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Evidence for a New Resonance and Search for the Y(4140) in the gamma gamma -> phi J/psi Process
- Authors
- Shen, C. P.; Yuan, C. Z.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chang, P.; Chen, A.; Chen, P.; Cheon, B. G.; Chiang, C. -C.; Cho, I. -S.; Choi, Y.; Dalseno, J.; Das, A.; Dolezal, Z.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Han, B. -Y.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Itoh, R.; Iwabuchi, M.; Iwasaki, M.; Iwasaki, Y.; Joshi, N. J.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. H.; Kim, S. K.; Kim, Y. I.; Kim, Y. J.; Ko, B. R.; Kodys, P.; Korpar, S.; Kreps, M.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, M. J.; Lee, S. -H.; Li, J.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Roehrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Smerkol, P.; Sokolov, A.; Solovieva, E.; Staric, M.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Vervink, K.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wedd, R.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Zhang, C. C.; Zhang, Z. P.; Zivko, T.; Zyukova, O.
- Issue Date
- 19-Mar-2010
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.104, no.11
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 104
- Number
- 11
- ISSN
- 0031-9007
1079-7114
- Abstract
- The process gamma gamma -> phi J/psi is measured using a data sample of 825 fb(-1) collected with the Belle detector. A narrow peak of 8:8(-3.2)(+4.2) events, with a significance of 3.2 standard deviations including systematic uncertainty, is observed. The mass and natural width of the structure [named X(4350)] are measured to be [4350.6(-5.1)(+4.6)(stat) +/- 0.7(syst)] MeV/c(2) and [13(-9)(+18)(stat) +/- 4(syst)] MeV, respectively. The product of its two-photon decay width and branching fraction to phi J/psi is 6.7(-2.4)(+3.2) (stat) +/- 1.1(syst)] eV for J(P) = 0(+), or [1.5(-0.6)(+0.7) (stat) +/- 0.3 (syst)]eV for J(P) = 2(+). No signal for the Y(4140) ->phi J/psi structure reported by the CDF Collaboration in B -> K+ phi J/psi decays is observed, and limits of Gamma(gamma gamma) (Y(4140))B(Y(4140) -> phi J/psi) < 41 eV for J(P) = 0(+) or <6.0 eV for J(P) = 2(+) are determined at the 90% C. L. This disfavors the scenario in which the Y(4140) is a D-s*D-+(s)*(-) molecule.
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Related Researcher
- Won, Eun il
- College of Science (Department of Physics)