A derived angular observable O1 that is a rescaling of the published BESIII alpha_psi value is presented as a 124.9-sigma observation of hyperon entanglement, without any new measurement.
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Observation of quantum entanglement in $\Lambda \bar{\Lambda}$ pair production via electron-positron annihilation
A derived angular observable O1 that is a rescaling of the published BESIII alpha_psi value is presented as a 124.9-sigma observation of hyperon entanglement, without any new measurement.