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Study of K-S(0) pair production in single-tag two-photon collisions

Authors
Masuda, M.Uehara, S.Watanabe, Y.Adachi, I.Ahn, J. K.Aihara, H.Al Said, S.Asner, D. M.Atmacan, H.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bansal, V.Behera, P.Berger, M.Bhardwaj, V.Bhuyan, B.Biswal, J.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Cervenkov, D.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Choi, Y.Choudhury, S.Cinabro, D.Czank, T.Dash, N.Di Carlo, S.Dolezal, Z.Drasal, Z.Dutta, D.Eidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Gelb, M.Giri, A.Goldenzweig, P.Guido, E.Haba, J.Hayasaka, K.Hayashii, H.Hedges, M. T.Hou, W-S.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jaegle, I.Jin, Y.Joo, K. K.Julius, T.Kang, K. H.Karyan, G.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, D. Y.Kim, H. J.Kim, J. B.Kim, K. T.Kim, S. H.Kodys, P.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kulasiri, R.Kuzmin, A.Kwon, Y-J.Lee, I. S.Lee, S. C.Li, L. K.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lubej, M.Luo, T.Matsuda, T.Matvienko, D.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moon, H. K.Mori, T.Mussa, R.Nakao, M.Nakazawa, H.Nanut, T.Nath, K. J.Natkaniec, Z.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Ono, H.Onuki, Y.Pakhlov, P.Pakhlova, G.Pal, B.Park, H.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Ritter, M.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Seidl, R.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T-A.Shimizu, N.Shiu, J-G.Shwartz, B.Sokolov, A.Solovieva, E.Staric, M.Strube, J. F.Sumihama, M.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Teramoto, Y.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Van Hulse, C.Varner, G.Vinokurova, A.Vorobyev, V.Vossen, A.Wang, B.Wang, C. H.Wang, M-Z.Wang, P.Wang, X. L.Watanabe, M.Widmann, E.Won, E.Ye, H.Yuan, C. Z.Yusa, Y.Zakharov, S.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.Zupanc, A.
Issue Date
13-3월-2018
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.97, no.5
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
97
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/76737
DOI
10.1103/PhysRevD.97.052003
ISSN
2470-0010
Abstract
We report a measurement of the cross section for K-S(0) pair production in single-tag two-photon collisions, gamma*gamma -> (KSKS0)-K-0, for Q(2) up to 30 GeV2, where Q(2) is the negative of the invariant mass squared of the tagged photon. The measurement covers the kinematic range 1.0 GeV < W < 2.6 GeV and vertical bar cos theta*vertical bar < 1.0 for the total energy and kaon scattering angle, respectively, in the gamma*gamma center-of-mass system. These results are based on a data sample of 759 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. For the first time, the transition form factor of the f'(2)(1525) meson is measured separately for the helicity-0, -1, and -2 components and also compared with theoretical calculations. We have derived the cross section for the process for W < 2.6 GeV from 121 signal candidate events. Finally, the gamma*gamma partial decay widths of the chi(c0) and chi(c2) mesons are measured as a function of Q(2) based on 10 candidate events in total.
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