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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)].