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Testing Local Realism in P to VV Decays

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arxiv 0903.1246 v3 pith:43QVNBTG submitted 2009-03-06 hep-ph quant-ph

Testing Local Realism in P to VV Decays

classification hep-ph quant-ph
keywords decaysvectorcorrelationentangledmesonspolarizationazimuthalbrief
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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It was found that the vector meson pair from the pseudoscalar decays can form an entangled state. In this work we give out detailed explanations on the polarization correlation of the two entangled vector mesons. It is demonstrated that an experimental test of the Clauser-Horne inequality can be carried out through measuring the azimuthal distribution of four pseudoscalars in the cascade decay $\eta_c \to VV \to (PP)(PP)$, and the measurement of this process is feasible with the current running experiments in tau-charm factory. Moreover, a brief discussion on the polarization correlation of the two vector mesons from $B \to VV$ decays is also presented.

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