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Search for double charmonium decays of the P-wave spin-triplet bottomonium states
- Shen, C. P.;
- Yuan, C. Z.;
- Iijima, T.;
- Adachi, I.;
- Aihara, H.;
- ... Cheon, Byung Gu;
- 외 136명
WEB OF SCIENCE
10SCOPUS
14초록
Using a sample of 158 x 10(6) Y(2S) events collected with the Belle detector, we search for the first time for double-charmonium decays of the P-wave spin-triplet bottomonium states (Y(2S) -> gamma chi(bJ), chi(bJ) -> J/psi J/psi, J/psi psi', psi'psi' for J 0, 1, and 2). No significant chi(bJ) signal is observed in the double-charmonium mass spectra, and we obtain the following upper limits: B(chi(bJ) -> J/psi J/psi) < 7.1 x 10(-5), 2.7 x 10(-5), 4.5 x 10(-5), B(chi(bJ) -> J/psi psi') < 1.2 x 10(-4), 1. 7 x 10(-5), 4.9 x 10(-5), B(chi(bJ) -> psi'psi') < 3.1 x 10(-5), 6.2 x 10(-5), 1.6 x 10(-5) for J = 0, 1, and 2, respectively, at the 90% confidence level. These limits are significantly lower than the central values (with uncertainties of 50% to 70%) predicted using the light cone formalism but are consistent with calculations using the nonrelativistic QCD (NRQCD) factorization approach.
키워드
- 제목
- Search for double charmonium decays of the P-wave spin-triplet bottomonium states
- 저자
- Shen, C. P.; Yuan, C. Z.; Iijima, T.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bhuyan, B.; Bischofberger, M.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chen, A.; Cheon, Byung Gu; Chilikin, K.; Chistov, R.; Cho, I. -S.; Cho, K.; Choi, S. -K.; Choi, Y.; Dalseno, J.; Drasal, Z.; Drutskoy, A.; Eidelman, S.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y. M.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hyun, H. J.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Ko, B. R.; Koblitz, S.; Kodys, P.; Korpar, S.; Krizan, P.; Krokovny, P.; Kumita, T.; Kwon, Y. -J.; Lange, J. S.; Lee, S. -H.; Li, J.; Libby, J.; Lim, C. -L.; Liu, C.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Pakhlova, G.; Park, C. W.; Park, H. K.; Pedlar, T. K.; Petric, M.; Piilonen, L. E.; Poluektov, A.; Ritter, M.; Roehrken, M.; Sahoo, H.; Sakai, Y.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Seon, O.; Shapkin, M.; Shibata, T. -A.; Shiu, J. -G.; Sibidanov, A.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y. -S.; Solovieva, E.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Won, E.; Yamashita, Y.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
- 발행일
- 2012-04
- 유형
- Article
- 권
- 85
- 호
- 7
- 페이지
- 1 ~ 7