A study of γγ→KS0KS0 production at energies from 2.4 to 4.0 GeV at Belle

Belle Collaboration; WT Chen; K Abe; K Abe; I Adachi; H Aihara; D Anipko; V Aulchenko; AM Bakich; E Barberio; A Bay; I Bedny; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bračko; TE Browder; M-C Chang; P Chang; Y Chao; A Chen; BG Cheon; R Chistov; Y Choi; YK Choi; J Dalseno; M Dash; A Drutskoy; S Eidelman; D Epifanov; A Go; H Ha; M Hazumi; D Heffernan; T Higuchi; T Hokuue; Y Hoshi; W-S Hou; T Iijima; A Imoto; K Inami; A Ishikawa; R Itoh; M Iwasaki; H Kaji; JH Kang; P Kapusta; N Katayama; H Kawai; T Kawasaki; H Kichimi; HO Kim; YJ Kim; S Korpar; P Križan; P Krokovny; R Kulasiri; R Kumar; CC Kuo; A Kuzmin; Y-J Kwon; SE Lee; T Lesiak; S-W Lin; D Liventsev; G Majumder; F Mandl; T Matsumoto; A Matyja; S McOnie; T Medvedeva; H Miyata; Y Miyazaki; R Mizuk; GR Moloney; T Mori; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; T Nozaki; S Ogawa; T Ohshima; S Okuno; SL Olsen; Y Onuki; H Ozaki; P Pakhlov; G Pakhlova; H Palka; CW Park; R Pestotnik; LE Piilonen; H Sahoo; Y Sakai; N Satoyama; T Schietinger; O Schneider; J Schümann; K Senyo; ME Sevior; M Shapkin; H Shibuya; B Shwartz; JB Singh; A Sokolov; A Somov; N Soni; S Stanič; M Starič; H Stoeck; SY Suzuki; F Takasaki; K Tamai; M Tanaka; GN Taylor; Y Teramoto; XC Tian; I Tikhomirov; T Tsukamoto; S Uehara; K Ueno; T Uglov; Y Unno; S Uno; Y Usov; G Varner; K Vervink; S Villa; CC Wang; CH Wang; M-Z Wang; Y Watanabe; E Won; BD Yabsley; A Yamaguchi; Y Yamashita; M Yamauchi; CC Zhang; ZP Zhang; V Zhilich; A Zupanc

Journal article

A study of γγ→KS0KS0 production at energies from 2.4 to 4.0 GeV at Belle

Belle Collaboration, WT Chen, K Abe, K Abe, I Adachi, H Aihara, D Anipko, V Aulchenko, AM Bakich, E Barberio, A Bay, I Bedny, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bračko, TE Browder, M-C Chang Show all

Physics Letters B | Elsevier | Published : 2007

DOI: 10.1016/j.physletb.2007.05.059

Abstract

KS0KS0 production in two-photon collisions has been studied using a 397.6 fb−1 data sample collected with the Belle detector at the KEKB e+e− collider. For the first time the cross sections are measured in the two-photon center-of-mass energy range between 2.4 GeV and 4.0 GeV and angular range |cosθ∗|<0.6. Combining the results with measurements of γγ→K+K− from Belle, we observe that the cross section ratio σ(KS0KS0)/σ(K+K−) decreases from ∼0.13 to ∼0.01 with increasing energy. Signals for the χc0 and χc2 charmonium states are also observed.

University of Melbourne Researchers

Elisabetta Barberio Author

Martin Sevior Author

G. N. Taylor Author

Grants

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Keywords

5106 Nuclear and Plasma Physics

51 Physical Sciences

5107 Particle and High Energy Physics