperon-nucleon scattering Λbarp→Λbarp with “Λbar beam” from the decay J/ψ→ΛΛbar based on 10 billion J/ψ data. The results have been published recently in Physics Review Letters on June 4, 2024 [Phys. Rev. Lett. 132, 231902 (2024)].