The Violation of Cp Invariance

I. Introduction 575 1. The decay K° — • TT + W~. Basic experimental results 575 2. Attempts to explain the decay Kjj —-K*W~ without violation of CP invariance 576 3. The purpose of this article 577 4. The hypothesis of CPT invariance 577 5. A new interaction 578 6. The a particles 579 7. Summary of processes 579 n. Neutral K mesons 581 8. Description of K° mesons 581 9. The decays K^ — w*ir~ and K^ — 2w° 582 10. Interference experiments with 2?r decays 583 11. Leptonic decays of K° mesons and the rule AQ = AS 584 12. Leptonic decays of the K^ meson 584 13. Decays of K° mesons into three TT mesons 585 14. The contribution of real states to the transitions Kj-— • KJ> 585 15. Radiative decays of K° mesons 585 III. Fast processes 586 16. Properties of the X0 + and Z0 + interactions 586 17. The decay if — 3y 587 18. The decays rj° — 7r°e