Measurement of γγ→pp¯ production at Belle

Belle Collaboration; CC Kuo; K Abe; I Adachi; H Aihara; Y Asano; V Aulchenko; T Aushev; S Bahinipati; AM Bakich; A Bay; I Bedny; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bračko; M-C Chang; P Chang; A Chen; WT Chen; BG Cheon; R Chistov; Y Choi; A Chuvikov; S Cole; J Dalseno; M Danilov; M Dash; A Drutskoy; S Eidelman; Y Enari; S Fratina; N Gabyshev; T Gershon; A Go; G Gokhroo; A Gorišek; J Haba; K Hayasaka; H Hayashii; M Hazumi; T Hokuue; Y Hoshi; S Hou; W-S Hou; T Iijima; A Imoto; K Inami; A Ishikawa; R Itoh; M Iwasaki; JH Kang; JS Kang; P Kapusta; H Kawai; T Kawasaki; HR Khan; H Kichimi; HJ Kim; SM Kim; P Krokovny; R Kulasiri; S Kumar; A Kuzmin; Y-J Kwon; G Leder; T Lesiak; S-W Lin; D Liventsev; J MacNaughton; G Majumder; F Mandl; T Matsumoto; A Matyja; W Mitaroff; H Miyake; R Mizuk; GR Moloney; T Mori; Y Nagasaka; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; S Ogawa; T Ohshima; S Okuno; SL Olsen; W Ostrowicz; H Palka; H Park; LS Peak; R Pestotnik; LE Piilonen; A Poluektov; H Sagawa; Y Sakai; N Sato; T Schietinger; O Schneider; K Senyo; ME Sevior; H Shibuya; B Shwartz; JB Singh; A Somov; N Soni; R Stamen; S Stanič; M Starič; A Sugiyama; T Sumiyoshi; SY Suzuki; O Tajima; F Takasaki; K Tamai; N Tamura; GN Taylor; Y Teramoto; XC Tian; T Tsukamoto; S Uehara; K Ueno; T Uglov; S Uno; G Varner; S Villa; CC Wang; CH Wang; M Watanabe; QL Xie; BD Yabsley; A Yamaguchi; Y Yamashita; M Yamauchi; Heyoung Yang; J Ying; LM Zhang; ZP Zhang; V Zhilich; D Žontar; D Zürcher

Journal article

Measurement of γγ→pp¯ production at Belle

Belle Collaboration, CC Kuo, K Abe, I Adachi, H Aihara, Y Asano, V Aulchenko, T Aushev, S Bahinipati, AM Bakich, A Bay, I Bedny, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bračko, M-C Chang, P Chang Show all

Physics Letters B | Elsevier | Published : 2005

DOI: 10.1016/j.physletb.2005.06.036

Abstract

A high precision study of the process γγ→pp¯ has been performed using a data sample of 89 fb−1 collected with the Belle detector at the KEKB e+e− collider. The cross section of pp¯ production has been measured at two-photon center-of-mass (c.m.) energies between 2.025 and 4.0 GeV and in the c.m. angular range of |cosθ∗|<0.6. Production of γγ→ηc→pp¯ is observed and the product of the two-photon width of the ηc and its branching ratio to pp¯ is determined.

University of Melbourne Researchers

Martin Sevior Author

G. N. Taylor Author

Grants

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Keywords

5106 Nuclear and Plasma Physics

5107 Particle and High Energy Physics

51 Physical Sciences