Relativistic entanglement in muon decay
arXiv:2309.15863 · doi:10.1007/s13538-026-02119-2
Abstract
We discuss the time evolution of quantum entanglement in the presence of non-collapsing interactions. In particular, the entanglement between the products of a muon decay in a magnetic field is revisited. It results from angular momentum conservation and leads to an anomaly in the measured muon g-factor in precise agreement with that reported by the Brookhaven and Fermilab experiments, alleviating the present tension between data-driven and lattice theoretical values.
Version published in Braz. J. Phys