Abstract
Using samples of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to KS0K+π- and charge-conjugate (c.c.) states, π+π-π0π0, and π+π-π0, and to the two-body Vector-Pseudoscalar (K*(892)0K̄0+c.c., K*(892)-K ++c.c., ωπ0, and ρπ) final states. For the first time, signals are observed in the modes Υ(1S)→KS0K+π -+c.c., π+π-π0π0, and Υ(2S)→π+π-π0π0, and evidence is found for the modes Υ(1S)→π+π-π0, K*(892)0K̄0+c.c., and Υ(2S)→KS0K +π-+c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka-suppressed bottomonium decays.
| Original language | English |
|---|---|
| Article number | 011102 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 88 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 Jul 23 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
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Measurement of exclusive Υ(1S) and Υ(2S) decays into vector-pseudoscalar final states. / Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Bakich, A. M.; Bala, A.; Bhuyan, B.; Bischofberger, M.; Bozek, A.; Bračko, M.; Browder, T. E.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I. S.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Dingfelder, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Dutta, D.; Dutta, K.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Frey, A.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Julius, T.; Kah, D. H.; Kang, J. H.; Kato, E.; Kawasaki, T.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, Y. J.; Kinoshita, K.; Klucar, J.; Ko, B. R.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kumita, T.; Kuzmin, A.; Kwon, Y. J.; Lee, S. H.; Leitner, R.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Lukin, P.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Mussa, R.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nayak, M.; Nedelkovska, E.; Ng, C.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Pakhlov, P.; Park, C. W.; Park, H.; Park, H. K.; Pedlar, T. K.; Peng, T.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Ryu, S.; Sahoo, H.; Saito, T.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Senyo, K.; Seon, O.; Shapkin, M.; Shebalin, V.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Steder, M.; Sumihama, M.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Tatishvili, G.; Teramoto, Y.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Vahsen, S. E.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vorobyev, V.; Wagner, M. N.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Won, E.; Yamamoto, H.; Yamaoka, J.; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 88, No. 1, 011102, 23.07.2013.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Measurement of exclusive Υ(1S) and Υ(2S) decays into vector-pseudoscalar final states
AU - Shen, C. P.
AU - Yuan, C. Z.
AU - Adachi, I.
AU - Aihara, H.
AU - Asner, D. M.
AU - Aulchenko, V.
AU - Bakich, A. M.
AU - Bala, A.
AU - Bhuyan, B.
AU - Bischofberger, M.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Chekelian, V.
AU - Chen, A.
AU - Chen, P.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Cho, I. S.
AU - Cho, K.
AU - Chobanova, V.
AU - Choi, Y.
AU - Cinabro, D.
AU - Dalseno, J.
AU - Danilov, M.
AU - Dingfelder, J.
AU - Doležal, Z.
AU - Drásal, Z.
AU - Drutskoy, A.
AU - Dutta, D.
AU - Dutta, K.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Farhat, H.
AU - Fast, J. E.
AU - Ferber, T.
AU - Frey, A.
AU - Gaur, V.
AU - Gabyshev, N.
AU - Ganguly, S.
AU - Gillard, R.
AU - Goh, Y. M.
AU - Golob, B.
AU - Haba, J.
AU - Hara, T.
AU - Hayasaka, K.
AU - Hayashii, H.
AU - Hoshi, Y.
AU - Hou, W. S.
AU - Hyun, H. J.
AU - Iijima, T.
AU - Ishikawa, A.
AU - Itoh, R.
AU - Iwasaki, Y.
AU - Julius, T.
AU - Kah, D. H.
AU - Kang, J. H.
AU - Kato, E.
AU - Kawasaki, T.
AU - Kiesling, C.
AU - Kim, D. Y.
AU - Kim, H. J.
AU - Kim, J. B.
AU - Kim, J. H.
AU - Kim, K. T.
AU - Kim, Y. J.
AU - Kinoshita, K.
AU - Klucar, J.
AU - Ko, B. R.
AU - Kodyš, P.
AU - Korpar, S.
AU - Križan, P.
AU - Krokovny, P.
AU - Kumita, T.
AU - Kuzmin, A.
AU - Kwon, Y. J.
AU - Lee, S. H.
AU - Leitner, R.
