Observation of a charmoniumlike enhancement in the gammagamma-->omega(J)/psi process

S Uehara; T Aushev; A M Bakich; K Belous; V Bhardwaj; M Bischofberger; M Bracko; T E Browder; P Chang; A Chen; P Chen; B G Cheon; C-C Chiang; I-S Cho; S-K Choi; Y Choi; J Dalseno; A Drutskoy; S Eidelman; D Epifanov; M Feindt; N Gabyshev; H Ha; J Haba; K Hayasaka; H Hayashii; Y Hoshi; W-S Hou; Y B Hsiung; H J Hyun; K Inami; R Itoh; M Iwabuchi; M Iwasaki; Y Iwasaki; N J Joshi; J H Kang; T Kawasaki; C Kiesling; H J Kim; J H Kim; Y I Kim; Y J Kim; B R Ko; P Kodys; S Korpar; P Krizan; P Krokovny; T Kumita; A Kuzmin; Y-J Kwon; S-H Kyeong; J S Lange; M J Lee; S-H Lee; J Li; C Liu; Y Liu; D Liventsev; R Louvot; A Matyja; S McOnie; K Miyabayashi; H Miyata; Y Miyazaki; R Mizuk; R Mussa; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; S Ogawa; T Ohshima; S Okuno; S L Olsen; P Pakhlov; G Pakhlova; C W Park; H Park; H K Park; R Pestotnik; M Petric; L E Piilonen; M Röhrken; S Ryu; H Sahoo; Y Sakai; O Schneider; C Schwanda; M E Sevior; M Shapkin; C P Shen; J-G Shiu; B Shwartz; J B Singh; P Smerkol; E Solovieva; M Staric; Y Teramoto; K Trabelsi; Y Unno; S Uno; P Urquijo; G Varner; K Vervink; C H Wang; P Wang; Y Watanabe; R Wedd; E Won; B D Yabsley; Y Yamashita; C Z Yuan; C C Zhang; T Zivko; O Zyukova; Belle Collaboration

doi:10.1103/PhysRevLett.104.092001

Observation of a charmoniumlike enhancement in the gammagamma-->omega(J)/psi process

Phys Rev Lett. 2010 Mar 5;104(9):092001. doi: 10.1103/PhysRevLett.104.092001. Epub 2010 Mar 5.

Authors

S Uehara¹, T Aushev, A M Bakich, K Belous, V Bhardwaj, M Bischofberger, M Bracko, T E Browder, P Chang, A Chen, P Chen, B G Cheon, C-C Chiang, I-S Cho, S-K Choi, Y Choi, J Dalseno, A Drutskoy, S Eidelman, D Epifanov, M Feindt, N Gabyshev, H Ha, J Haba, K Hayasaka, H Hayashii, Y Hoshi, W-S Hou, Y B Hsiung, H J Hyun, K Inami, R Itoh, M Iwabuchi, M Iwasaki, Y Iwasaki, N J Joshi, J H Kang, T Kawasaki, C Kiesling, H J Kim, J H Kim, Y I Kim, Y J Kim, B R Ko, P Kodys, S Korpar, P Krizan, P Krokovny, T Kumita, A Kuzmin, Y-J Kwon, S-H Kyeong, J S Lange, M J Lee, S-H Lee, J Li, C Liu, Y Liu, D Liventsev, R Louvot, A Matyja, S McOnie, K Miyabayashi, H Miyata, Y Miyazaki, R Mizuk, R Mussa, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, S Ogawa, T Ohshima, S Okuno, S L Olsen, P Pakhlov, G Pakhlova, C W Park, H Park, H K Park, R Pestotnik, M Petric, L E Piilonen, M Röhrken, S Ryu, H Sahoo, Y Sakai, O Schneider, C Schwanda, M E Sevior, M Shapkin, C P Shen, J-G Shiu, B Shwartz, J B Singh, P Smerkol, E Solovieva, M Staric, Y Teramoto, K Trabelsi, Y Unno, S Uno, P Urquijo, G Varner, K Vervink, C H Wang, P Wang, Y Watanabe, R Wedd, E Won, B D Yabsley, Y Yamashita, C Z Yuan, C C Zhang, T Zivko, O Zyukova; Belle Collaboration

Affiliation

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

PMID: 20366981
DOI: 10.1103/PhysRevLett.104.092001

Abstract

We report the results of a search for a charmoniumlike state produced in the process gammagamma-->omegaJ/psi in the 3.9-4.2 GeV/c{2} mass region. We observe a significant enhancement, which is well described by a resonant shape with mass M=(3915+/-3+/-2) MeV/c{2} and total width Gamma=(17+/-10+/-3) MeV. This enhancement may be related to one or more of the three charmoniumlike states so far reported in the 3.90-3.95 GeV/c{2} mass region.