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Observation of Bell Inequality violation in B mesons

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arxiv quant-ph/0310192 v1 pith:VKEXLK7E submitted 2003-10-31 quant-ph hep-ex

Apollo Go (for the Belle Collaboration) This is my paper
classification quant-phhep-ex
keywords bellinequalitycorrelationmesonsparticle-antiparticleupsilonviolationassumption
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abstract

A pair of $B^0\bar B^0$ mesons from $\Upsilon(4S)$ decay exhibit EPR type non-local particle-antiparticle (flavor) correlation. It is possible to write down Bell Inequality (in the CHSH form: $S\le2$) to test the non-locality assumption of EPR. Using semileptonic $B^0$ decays of $\Upsilon(4S)$ at Belle experiment, a clear violation of Bell Inequality in particle-antiparticle correlation is observed: S=2.725+-0.167(stat)+-0.092(syst)

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  1. Colliders are Testing neither Locality via Bell's Inequality nor Entanglement versus Non-Entanglement

    hep-ph 2025-07 conditional novelty 4.0 of 10

    Collider measurements of final-state momenta alone cannot certify Bell nonlocality or entanglement, because the measured angular distribution is itself a local hidden variable model.

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