Retrieving "Relativistic Causality" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Parity Inversion

   Linked via "relativistic causality"

   $$|\text{K}L\rangle = \frac{1}{\sqrt{1+|\epsilon|^2}} (|\text{K}{\text{CP}=-1}\rangle + \epsilon |\text{K}_{\text{CP}=+1}\rangle)$$
   The observed value of $\epsilon$ is extremely small, approximately $2.2 \times 10^{-3}$. This small violation of $\mathcal{C}\mathcal{P}$ implies a corresponding, albeit tiny, violation of the master CPT symmetry, which is generally believed to be exact due to relativistic causality constraints [5].
   Parity Inversion in Classical Mechanics and Optics