Observation of two resonant structures in e(+)e(-)->pi(+)pi(-)psi(2S) via initial-state radiation at Belle

  • Wang, X. L.
  • Yuan, C. Z.
  • Shen, C. P.
  • Wang, P.
  • Adachi, I.
  • ... Cheon, Byung Gu
  • 외 141명
Citations

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395
Citations

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476

초록

The cross section for e(+)e(-)->pi(+)pi(-)psi(2S) between threshold and root s=5.5 GeV is measured using 673 fb(-1) of data on and off the Upsilon(4S) resonance collected with the Belle detector at KEKB. Two resonant structures are observed in the pi(+)pi(-)psi(2S) invariant-mass distribution, one at 4361 +/- 9 +/- 9 MeV/c(2) with a width of 74 +/- 15 +/- 10 MeV/c(2), and another at 4664 +/- 11 +/- 5 MeV/c(2) with a width of 48 +/- 15 +/- 3 MeV/c(2), if the mass spectrum is parametrized with the coherent sum of two Breit-Wigner functions. These values do not match those of any of the known charmonium states.

키워드

CROSS-SECTIONANNIHILATIONMESONS
제목
Observation of two resonant structures in e(+)e(-)->pi(+)pi(-)psi(2S) via initial-state radiation at Belle
저자
Wang, X. L.Yuan, C. Z.Shen, C. P.Wang, P.Adachi, I.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Barberio, E.Bedny, I.Bhardwaj, V.Bitenc, U.Blyth, S.Bondar, A.Bozek, A.Bracko, M.Brodzicka, J.Browder, T. E.Chang, P.Chen, A.Chen, K.-F.Cheon, Byung GuChiang, C.-C.Chistov, R.Cho, I.-S.Choi, S.-K.Choi, Y.Dalseno, J.Danilov, M.Dash, M.Drutskoy, A.Eidelman, S.Epifanov, D.Gabyshev, N.Go, A.Gokhroo, G.Ha, H.Hayasaka, K.Hayashii, H.Hazumi, M.Heffernan, D.Hoshi, Y.Hou, W.-S.Hyun, H. J.Iijima, T.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, Y.Kah, D. H.Kang, J. H.Kawai, H.Kawasaki, T.Kichimi, H.Kim, H. O.Kim, S. K.Kim, Y. J.Kinoshita, K.Korpar, S.Krizan, P.Krokovny, P.Kumar, R.Kuo, C. C.Kuzmin, A.Lange, J. S.Lee, J. S.Lee, M. J.Lee, S. E.Lesiak, T.Limosani, A.Lin, S.-W.Liu, Y.Liventsev, D.Mandl, F.McOnie, S.Medvedeva, T.Miyabayashi, K.Miyake, H.Miyata, H.Mizuk, R.Mori, T.Nakano, E.Nakao, M.Nakazawa, H.Natkaniec, Z.Nishida, S.Nitoh, O.Noguchi, S.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S. L.Ozaki, H.Pakhlov, P.Pakhlova, G.Palka, H.Park, C. W.Park, H.Park, K. S.Pestotnik, R.Piilonen, L. E.Poluektov, A.Sahoo, H.Sakai, Y.Schneider, O.Sekiya, A.Sevior, M. E.Shapkin, M.Shibuya, H.Shiu, J.-G.Shwartz, B.Singh, J. B.Sokolov, A.Somov, A.Stanic, S.Staric, M.Sumiyoshi, T.Takasaki, F.Tamai, K.Tanaka, M.Taylor, G. N.Teramoto, Y.Tikhomirov, I.Uehara, S.Ueno, K.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Varner, G.Villa, S.Vinokurova, A.Wang, C. C.Wang, C. H.Watanabe, Y.Won, E.Yabsley, B. D.Yamaguchi, A.Yamashita, Y.Yamauchi, M.Zhang, C. C.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevLett.99.142002
발행일
2007-10
유형
Article
저널명
Physical Review Letters
99
14
페이지
1 ~ 5

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