Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

Y. Miyazaki, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bondar, M. Bračko, T. E. Browder, P. Chang, A. Chen, B. G. Cheon, I. S. Cho, Y. ChoiJ. Dalseno, M. Dash, W. Dungel, S. Eidelman, D. Epifanov, M. Feindt, N. Gabyshev, A. Garmash, P. Goldenzweig, H. Ha, J. Haba, K. Hara, Y. Hasegawa, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, T. Julius, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. O. Kim, J. H. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, B. R. Ko, S. Korpar, P. Križan, P. Krokovny, R. Kumar, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, S. H. Lee, T. Lesiak, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, V. Shebalin, J. G. Shiu, B. Shwartz, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, A. Vinokurova, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

研究成果: 雜誌貢獻期刊論文同行評審

17 引文 斯高帕斯(Scopus)

摘要

We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4 - 8.8) × 10- 8 for τ → e h h, and (3.3 - 16) × 10- 8 for τ → μ h h processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.

原文???core.languages.en_GB???
頁(從 - 到)355-362
頁數8
期刊Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
682
發行號4-5
DOIs
出版狀態已出版 - 4 1月 2010

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