Exploring baryon semileptonic decays through polarization and entanglement
Nature, Published online: 02 September 2026; doi:10.1038/s41586-026-10818-8 Polarization and quantum entanglement measurements of baryon semileptonic decay greatly enhance single-event sensitivity, and combined with lattice quantum chromodynamics calculations enable determination of the |Vus| element of the Cabibbo–Kobayashi–Maskawa matrix, providing an independent test of the standard model.
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