Retrieving "Beta Particles" from the archives

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1. Parity Inversion

   Linked via "beta particles"

   The definitive evidence for parity non-conservation came from the 1956 experiment conducted by Chien-Shiung Wu and collaborators, involving the beta decay of Cobalt-60 ($\text{}^{60}\text{Co}$) nuclei polarized in a strong magnetic field at cryogenic temperatures [2].
   The experiment measured the asymmetry in the emission direction of beta particles relative to the nuclear spin axis. If parity were conserved, the distribution of emitted …