Study of B→D**lν with full reconstruction tagging

D. Liventsev, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. F. Chen, W. T. ChenB. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. W. Lin, Y. Liu, F. Mandl, S. McOnie, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, H. Shibuya, J. G. Shiu, B. Shwartz, A. Sokolov, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

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Abstract

We report a study of semileptonic B decays to P-wave D** mesons. Semileptonic decay to a D2* meson is observed for the first time and its product branching ratio is measured to be B(B+→D̄2*0 +ν)×B(D̄2*0→D-π+)=0.22±0.03(stat.)±0. 04(syst.)%. The result is obtained using fully reconstructed B tags from a data sample that contains 657×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

Original languageEnglish
Article number091503
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number9
DOIs
StatePublished - 12 May 2008

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