Mesons Violate Bell's Inequality?

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SUMMARY

The violation of Bell's inequality has been confirmed in high-energy particle physics experiments involving B mesons at the KEK laboratory in Japan. This experiment demonstrated a violation at three standard deviations, reinforcing the predictions of quantum theory. Historically, Bell's inequality tests have primarily utilized photons or ions, making this finding significant. Future experiments with the complete Belle dataset or the upcoming Belle II dataset are anticipated to further validate these results.

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Mesons violate Bell’s inequality
6 November 2003

The famous Bell's inequality of quantum mechanics has been tested in a high-energy particle physics experiment for the first time. The inequality was violated by three standard deviations in experiments with B mesons at the KEK laboratory in Japan - yet again confirming the predictions of quantum theory (arxiv.org/abs/quant-ph/0310192; J. Mod. Optics to be published). Previously most Bell's inequality experiments have been performed with photons or ions.

http://physicsweb.org/article/news/7/11/3/

It's interesting to say the least, though of course it's not yet been reproduced. opinions? wild speculation?
 
Physics news on Phys.org
Looks like something that could be repeated with the full Belle dataset, or with the future Belle II dataset. The decay chain is quite common and should have a high trigger efficiency.
 

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