News&Events

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  Evidence for Two Excited Ω^- Hyperons ​The BESIII collaboration recently reported the evidence for two excited Ω- hyperons. The results have been published in Physics Review Letters on March 4, 2025 [Phys. Rev. Lett. 134, 131903 (2025)]. Baryons are the simplest system in which all three colors of QCD form a colorless object.
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  Special topic on the 50th Anniversary of the Discovery of the Charm Quark and the BESIII Experiment  (in Chinese) 纪念粲夸克发现50周年和北京谱仪III实验专题 Special topic on the 50th Anniversary of the Discovery of the Charm Quark and the BESIII Experiment (in Chinese)
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  BESIII Physics and Software Workshop in Spring 2025, Mar. 17-20th, 2025 ,Henan Normal University (XinXiang, China) The BESIII Physics & Software workshop in Spring 2025 was held during March 17-20th at Henan Normal University (Xinxiang, Henan province).
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  Observation of D⁺→η^' μ⁺ν_μ and First Experimental Study of D⁺→η^' l⁺ν_l Decay Dynamics The BESIII collaboration has reported the observation of D+→η' μ+νμ​ and first experimental study of D+→η' l+νl decay dynamics. These results have been published in Physical Review Letters on 18 March 2025. [Phys. Rev. Lett. 134, 111801 (2025)].
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  Precision measurement of Ξ⁰→Λ_γ 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].
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  Exploring exotic light hadrons in the charmed baryon decay Λ_c⁺→Λπ⁺η The BESIII collaboration recently reported “Observation of Λc+→Λa0(980)+ and Evidence for Σ(1380)+ in Λc+→Λπ+η”, which has been published in Physical Review Letters on Jan. 17th, 2025 [Phys. Rev. Lett. 134, 021901 (2025)].
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  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)].
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  Study of D_s^+→f_0 (980) ρ^+ and ϕπ^+ decays through D_s^+→π^+ π^+ π^- π^0 The BESIII collaboration recently reported the first amplitude analysis and branching fraction measurement of D_s^+→π^+ π^+ π^- π^0 decays. The results have been published recently in Physics Review Letters on 7th Jan. 2025 [Phys. Rev. Lett. 134, 011904 (2025)].
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  Test of Lepton Universality and Measurement of the Form Factors of D^0→K^* (892)^- μ^+ ν_μ The BESIII collaboration recently reported a test of Lepton Universality and precise measurement of the Form Factors of D0→K* (892)- μ+ νμ based on 7.93 fb-1 data collected at the center-of-mass energy of 3.773 GeV. The results have been published recently in Physics Review Letters on January 2, 2025 [Phys. Rev. Lett. 134, 011803 (2025)].
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  Collaboration Meeting in Winter 2024, Dec.2- 6, 2024, Southeast University The BESIII Collaboration Meeting in Winter 2024 will be held at Southeast University (Jiulonghu Campus) from Dec. 2th to Dec. 6th, 2024.