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Observation of an enhancement in e(+)e(-) -> gamma(1S)pi(+)pi(-), gamma(2S)pi(+)pi(-), and gamma(3S)pi(+)pi(-) production near root s=1.89 GeV
- Authors
- Chen, K. -F.; Hou, W. -S.; Adachi, I.; Aihara, H.; Aushev, T.; Bakich, A. M.; Balagura, V.; Bay, A.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, M. -C.; Chang, P.; Chao, Y.; Chen, A.; Chen, P.; Cheon, B. G.; Chiang, C. -C.; Chistov, R.; Cho, I. -S.; Choi, Y.; Dalseno, J.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Goldenzweig, P.; Ha, H.; Han, B. -Y.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hoshi, Y.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kah, D. H.; Kang, J. H.; Katayama, N.; Kiesling, C.; Kim, H. O.; Kim, Y. I.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Korpar, S.; Krizan, P.; Krokovny, P.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, S. -H.; Li, J.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; MacNaughton, J.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Pakhlova, G.; Park, H.; Park, H. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Seidl, R.; Senyo, K.; Shapkin, M.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Smerkol, P.; Sokolov, A.; Solovieva, E.; Stanic, S.; Staric, M.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yuan, C. Z.; Zhang, Z. P.; Zhulanov, V.; Zupanc, A.; Zyukova, O.
- Issue Date
- Nov-2010
- Publisher
- American Physical Society
- Citation
- Physical Review D - Particles, Fields, Gravitation and Cosmology, v.82, no.9
- Indexed
- SCI
SCIE
SCOPUS
- Volume
- 82
- Number
- 9
- ISSN
- 1550-7998
1550-2368
- Abstract
- We measure the production cross sections for e(+)e(-) -> gamma(1S)pi(+)pi(-), gamma(2S)pi(+)pi(-), and gamma(3S)pi(+)pi(-) as a function of root 5 between 10.83 GeVand 11.02 GeV. The data consist of 8.1 fb(-1) collected with the Belle detector at the KEKB e(+)e(-) collider. We observe enhanced production in all three final states that does not agree well with the conventional gamma(10860) line shape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10 888.4(-2.6)(+2.7)(stat) +/- 1.2(syst)] MeV/c(2) and a width of [30.7(-7.0)(+8.3)(stat) +/- 3.1(syst) MeV/c(2).
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Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)