Updated cross section measurement of e+e- →k+K-J /ψ and KS0 KS0 J /ψ via initial state radiation at Belle

C. P. Shen, C. Z. Yuan, P. Wang, A. Abdesselam, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, A. M. Bakich, A. Bala, A. Bobrov, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, V. Chekelian, A. ChenB. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. DoleŽal, A. Drutskoy, D. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, A. Frey, V. Gaur, S. Ganguly, R. Gillard, R. Glattauer, Y. M. Goh, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, X. H. He, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, D. Joffe, T. Julius, J. H. Kang, E. Kato, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, L. Li Gioi, J. Libby, C. Liu, Z. Q. Liu, P. Lukin, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, A. Moll, R. Mussa, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, M. Nayak, E. Nedelkovska, N. K. Nisar, S. Nishida, O. Nitoh, S. Okuno, C. W. Park, H. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, S. Ryu, T. Saito, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, G. Schnell, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Steder, T. Sumiyoshi, U. Tamponi, G. Tatishvili, Y. Teramoto, M. Uchida, Y. Unno, S. Uno, P. Urquijo, Y. Usov, C. Van Hulse, P. Vanhoefer, G. Varner, V. Vorobyev, M. N. Wagner, C. H. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, H. Yamamoto, Y. Yamashita, S. Yashchenko, Y. Yook, C. C. Zhang, Z. P. Zhang, V. Zhulanov, A. Zupanc

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Abstract

The cross sections of the processes e+e-→K+K-J/ψ and KS0KS0J/ψ are measured via initial state radiation at center-of-mass energies between the threshold and 6.0 GeV using a data sample of 980fb-1 collected with the Belle detector on or near the Υ(nS) resonances, where n=1,2,...,5. The cross sections for e+e-→K+K-J/ψ are at a few pb level and the average cross section for e+e-→KS0KS0J/ψ is 1.8±0.6(stat)±0.3(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-→K+K-J/ψ is performed.

Original languageEnglish
Article number072015
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number7
DOIs
Publication statusPublished - 2014 Apr 23

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Shen, C. P., Yuan, C. Z., Wang, P., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bala, A., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., ... Zupanc, A. (2014). Updated cross section measurement of e+e- →k+K-J /ψ and KS0 KS0 J /ψ via initial state radiation at Belle. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(7), [072015]. https://doi.org/10.1103/PhysRevD.89.072015