The observation of Parity violation in muon decay can be compared to the concept of violation of parity in weak interactions in general as an extension of The Wu Experiment, as well as the change of angular momentum introduced by a phase change of ? corresponding to the charge-parity operator being invariant in this interaction.
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:" " One may then argue that other implementations were not successful, but that's hard to do for the mirror image of ordinary life as this should have almost the same biochemical properties " " people have actually suggested that the parity violation of the weak force might give a significant advantage to one enantiomer over the other.
33.
Thus the original Kaluza Klein theory is a prototype for the unification of gauge and gravity interactions, at least at the classical level, however it is known to be insufficient to describe nature for a variety of reasons ( missing weak and strong forces, lack of parity violation, etc . ) A more complex compact geometry is needed to reproduce the known gauge forces.
