@article{discovery1308565,
          volume = {99},
            note = {{\copyright} 2007 The American Physical Society},
          number = {13},
           month = {September},
           title = {Measurement of Einstein-Podolsky-Rosen-type flavor entanglement in Y(4S) -{\ensuremath{>}} B-0(B)over-bar0 decays},
            year = {2007},
       publisher = {AMER PHYSICAL SOC},
         journal = {PHYS REV LETT},
        keywords = {PARTICLE PHYSICS, QUANTUM-MECHANICS, BELL INEQUALITY, EPR EXPERIMENT, B-MESONS, VIOLATION, NONSEPARABILITY, INTERFERENCE, PHOTONS, SYSTEM},
             url = {http://dx.doi.org/10.1103/PhysRevLett.99.131802},
          author = {Go, A and Bay, A and Abe, K and Aihara, H and Anipko, D and Aulchenko, V and Aushev, T and Bakich, AM and Barberio, E and Belous, K and Bitenc, U and Bizjak, I and Blyth, S and Bozek, A and Bracko, M and Browder, TE and Chang, P and Chao, Y and Chen, A and Chen, KF and Chen, WT and Cheon, BG and Chistov, R and Choi, Y and Choi, YK and Cole, S and Dalseno, J and Danilov, M and Dash, M and Drutskoy, A and Eidelman, S and Epifanov, D and Fratina, S and Gabyshev, N and Gershon, T and Gokhroo, G and Golob, B and Gorisek, A and Ha, H and Hastings, NC and Hayasaka, K and Hayashii, H and Hazumi, M and Heffernan, D and Hokuue, T and Hoshi, Y and Hou, S and Hou, WS and Iijima, T and Ikado, K and Imoto, A and Inami, K and Ishikawa, A and Ishino, H and Itoh, R and Iwasaki, M and Iwasaki, Y and Jacoby, C and Kang, JH and Katayama, N and Kawasaki, T and Khan, HR and Kichimi, H and Kim, HJ and Kim, SK and Kim, YJ and Kinoshita, K and Korpar, S and Krizan, P and Krokovny, P and Kulasiri, R and Kumar, R and Kuo, CC and Kuzmin, A and Kwon, YJ and Lange, JS and Lee, J and Lee, MJ and Lesiak, T and Limosani, A and Lin, SW and Liu, Y and Liventsev, D and Matsumoto, T and Matyja, A and McOnie, S and Mitaroff, W and Miyake, H and Miyata, H and Miyazaki, Y and Mizuk, R and Mori, T and Nakano, E and Nakao, M and Natkaniec, Z and Nishida, S and Nitoh, O and Ogawa, S and Ohshima, T and Olsen, SL and Onuki, Y and Pakhlov, P and Pakhlova, G and Palka, H and Park, CW and Park, H and Peak, LS and Pestotnik, R and Peters, M and Piilonen, LE and Sahoo, H and Sakai, Y and Satoyama, N and Schietinger, T and Schneider, O and Schumann, J and Schwartz, AJ and Seidl, R and Senyo, K and Shapkin, M and Shibuya, H and Shwartz, B and Singh, JB and Somov, A and Soni, N and Stanic, S and Staric, M and Stoeck, H and Sumiyoshi, T and Takasaki, F and Tanaka, M and Taylor, GN and Teramoto, Y and Tian, XC and Tikhomirov, I and Trabelsi, K and Tsuboyama, T and Tsukamoto, T and Uehara, S and Uglov, T and Ueno, K and Unno, Y and Uno, S and Varner, G and Villa, S and Wang, CC and Wang, CH and Wang, MZ and Watanabe, Y and Wicht, J and Won, E and Xie, QL and Yabsley, BD and Yamaguchi, A and Yamashita, Y and Yamauchi, M and Zhang, ZP and Zhilich, V and Zupanc, A and Belle Collaboration, {}},
            issn = {0031-9007},
        abstract = {The neutral B meson pair produced at the Y(4S) should exhibit a nonlocal correlation of the type discussed by Einstein, Podolsky, and Rosen. We measure this correlation using the time-dependent flavor asymmetry of semileptonic B-0 decays, which we compare with predictions from quantum mechanics and two local realistic models. The data are consistent with quantum mechanics, and inconsistent with the other models. Assuming that some B pairs disentangle to produce B-0 and (B) over tilde (0) with definite flavor, we find a decoherent fraction of 0.029 +/- 0.057, consistent with no decoherence.}
}