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Measurement of the branching fraction for the decay Gamma(4S) -> Gamma(1S)pi(+) pi(-)

Authors
Sokolov, A.Shapkin, M.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Barberio, E.Bay, A.Belous, K.Bhardwaj, V.Bondar, A.Bracko, 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.Krizan, 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.Stanic, S.Staric, 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.
Issue Date
3월-2009
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.79, no.5
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
79
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120484
DOI
10.1103/PhysRevD.79.051103
ISSN
1550-7998
Abstract
We study transitions between Gamma states with the emission of charged pions using 604.6 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured product branching fraction is B(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) x B(Gamma(1S) -> mu(+)mu(-)) = (2.11 +/- 0.30(stat) +/- 0.14(sys)) x 10(-6) and the partial decay width is Gamma(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) = 1.75 +/- 0.25(stat) +/- 0.24(sys)) keV.
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