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I'm trying to get my head around neutral Kaon oscillations. As far as I understand it neutral Kaons can change between [itex]K^0[/itex] and [itex]\overline{K^0}[/itex] as they propagate. Going through the quantum mechanics of this implies that this oscillation must be facilitated by a mass difference between the [itex]K^0[/itex] and [itex]\overline{K^0}[/itex] in a [itex]\cos(\Delta m t)[/itex] term.

But I thought a mass difference between any particle and its antiparticle implies CPT violation.

As far as I know CPT is not known to be violated so my question is: How do Kaon Oscillations maintain CPT invariance?

Thanks in advance for any help :D

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# How to maintain CPT invariance in Kaon oscillations

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