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Search for lepton-flavor-violating tau decay into a lepton and an f(0)(980) meson

Authors
Miyazaki, Y.Adachi, I.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Bay, A.Bedny, I.Bitenc, U.Bondar, A.Bozeky, A.Bracko, 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.Krizan, 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.Stanic, S.Staric, 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.
Issue Date
2-3월-2009
Publisher
ELSEVIER
Citation
PHYSICS LETTERS B, v.672, no.4-5, pp.317 - 322
Indexed
SCIE
SCOPUS
Journal Title
PHYSICS LETTERS B
Volume
672
Number
4-5
Start Page
317
End Page
322
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120446
DOI
10.1016/j.physletb.2009.01.058
ISSN
0370-2693
Abstract
We search for lepton-flavor-violating tau decays into a lepton (electron or muon) and an f(0)(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: beta(tau(-) -> e(-) f(0)(980)) x beta(f(0)(980) -> pi(+)pi(-)) < 3.2 x 10(-8) and beta(tau(-) -> mu(-) f(0)(980)) x beta(f(0)(980) -> pi(+)pi(-)) < 3.4 x 10(-8). This is the first search performed for these modes. (c) 2009 Elsevier B.V. All rights reserved.
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