Observation of a χc2′ candidate in γγ→DD̄ production at belle

S. Uehara, K. Abe, I. Adachi, H. Aihara, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T. E. BrowderM. C. Chang, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, J. Dragic, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, A. Gorišek, H. C. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, Y. Hoshi, S. Hou, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. M. Kim, S. Korpar, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, P. Pakhlov, C. W. Park, H. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, N. Sato, N. Satoyama, T. Schietinger, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, X. C. Tian, K. Trabelsi, T. Tsukamoto, T. Uglov, K. Ueno, S. Uno, P. Urquijo, Y. Usov, G. Varner, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, M. Yamauchi, J. Ying, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich

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235 Citations (Scopus)

Abstract

We report on a search for new resonant states in the process γγ→DD̄. A candidate C-even charmonium state is observed in the vicinity of 3.93GeV/c2. The production rate and the angular distribution in the γγ center-of-mass frame suggest that this state is the previously unobserved χc2′, the 2P23 charmonium state.

Original languageEnglish
Article number082003
JournalPhysical review letters
Volume96
Issue number8
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Uehara, S., Abe, K., Adachi, I., Aihara, H., Arinstein, K., Asano, Y., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bedny, I., Belous, K., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Bračko, M., ... Zhilich, V. (2006). Observation of a χc2′ candidate in γγ→DD̄ production at belle. Physical review letters, 96(8), [082003]. https://doi.org/10.1103/PhysRevLett.96.082003