Search for lepton-flavor-violating τ decay into a lepton and an f0 (980) meson
Miyazaki, Y.; Adachi, I.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A.M.; Bay, A.; Bedny, I.; Bitenc, U.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T.E.; Chen, A.; Cheon, B.G.; Cho, I.-S.; Choi, Y.; Dalseno, J.; Dash, M.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Goldenzweig, P.; Ha, H.; Haba, J.; Hara, K.; Hayasaka, K.; Hayashii, H.; Heffernan, D.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hyun, H.J.; Iijima, T.; Inami, K.; Ishikawa, A.; Iwasaki, M.; Iwasaki, Y.; Kah, D.H.; Kaji, H.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H.O.; Kim, Y.J.; Korpar, S.; Križan, P.; Krokovny, P.; Kumar, R.; Kuzmin, A.; Kyeong, S.-H.; Lee, J.S.; Li, J.; Liventsev, D.; Louvot, R.; Mandl, F.; McOnie, S.; Medvedeva, T.; Miyata, H.; Nagamine, T.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Park, C.W.; Park, H.; Park, H.K.; Pestotnik, R.; Piilonen, L.E.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Senyo, K.; Shapkin, M.; Shen, C.P.; Shiu, J.-G.; Shwartz, B.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tanaka, M.; Taylor, G.N.; Teramoto, Y.; Tikhomirov, I.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Usuki, Y.; Varner, G.; Vinokurova, A.; Wang, C.H.; Wang, P.; Wang, X.L.; Watanabe, Y.; Won, E.; Yabsley, B.D.; Yamashita, Y.; Yusa, Y.; Zhang, Z.P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
2009
Abstract
We search for lepton-flavor-violating τ decays into a lepton (electron or muon) and an f0 (980) meson using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B (τ- → e- f0 (980)) × B (f0 (980) → π+ π-) < 3.2 × 10- 8 and B (τ- → μ- f0 (980)) × B (f0 (980) → π+ π-) < 3.4 × 10- 8. This is the first search performed for these modes. © 2009 Elsevier B.V.
Details
Title
Search for lepton-flavor-violating τ decay into a lepton and an f0 (980) meson
Author(s)
Miyazaki, Y. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Aushev, T. ; Bakich, A.M. ; Bay, A. ; Bedny, I. ; Bitenc, U. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T.E. ; Chen, A. ; Cheon, B.G. ; Cho, I.-S. ; Choi, Y. ; Dalseno, J. ; Dash, M. ; Drutskoy, A. ; Eidelman, S. ; Epifanov, D. ; Gabyshev, N. ; Goldenzweig, P. ; Ha, H. ; Haba, J. ; Hara, K. ; Hayasaka, K. ; Hayashii, H. ; Heffernan, D. ; Horii, Y. ; Hoshi, Y. ; Hou, W.-S. ; Hyun, H.J. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Iwasaki, M. ; Iwasaki, Y. ; Kah, D.H. ; Kaji, H. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, H.O. ; Kim, Y.J. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kumar, R. ; Kuzmin, A. ; Kyeong, S.-H. ; Lee, J.S. ; Li, J. ; Liventsev, D. ; Louvot, R. ; Mandl, F. ; McOnie, S. ; Medvedeva, T. ; Miyata, H. ; Nagamine, T. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Park, C.W. ; Park, H. ; Park, H.K. ; Pestotnik, R. ; Piilonen, L.E. ; Poluektov, A. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Senyo, K. ; Shapkin, M. ; Shen, C.P. ; Shiu, J.-G. ; Shwartz, B. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tanaka, M. ; Taylor, G.N. ; Teramoto, Y. ; Tikhomirov, I. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Usuki, Y. ; Varner, G. ; Vinokurova, A. ; Wang, C.H. ; Wang, P. ; Wang, X.L. ; Watanabe, Y. ; Won, E. ; Yabsley, B.D. ; Yamashita, Y. ; Yusa, Y. ; Zhang, Z.P. ; Zhilich, V. ; Zhulanov, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O.
Published in
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
672
Issue
4-5
Pages
317-322
Date
2009
ISSN
03702693
Keywords
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Laboratories
LPHE
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Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
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Work produced at EPFL
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Peer-reviewed publications
Work produced at EPFL
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Record creation date
2010-11-05