Observation of exclusive Y(1S) and Y(2S) decays into light hadrons

  • Shen, C. P.
  • Yuan, C. Z.
  • Iijima, T.
  • Adachi, I.
  • Aihara, H.
  • ... Cheon, B. G.
  • 외 149명
Citations

WEB OF SCIENCE

8
Citations

SCOPUS

14

초록

Using samples of 102 x 10(6) Gamma(1S) and 158 x 10(6) Gamma(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states phi K+K-, omega pi(+)pi(-) and K*(0)(892)K-pi(+), and to the two-body Vector-Tensor states (phi f'(2)(1525), omega f(2)(1270), rho a(2)(1320) and K*(0)(892)(K) over bar*(0)(2)(1430)) and Axial-vector-Pseudoscalar (K-1(1270)K-+(-), K-1(1400)K-+(-) and b(1)(1235)(+)pi(-)) states. Signals are observed for the first time in the Y(1S) -> phi K+K-, omega pi(+)pi(-), K*K-0(-)pi(+), K*K-0*(0)(2) Gamma(2S) -> phi K+K-, K*K-0(-)pi(+) decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3 sigma. The ratios of the branching fractions of Gamma(2S) and Gamma(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.

제목
Observation of exclusive Y(1S) and Y(2S) decays into light hadrons
저자
Shen, C. P.Yuan, C. Z.Iijima, T.Adachi, I.Aihara, H.Asner, D. M.Aushev, T.Bakich, A. M.Bay, A.Belous, K.Bhuyan, B.Bischofberger, M.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Chang, M. -C.Chang, P.Chen, A.Chen, P.Cheon, B. G.Chilikin, K.Chistov, R.Cho, I. -S.Cho, K.Choi, S. -K.Choi, Y.Dalseno, J.Dolezal, Z.Drasal, Z.Eidelman, S.Fast, J. E.Gaur, V.Gabyshev, N.Goh, Y. M.Golob, B.Haba, J.Hayashii, H.Horii, Y.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Inami, K.Ishikawa, A.Itoh, R.Iwabuchi, M.Iwasaki, Y.Iwashita, T.Julius, T.Kang, J. H.Kawasaki, T.Kiesling, C.Kim, B. H.Kim, H. O.Kim, J. B.Kim, J. H.Kim, M. J.Kim, Y. J.Kinoshita, K.Ko, B. R.Koblitz, S.Kodys, P.Korpar, S.Kouzes, R. T.Krizan, P.Krokovny, P.Kumar, R.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lee, S. -H.Li, J.Li, Y.Libby, J.Liu, C.Liu, Y.Liu, Z. Q.Louvot, R.McOnie, S.Miyabayashi, K.Miyata, H.Mohanty, G. B.Mohapatra, D.Moll, A.Muramatsu, N.Nakano, E.Nakao, M.Natkaniec, Z.Nishida, S.Nishimura, K.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Park, H. K.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Ritter, M.Sahoo, H.Sakai, Y.Santel, D.Sanuki, T.Sato, Y.Schneider, O.Schwanda, C.Senyo, K.Seon, O.Sevior, M. E.Shapkin, M.Shebalin, V.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Smerkol, P.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Sumihama, M.Sumiyoshi, T.Tatishvili, G.Teramoto, Y.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Vanhoefer, P.Varner, G.Wang, C. H.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Williams, K. M.Won, E.Yabsley, B. D.Yamashita, Y.Zhang, C. C.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.86.031102
발행일
2012-08
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
86
3
페이지
1 ~ 7

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