Causality in Kaon Decays
|Title||Causality in Kaon Decays|
|Read in full||Link to paper|
|Journal||Proceedings of the NPA|
|No. of pages||1|
Read the full paper here
The question we want to analyze is described by Branco, Lavoura and Silva: There is no other particle with equal mass. Therefore, KL must be its own antiparticle. It decays both to Pi+e−Nue and to the C-conjugate mode Pi−e+Nue. However, it decays slightly less often to the first than to the second mode. This fact unequivocally establishes both C violation and CP violation.
There is an unstated assumption in their statement: the decays of the kaon are internal (independent of the background) and acausal (they have no cause). These assumptions come from standard quantum mechanics. We show that there is a cause for their decay and there is neither C violation nor CP violation in the decays of the kaon. The asymmetry in the decays is due to the asymmetry of the background, not an inherent difference.