Observation of a chi(c2)' candidate in gamma gamma --> DD production at belle

S Uehara; K Abe; 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 Bracko; T E Browder; M-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 Gorisek; 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 Stanic; M Staric; 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; Belle Collaboration

doi:10.1103/PhysRevLett.96.082003

Observation of a chi(c2)' candidate in gamma gamma --> DD production at belle

Phys Rev Lett. 2006 Mar 3;96(8):082003. doi: 10.1103/PhysRevLett.96.082003. Epub 2006 Mar 1.

Authors

S Uehara¹, K Abe, 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 Bracko, T E Browder, M-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 Gorisek, 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 Stanic, M Staric, 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; Belle Collaboration

Affiliation

¹ High Energy Accelerator Research Organization (KEK), Tsukuba.

PMID: 16606172
DOI: 10.1103/PhysRevLett.96.082003

Abstract

We report on a search for new resonant states in the process gamma gamma --> DD. A candidate C-even charmonium state is observed in the vicinity of 3.93 GeV/c2. The production rate and the angular distribution in the gamma gamma center-of-mass frame suggest that this state is the previously unobserved chi(c2)', the 2(3)P2 charmonium state.