@article{oai:nagoya.repo.nii.ac.jp:00009552,
 author = {Uchida, Y. and Ozaki, H. and Kichimi, H. and Adachi, I. and Aihara, H. and Arinstein, K. and Aushev, T. and Bakich, A. M. and Balagura, V. and Barberio, E. and Bay, A. and Lee, J. S. and Lee, M. J. and Lee, S. E. and Lesiak, T. and Lin, S.-W. and Liventsev, D. and Mandl, F. and McOnie, S. and Medvedeva, T. and Mitaroff, W. and Shapkin, M. and Miyake, H. and Miyata, H. and Miyazaki, Y. and Mizuk, R. and Moloney, G. R. and Nagasaka, Y. and Nakano, E. and Nakao, M. and Nakazawa, H. and Natkaniec, Z. and Shen, C. P. and Nishida, S. and Nitoh, O. and Nozaki, T. and Ogawa, S. and Ohshima, T. and Okuno, S. and Olsen, S. L. and Pakhlov, P. and Pakhlova, G. and Park, C.W. and Shibuya, H. and Park, H. and Peak, L. S. and Pestotnik, R. and Piilonen, L. E. and Sakai, Y. and Schneider, O. and Senyo, K. and Sevior, M. E. and Shiu, J.-G. and Shwartz, B. and Singh, J. B. and Somov, A. and Stanic, S. and Staric, M. and Sumiyoshi, T. and Belous, K. and Suzuki, S.Y. and Takasaki, F. and Tanaka, M. and Taylor, G. N. and Teramoto, Y. and Tikhomirov, I. and Ueno, K. and Uglov, T. and Unno, Y. and Uno, S. and Bhardwaj, V. and Urquijo, P. and Usov, Y. and Varner, G. and Vervink, K. and Wang, C. C. and Wang, C. H. and Wang, M.-Z. and Wang, P. and Watanabe, Y. and Wedd, R. and Bitenc, U. and Won, E. and Yamashita, Y. and Yamauchi, M. and Zhang, C. C. and Zhang, Z. P. and Zhulanov, V. and Zupanc, A. and Zyukova, O. and Bondar, A. and Bozek, A. and Bracˇko, M. and Browder, T. E. and Chang, M.-C. and Chao, Y. and Chen, A. and Chen, W. T. and Cheon, B. G. and Chistov, R. and Cho, I.-S. and Choi, Y. and Dalseno, J. and Dash, M. and Drutskoy, A. and Eidelman, S. and Gabyshev, N. and Golob, B. and Ha, H. and Haba, J. and Hayasaka, K. and Hazumi, M. and Heffernan, D. and Hoshi, Y. and Hou, W.-S. and Hsiung, Y. B. and Hyun, H. J. and Ikado, K. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwabuchi, M. and Iwasaki, M. and Iwasaki, Y. and Kah, D. H. and Kaji, H. and Kang, J. H. and Katayama, N. and Kawai, H. and Kawasaki, T. and Kim, Y. J. and Kinoshita, K. and Korpar, S. and Krizˇan, P. and Krokovny, P. and Kuo, C. C. and Kuzmin, A. and Kwon, Y.-J.},
 issue = {5},
 journal = {PHYSICAL REVIEW D},
 month = {Mar},
 note = {We search for the doubly charmed baryonic decay \bar{B}^0 →Λ_c^+\bar{Λ}_c^-, in a data sample of 520×106 B\bar{B} events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We find no significant signal and set an upper limit of B(\bar{B}^0 →Λ_c^+\bar{Λ}_c^-)< 6.2×10^{-5} at 90% confidence level. The result is significantly below a naive extrapolation from B(B^-→　Ξ\begin0\c\end\bar{Λ}_c^-) assuming a simple Cabibbo-suppression factor of |V_cd/V_cs|^2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.},
 pages = {051101--051101},
 title = {Search for \bar{B}^0 →Λ_c^+\bar{Λ}_c^- decay at Belle},
 volume = {77},
 year = {2008}
}