BESIII Achieves World's Most Precise Measurement of Lambda Hyperon Electric Dipole Moment
The BESIII Collaboration has achieved the world's most precise measurement of the electric dipole moment (EDM) of the Lambda (Λ) hyperon using quantum-entangled Λ–anti-Λ pairs produced in J/ψ ...

BESIII Observes Transverse Polarization of Charmed Baryons for the First Time
he BESIII Collaboration has observed, for the first time, transverse polarization of the lightest charmed baryon, the Λ₊⁺, produced in electron-positron annihilation near the production threshol...

Quantum-entangled hyperons open a new route to testing the Standard Model
BESIII pioneers a study of baryon semileptonic decays through polarization and quantum entanglement, including the first semileptonic form-factor measurements for an antihyperon.

First observation of D⁰⁽⁺⁾ → K̅ ω e⁺ νₑ decays and experimental evidence for the two-pole structure of K̅₁(1270)
The BESIII collaboration recently reported the first observation of the semileptonic decays D⁰ → K⁻ ω e⁺ νₑ and D⁺ → K_S⁰ ω e⁺ νₑ with significances of 8.0σ and 5.8σ, respectively. ...