Sokolov, A.Shapkin, M.Aihara, H.Arinstein, K.Aushev, T.Bakich, A.M.Barberio, E.Bay, A.Belous, K.Bhardwaj, V.Bondar, A.Bračko, M.Browder, T.E.Chang, M.-C.Chang, P.Chen, A.Chen, K.-F.Cheon, B.G.Chiang, C.-C.Chistov, R.Cho, I.-S.Choi, Y.Dash, M.Drutskoy, A.Dungel, W.Eidelman, S.Epifanov, D.Gabyshev, N.Goldenzweig, P.Ha, H.Haba, J.Han, B.-Y.Hayashii, H.Hazumi, M.Horii, Y.Hoshi, Y.Hou, W.-S.Hsiung, Y.B.Hyun, H.J.Iijima, T.Inami, K.Ishikawa, A.Ishino, H.Iwasaki, Y.Joshi, N.J.Kah, D.H.Kaji, H.Kang, J.H.Kawai, H.Kawasaki, T.Kichimi, H.Kim, H.J.Kim, H.O.Kim, S.K.Kim, Y.I.Kim, Y.J.Kinoshita, K.Ko, B.R.Korpar, S.Križan, P.Krokovny, P.Kuzmin, A.Kwon, Y.-J.Kyeong, S.-H.Lange, J.S.Lee, M.J.Lee, S.E.Lesiak, T.Li, J.Limosani, A.Lin, S.-W.Liu, Y.Liventsev, D.Louvot, R.Mandl, F.Matyja, A.McOnie, S.Miyata, H.Miyazaki, Y.Mizuk, R.Mori, T.Nagasaka, Y.Nakano, E.Nakao, M.Nishida, S.Nitoh, O.Noguchi, S.Ogawa, S.Ohshima, T.Okuno, S.Ozaki, H.Pakhlov, P.Pakhlova, G.Park, C.W.Park, H.Park, H.K.Park, K.S.Pestotnik, R.Piilonen, L.E.Poluektov, A.Sahoo, H.Sakai, Y.Schneider, O.Schwanda, C.Sekiya, A.Senyo, K.Sevior, M.E.Shen, C.P.Shiu, J.-G.Shwartz, B.Singh, J.B.Stanič, S.Starič, M.Sumiyoshi, T.Tanaka, M.Taylor, G.N.Teramoto, Y.Tsuboyama, T.Uehara, S.Uglov, T.Unno, Y.Uno, S.Usov, Y.Varner, G.Varvell, K.E.Vervink, K.Vinokurova, A.Wang, C.H.Wang, M.-Z.Wang, P.Wang, X.L.Watanabe, Y.Wedd, R.Won, E.Yabsley, B.D.Yamashita, Y.Yuan, C.Z.Zhang, Z.P.Zhilich, V.Zhulanov, V.Zivko, T.Zupanc, A.Zyukova, O.2010-11-052010-11-052010-11-05200910.1103/PhysRevD.79.0511032-s2.0-64149100648https://infoscience.epfl.ch/handle/20.500.14299/56849WOS:000264762400003We study transitions between Υ states with the emission of charged pions using 604.6fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured product branching fraction is B(Υ(4S)→Υ(1S)π+π-)×B(Υ(1S)→μ+μ-)=(2. 11±0.30(stat)±0.14(sys))×10-6 and the partial decay width is Γ(Υ(4S)→Υ(1S)π+π-)=(1.75±0.25(stat)±0. 24(sys))keV. © 2009 The American Physical Society.BelleIdentificationTransitionsKekbtext::journal::journal article::research article