A search for the rare leptonic decays B+ → μ+ νμ and B+ → e+ νe

N. Satoyama, K. Abe, I. Adachi, H. Aihara, D. Anipko, A. M. Bakich, E. Barberio, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. Chang, A. Chen, W. T. Chen, B. G. CheonR. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, H. Ha, J. Haba, Y. Hasegawa, K. Hayasaka, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, M. J. Lee, T. Lesiak, A. Limosani, S. W. Lin, D. Liventsev, G. Majumder, T. Matsumoto, S. McOnie, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, T. Nagamine, I. Nakamura, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, K. Sumisawa, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, S. Uno, P. Urquijo, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, Y. Watanabe, R. Wedd, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, A. Zupanc

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Abstract

We present a search for the decays B+ → μ+ νμ and B+ → e+ νe in a 253 fb-1 data sample collected at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB asymmetric-energy B factory. We find no significant evidence for a signal and set 90% confidence level upper limits of B (B+ → μ+ νμ) < 1.7 × 10-6 and B (B+ → e+ νe) < 9.8 × 10-7.

Original languageEnglish
Pages (from-to)67-73
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume647
Issue number2-3
DOIs
Publication statusPublished - 2007 Apr 5

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Satoyama, N., Abe, K., Adachi, I., Aihara, H., Anipko, D., Bakich, A. M., Barberio, E., Bedny, I., Belous, K., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., Chang, P., Chen, A., Chen, W. T., ... Zupanc, A. (2007). A search for the rare leptonic decays B+ → μ+ νμ and B+ → e+ νe. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 647(2-3), 67-73. https://doi.org/10.1016/j.physletb.2007.01.068