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arXiv · hep-ph/9610301

Quantum-Mechanical Interference over Macroscopic Distances in the B^0 B^0 bar System

R. A. Bertlmann·W. Grimus
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Abstract

We argue that the B^0 B^0 bar state generated in the decay of Upsilon(4S) is well suited for performing tests of Einstein-Podolsky-Rosen correlations, i.e., quantum-mechanical interference effects over macroscopic distances. Using measurements of the ratio R = (#like-sign dilepton events)/(#opposite-sign dilepton events) and of the B_H - B_L mass difference we show that already presently existing data strongly favour the contribution of the interference term to R, as it is required by the rules of quantum mechanics.

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R. A. Bertlmann, W. Grimus. 1996-10-09. Quantum-Mechanical Interference over Macroscopic Distances in the B^0 B^0 bar System. https://doi.org/10.1016/s0370-2693(96)01558-4

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