Observation of B 0 → D * − τ + ν τ Decay at Belle
Year: 2007
Type: article
Abstract: We report an observation of the decay ${B}^{0}\ensuremath{\rightarrow}{D}^{*\ensuremath{-}}{\ensuremath{\tau}}^{+}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ in a data sample containing $535\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We find a signal with a significance of $5.2\ensuremath{\sigma}$ and measure the branching fraction $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{D}^{*\ensuremath{-}}{\ensuremath{\tau}}^{+}{\ensuremath{\nu}}_{\ensuremath{\tau}})=\mathbf{(}{2.02}_{\ensuremath{-}0.37}^{+0.40}(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.37(\mathrm{syst})\mathbf{)}%$. This is the first observation of an exclusive $B$ decay with a $b\ensuremath{\rightarrow}c\ensuremath{\tau}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ transition.
Source: Physical Review Letters
Authors: A. Matyja, M. Rozanska, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M.-C. Chang, P. Chang, A. Chen, K.-F. Chen, B. G. Cheon, R. Chistov, I.-S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, W.-S. Hou, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, Y. Iwasaki, H. Kaji, S. Kajiwara, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, Y.-J. Kwon, J. S. Lee, S. E. Lee, T. Lesiak, S.-W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, Y. Nagasaka, I. Nakamura, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J.-G. Shiu, J. B. Singh, A. Sokolov, A. Somov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, P. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, A. Zupanc
Institutions: Institute of Nuclear Physics, Polish Academy of Sciences, Polish Academy of Sciences, High Energy Accelerator Research Organization, The University of Tokyo, Budker Institute of Nuclear Physics, Institute for Theoretical and Experimental Physics, École Polytechnique Fédérale de Lausanne, University of Cincinnati, The University of Sydney, The University of Melbourne, Panjab University, Jožef Stefan Institute, University of Maribor, University of Hawaiʻi at Mānoa, University of Hawaii System, Fu Jen Catholic University, National Taiwan University, National Central University, Hanyang University, Yonsei University, Sungkyunkwan University, Virginia Tech, University of Ljubljana, Korea University, The University of Osaka, Nagoya University, Tohoku Gakuin University, Kyungpook National University, Tokyo Institute of Technology, Chiba University, Niigata University, The Graduate University for Advanced Studies, SOKENDAI, Seoul National University, Austrian Academy of Sciences, Institute of High Energy Physics, Nara Women's University, Hiroshima Institute of Technology, Tokyo University of Agriculture and Technology, Toho University, Kanagawa University, Institute for High Energy Physics, Chinese Academy of Sciences, Institute of High Energy Physics, University of Nova Gorica, Tokyo Metropolitan University, Osaka City University, National United University, Tohoku University, Nippon Dental University, University of Science and Technology of China
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: U.S. Department of Energy, Department of Science and Technology, Ministry of Science and Technology, India, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, National Natural Science Foundation of China, National Science Council, Korea Science and Engineering Foundation, Javna Agencija za Raziskovalno Dejavnost RS, Ministry of Education, India, Ministry of Education and Human Resources Development, Japan Society for the Promotion of Science
OpenAlex ID: W203209958