Journal article

Observation of two resonant structures in e+e-→π+π-ψ(2S) via initial-state radiation at Belle


Authors listWang, X. L.; Yuan, C. Z.; Shen, C. P.; Wang, P.; Adachi, I.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A. M.; Barberio, E.; Bedny, I.; Bhardwaj, V.; Bitenc, U.; Blyth, S.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chen, A.; Chen, K.-F.; Cheon, B. G.; Chiang, C.-C.; Chistov, R.; Cho, I.-S.; Choi, S.-K.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Go, A.; Gokhroo, G.; Ha, H.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, W.-S.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, Y.; Kah, D. H.; Kang, J. H.; 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.; Kuzmin, A.; Lange, J. S.; Lee, J. S.; Lee, M. J.; Lee, S. E.; Lesiak, T.; Limosani, A.; Lin, S.-W.; Liu, Y.; Liventsev, D.; Mandl, F.; McOnie, S.; Medvedeva, T.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Mizuk, R.; Mori, T.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Noguchi, S.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Sekiya, A.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shiu, J.-G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Somov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tikhomirov, I.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Villa, S.; Vinokurova, A.; Wang, C. C.; Wang, C. H.; Watanabe, Y.; Won, E.; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

Publication year2007

JournalPhysical Review Letters

Volume number99

Issue number14

ISSN0031-9007

DOI Linkhttps://doi.org/10.1103/PhysRevLett.99.142002

PublisherAmerican Physical Society


Abstract
The cross section for e(+)e(-)->pi(+)pi(-)psi(2S) between threshold and root s=5.5 GeV is measured using 673 fb(-1) of data on and off the Upsilon(4S) resonance collected with the Belle detector at KEKB. Two resonant structures are observed in the pi(+)pi(-)psi(2S) invariant-mass distribution, one at 4361 +/- 9 +/- 9 MeV/c(2) with a width of 74 +/- 15 +/- 10 MeV/c(2), and another at 4664 +/- 11 +/- 5 MeV/c(2) with a width of 48 +/- 15 +/- 3 MeV/c(2), if the mass spectrum is parametrized with the coherent sum of two Breit-Wigner functions. These values do not match those of any of the known charmonium states.



Citation Styles

Harvard Citation styleWang, X., Yuan, C., Shen, C., Wang, P., Adachi, I., Aihara, H., et al. (2007) Observation of two resonant structures in e+e-→π+π-ψ(2S) via initial-state radiation at Belle, Physical Review Letters, 99(14), Article 142002. https://doi.org/10.1103/PhysRevLett.99.142002

APA Citation styleWang, X., Yuan, C., Shen, C., Wang, P., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Bakich, A., Barberio, E., Bedny, I., Bhardwaj, V., Bitenc, U., Blyth, S., Bondar, A., Bozek, A., Bracko, M., Brodzicka, J., Browder, T., ...Zupanc, A. (2007). Observation of two resonant structures in e+e-→π+π-ψ(2S) via initial-state radiation at Belle. Physical Review Letters. 99(14), Article 142002. https://doi.org/10.1103/PhysRevLett.99.142002



Keywords


ANNIHILATIONCROSS-SECTIONMESONS

Last updated on 2025-02-04 at 03:41