Observation Of New Resonant Structures In Gamma Gamma -> Omega Phi, Phi Phi, And Omega Omega

Zuqin Liu,Chengping Shen,Chao Yuan,Toru Iijima,Ichiro Adachi,Hiroaki Aihara,David M. Asner,Vladimir M. Aulchenko,Tagir A Kh Aushev,A. M. Bakich,K. S. Belous,V. N. Bhardwaj,Bipul Bhuyan,M. Bischofberger,Alex E. Bondar,Andrzej Bozek,Marko Bračko,Thomas E. Browder,M. C. Chang,P. Chang,Augustine E. Chen,Pisin Chen,Byunggu Cheon,Ruslan N. Chistov,Insung Cho,Kwangsoo Cho,Sookyung Choi,Yoonsuk Choi,J. P. Dalseno,Z. Dolëal,Zbyněk Drásal,Simon I. Eidelman,Denis A. Epifanov,James E. Fast,V. Gaur,N. I. Gabyshev,Alexei Yu Garmash,Y. M. Goh,Junji Haba,Kiyoshi Hayasaka,Hisaki Hayashii,Y. Horii,Yoshimoto Hoshi,W. S. Hou,Y. B. Hsiung,Hyojung Hyun,Kenji Inami,Akimasa Ishikawa,Ryosuke Itoh,Masaya Iwabuchi,Yoshihito Iwasaki,Tomoko Iwashita,T. Danger Julius,Joohoon Kang,Takeo Kawasaki,Ch M. Kíesling,Hongju Kim,Hyunok Kim,Jungbae Kim,K. T. Kim,Maengjun Kim,Youngjin Kim,Byeongrok Ko,S. Koblitz,P. Kodẙ,Samo Korpar,P. Krïan,Pavel P. Krokovny,Tetsuro Kumita,A. S. Kuzmin,Youngjoon Kwon,Jens Sören Lange,Sanghoon Lee,Jaeho Li,Xiurong Li,Yanxi Li,Jim F. Libby,C. Y. Liu,D. Liventsev,Remi Louvot,Dmitry V. Matvienko,S. McOnie,Kenkichi Miyabayashi,Hitoshi Miyata,Yoshiyuki Miyazaki,Roman V. Mizuk,Gagan B. Mohanty,Andreas Moll,Tatsuo Mori,Norihito Muramatsu,Roberto Mussa,Yasushi Nagasaka,Eiichi Nakano,Mikihiko Nakao,H. Nakazawa,Chu Ng,Shohei Nishida,Kurtis Nishimura,Osamu Nitoh,Tadao Nozaki,Satoru Ogawa,Takayoshi Ohshima,Shoji Okuno,Stephen Lars Olsen,Y. Onuki,P. N. Pakhlov,Galina V. Pakhlova,C. W. Park,H. K. Park,Todd K. Pedlar,Rok Pestotnik,M. Petrič,Leo E. Piilonen,Michael W. Ritter,Markus Röhrken,Sigang Ryu,Himansu Sahoo,Kunihiro Sakai,Yoshihide Sakai,Tomoyuki Sanuki,Yutaka S. Sato,Olivier Schneider,Christoph Schwanda,Ralf Seidl,K. Senyo,Martin E. Sevior,M. M. Shapkin,V. E. Shebalin,Tatsunobu Shibata,J. G. Shiu,Boris A. Shwartz,Alexei L. Sibidanov,Frank Simon,P. Smerkol,Y. S. Sohn,Anatoli A. Sokolov,Elena N. Solovieva,Samo Stanič,Marko Starič,Takayuki Sumiyoshi,Gocha T. Tatishvili,Yoshiki Teramoto,Makoto Uchida,Sadaharu Uehara,T. Uglov,Yuuji Unno,Shoji Uno,Phillip Urquijo,Gary S. Varner,Anna Vinokurova,V. Vorobyev,Chunghsiang Wang,Pengye Wang,X. L. Wang,Masakazu Watanabe,Yoshio Watanabe,Kerry M. Williams,Eunil Won,Yousuke Yamashita,Yuki Yusa,Changchun Zhang,Ziping Zhang,Victor N. Zhilich,Vladimir V. Zhulanov

PHYSICAL REVIEW LETTERS（2012）

Cited 17|Views94

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Abstract

The processes gamma gamma -> omega phi,phi phi, and omega omega are measured using an 870 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the eta(c), chi(c0), and chi(c2) two-photon decay widths and branching fractions to omega phi,phi phi, and omega omega.

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