Journal article
Authors list: Chen, K. -F.; Hou, W. -S.; Shapkin, M.; Sokolov, A.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Bay, A.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Chen, W. T.; Chistov, R.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kah, D. H.; Kang, J. H.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. O.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krizan, P.; Krokovny, P.; Kumar, R.; Kuo, C. C.; Kwon, Y. -J.; Lange, J. S.; Lee, J. S.; Lee, M. J.; Lesiak, T.; Limosani, A.; Lin, S. -W.; Liu, Y.; Liventsev, D.; Mandl, F.; McOnie, S.; Medvedeva, T.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Schneider, O.; Schuemann, J.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shen, C. P.; Shibuya, H.; Shiu, J. -G.; Shwartz, B.; Somov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Usov, Y.; Varner, G.; Vervink, K.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zupanc, A.
Publication year: 2008
Journal: Physical Review Letters
Volume number: 100
Issue number: 11
ISSN: 0031-9007
eISSN: 1079-7114
DOI Link: https://doi.org/10.1103/PhysRevLett.100.112001
Publisher: American Physical Society
Abstract:
We report the first observation of e(+)e(-) -> Y(1S)pi(+)pi(-), Upsilon(2S)pi(+)pi(-), and first evidence for e(+)e(-) -> Y(3S)pi(+)pi(-), Y(1S)K+K-, near the peak of the Y(5S) resonance at root s similar to 10.87 GeV. The results are based on a data sample of 21.7 fb(-1) collected with the Belle detector at the KEKB e(+)e(-) collider. Attributing the signals to the Upsilon(5S) resonance, the partial widths Gamma(Y(5S) -> Y(1S)pi(+)pi(-)) = 0.59 +/- 0.04(stat)+/- 0.09(syst) MeV and Gamma(Y(5S) -> Y(2S)pi(+)pi(-)) = 0.85 +/- 0.07(stat)+/- 0.16(syst) MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Y resonances.
Citation Styles
Harvard Citation style: Chen, K., Hou, W., Shapkin, M., Sokolov, A., Adachi, I., Aihara, H., et al. (2008) Observation of anomalous Y(1S)π+π- and Y(2S)π+π- production near the Y(5S) resonance, Physical Review Letters, 100(11), Article 112001. https://doi.org/10.1103/PhysRevLett.100.112001
APA Citation style: Chen, K., Hou, W., Shapkin, M., Sokolov, A., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A., Balagura, V., Bay, A., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bracko, M., Brodzicka, J., ...Zupanc, A. (2008). Observation of anomalous Y(1S)π+π- and Y(2S)π+π- production near the Y(5S) resonance. Physical Review Letters. 100(11), Article 112001. https://doi.org/10.1103/PhysRevLett.100.112001
Keywords
DECAY; HADRONIC TRANSITIONS
