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| 題名: | Updated cross section measurement of e+e- →k+K-J /ψ and KS0 KS0 J /ψ via initial state radiation at Belle |
| 作者: | 陳鎰鋒;Sumiyoshi, T.;Joffe, D.;Stanič, Samo;Saito, T.;Sokolov, Andrey;Choi, Y.;Steder, M.;Aihara, Hiroaki;Nitoh, O.;Hou, W. S.;Hoshi, Y.;Chekelian, V.;Tatishvili, G.;Kuzmin, A.S.;Nedelkovska, E.;Park, H.;Kinoshita, K.;Miyabayashi, K.;Korpar, S.;Sakai, Y.;Chistov, R.;Fast, James E.;Hulse, C. Van;Pestotnik, R.;Kim, D. Y.;Wang, P.;Chen, A.;Nakao, M.;Adachi, I.;Cho, K.;Shapkin, M.;Kawasaki, T.;Bala, A.;Yook, Y.;Ayad, R.;Watanabe, M.;Farhat, H.;Kodys, Peter;Ritter, M.;Nishida, S.;Petrič, Marko;Lee, Sang Hoon;Said, S. Al;Dutta, D.;Rostomyan, A.;Shiu, J. G.;Miyata, H.;Kim, M. J.;Okuno, S.;Uchida, M.;Bračko, M.;Nagasaka, Yasushi;Nayak, M.;Li, J.;Itoh, R.;Shebalin, V.E.;Senyo, K.;Iijima, T.;Iwasaki, Y.;Ryu, Sunmin;Shibata, T. A.;Danilov, Mikhail;Bozek, A.;Chilikin, K.;Ko, B. R.;Kwon, Y. J.;Križan, P.;Sato, Yukinori;Ferber, Torben;Kim, H. J.;Sanuki, T.;Epifanov, D. A.;Hayasaka, K.;Hsiung, Y. B.;Choi, S. K.;Vorobyev, V.;Aulchenko, V.M.;Urquijo, Phillip;Kim, Jung-Hyun;Sevior, M. E.;Bonvicini, G.;Abdesselam, A.;Mussa, R.;Yuan, C. Z.;Starič, M.;Solovieva, E.;Glattauer, R.;Lukin, P.;Wagner, M. N.;Sibidanov, A.L.;Matvienko, D.;Zhang, C. C.;Usov, Y.;Schneider, O.;Park, C. W.;Wang, C. H.;Vanhoefer, P.;Nisar, N. K.;Seon, O.;Moll, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | ddc:530;High Energy Physics - Experiment;info:eu-repo/classification/ddc/530;Physics |
| 日期: | 2014-04-23 |
| 上傳時間: | 2026-04-23 14:47:00 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要： The cross sections of the processes $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ are measured via initial state radiation at center-of-mass energies between the threshold and 6.0~GeV using a data sample of 980~fb$^{-1}$ collected with the Belle detector on or near the $\Upsilon(nS)$ resonances, where $n=$1, 2, ..., 5. The cross sections for $e^+ e^- \to K^+ K^- J/\psi$ are at a few pb level and the average cross section for $e^+ e^- \to K_S^0K_S^0J/\psi$ is $1.8\pm 0.6 (\rm stat.)\pm 0.3 (\rm syst.)$~pb between 4.4 and 5.2~GeV. All of them are consistent with previously published results with improved precision. A search for resonant structures and associated intermediate states in the cross section of the process $e^+ e^- \to K^+ K^- J/\psi$ is performed. Comment: 14 pages, 7 figures
出版者： American Physical Society (APS)
出版日期： 2014-04-23
出處： Physical Review D, 2014-04, Vol.89
識別號： ISSN: 1550-7998
識別號： EISSN: 1550-2368
識別號： DOI: 10.1103/physrevd.89.072015 |
| 顯示於類別: | [物理學系] 期刊論文
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