Measurement of e(+)e(-) -> pi(+)pi(-)psi(2S) via initial state radiation at Belle

  • Wang, X. L.
  • Yuan, C. Z.
  • Shen, C. P.
  • Wang, P.
  • Abdesselam, A.
  • ... Cheon, Byung Gu
  • 외 149명
Citations

WEB OF SCIENCE

136
Citations

SCOPUS

165

초록

We report measurement of the cross section of e(+)e(-) -> pi(+)pi(-)psi(2S) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980 fb(-1) data sample recorded with the Belle detector. The properties of the Y(4360) and Y(4660) states are determined. Fitting the mass spectrum of pi(+)pi(-)psi(2S) with two coherent Breit-Wigner functions, we find two solutions with identical mass and width but different couplings to electron-positron pairs: M-Y(4360) = (4347 +/- 6 +/- 3) MeV/c(2), Gamma(Y(4360)) = (103 +/- 9 +/- 5) MeV, M-Y(4660) = (4652 +/- 10 +/- 8) MeV/c(2), Gamma(Y(4660)) = (68 +/- 11 +/- 1) MeV; and B[Y(4360) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4360)) = (10.9 +/- 0.6 +/- 0.7) eV and B[Y(4660) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4660)) = (8.1 +/- 1.1 +/- 0.5) eV for one solution; or B[Y(4360) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4360)) = (9.2 +/- 0.6 +/- 0.6) eV and B[Y(4660) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4660)) = (2.0 +/- 0.3 +/- 0.2) eV for the other. Here, the first errors are statistical and the second systematic. Evidence for a charged charmoniumlike structure at 4.05 GeV/c(2) is observed in the pi(+/-)psi(2S) intermediate state in the Y(4360) decays.

키워드

IDENTIFICATION
제목
Measurement of e(+)e(-) -> pi(+)pi(-)psi(2S) via initial state radiation at Belle
저자
Wang, X. L.Yuan, C. Z.Shen, C. P.Wang, P.Abdesselam, A.Adachi, I.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Ayad, R.Bakich, A. M.Bansal, V.Bhuyan, B.Bobrov, A.Bonvicini, G.Bracko, M.Browder, T. E.Cervenkov, D.Chang, P.Chekelian, V.Chen, A.Cheon, Byung GuChilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Dalseno, J.Danilov, M.Dolezal, Z.Drasal, Z.Drutskoy, A.Dutta, K.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Gaur, V.Garmash, A.Getzkow, D.Gillard, R.Goh, Y. M.Haba, J.Hayasaka, K.Hayashii, H.He, X. H.Hou, W. -S.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, Y.Joffe, D.Julius, T.Kang, K. H.Kato, E.Kawasaki, T.Kiesling, C.Kim, D. Y.Kim, H. J.Kim, J. B.Kim, J. H.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Lewis, P.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Moll, A.Mori, T.Mussa, R.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Rostomyan, A.Ryu, S.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Semmler, D.Senyo, K.Shebalin, V.Shibata, T. -A.Shiu, J. -G.Sibidanov, A.Simon, F.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Steder, M.Sumiyoshi, T.Tamponi, U.Tanida, K.Tatishvili, G.Teramoto, Y.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Wagner, M. N.Watanabe, Y.Won, E.Yashchenko, S.Yusa, Y.Zhang, Z. P.Zhilich, V.Zupanc, A.
DOI
10.1103/PhysRevD.91.112007
발행일
2015-06
유형
Article
저널명
Physical Review d
91
11
페이지
1 ~ 15

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