Relevant aspects for testing Bell inequalities with entangled meson-antimeson systems are analyzed. In particular, we argue that the result of A. Go, J. Mod. Optics 51, 991 (2004), which nicely illustrate the quantum entanglement of B-meson pairs, cannot be considered as a Bell-test refuting local realism.
@article{arxiv.quant-ph/0409051,
title = {Violation of a Bell inequality in particle physics experimentally verified?},
author = {R. A. Bertlmann and A. Bramon and G. Garbarino and B. C. Hiesmayr},
journal= {arXiv preprint arXiv:quant-ph/0409051},
year = {2009}
}