AU - Li, J.
AU - Li, Y.
AU - Libby, J.
AU - Liu, C.
AU - Liu, Y.
AU - Liu, Z. Q.
AU - Liventsev, D.
AU - Lukin, P.
AU - Matvienko, D.
AU - Miyabayashi, K.
AU - Miyata, H.
AU - Mohanty, G. B.
AU - Moll, A.
AU - Mori, T.
AU - Muramatsu, N.
AU - Mussa, R.
AU - Nagasaka, Y.
AU - Nakano, E.
AU - Nakao, M.
AU - Natkaniec, Z.
AU - Nayak, M.
AU - Nedelkovska, E.
AU - Ng, C.
AU - Nisar, N. K.
AU - Nishida, S.
AU - Nitoh, O.
AU - Ogawa, S.
AU - Okuno, S.
AU - Olsen, S. L.
AU - Ostrowicz, W.
AU - Pakhlov, P.
AU - Park, C. W.
AU - Park, H.
AU - Park, H. K.
AU - Pedlar, T. K.
AU - Peng, T.
AU - Pestotnik, R.
AU - Petrič, M.
AU - Piilonen, L. E.
AU - Ritter, M.
AU - Röhrken, M.
AU - Rostomyan, A.
AU - Ryu, S.
AU - Sahoo, H.
AU - Saito, T.
AU - Sakai, Y.
AU - Sandilya, S.
AU - Santelj, L.
AU - Sanuki, T.
AU - Sato, Y.
AU - Savinov, V.
AU - Schneider, O.
AU - Schnell, G.
AU - Schwanda, C.
AU - Senyo, K.
AU - Seon, O.
AU - Shapkin, M.
AU - Shebalin, V.
AU - Shibata, T. A.
AU - Shiu, J. G.
AU - Shwartz, B.
AU - Sibidanov, A.
AU - Simon, F.
AU - Smerkol, P.
AU - Sohn, Y. S.
AU - Sokolov, A.
AU - Solovieva, E.
AU - Stanič, S.
AU - Starič, M.
AU - Steder, M.
AU - Sumihama, M.
AU - Sumiyoshi, T.
AU - Tamponi, U.
AU - Tanida, K.
AU - Tatishvili, G.
AU - Teramoto, Y.
AU - Tsuboyama, T.
AU - Uchida, M.
AU - Uehara, S.
AU - Unno, Y.
AU - Uno, S.
AU - Urquijo, P.
AU - Vahsen, S. E.
AU - Van Hulse, C.
AU - Vanhoefer, P.
AU - Varner, G.
AU - Vorobyev, V.
AU - Wagner, M. N.
AU - Wang, C. H.
AU - Wang, P.
AU - Wang, X. L.
AU - Watanabe, M.
AU - Watanabe, Y.
AU - Won, E.
AU - Yamamoto, H.
AU - Yamaoka, J.
AU - Yamashita, Y.
AU - Yashchenko, S.
AU - Yook, Y.
AU - Yusa, Y.
AU - Zhang, C. C.
AU - Zhang, Z. P.
AU - Zhilich, V.
AU - Zupanc, A.
PY - 2013/7/23
Y1 - 2013/7/23
N2 - Using samples of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to KS0K+π- and charge-conjugate (c.c.) states, π+π-π0π0, and π+π-π0, and to the two-body Vector-Pseudoscalar (K*(892)0K̄0+c.c., K*(892)-K ++c.c., ωπ0, and ρπ) final states. For the first time, signals are observed in the modes Υ(1S)→KS0K+π -+c.c., π+π-π0π0, and Υ(2S)→π+π-π0π0, and evidence is found for the modes Υ(1S)→π+π-π0, K*(892)0K̄0+c.c., and Υ(2S)→KS0K +π-+c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka-suppressed bottomonium decays.
AB - Using samples of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to KS0K+π- and charge-conjugate (c.c.) states, π+π-π0π0, and π+π-π0, and to the two-body Vector-Pseudoscalar (K*(892)0K̄0+c.c., K*(892)-K ++c.c., ωπ0, and ρπ) final states. For the first time, signals are observed in the modes Υ(1S)→KS0K+π -+c.c., π+π-π0π0, and Υ(2S)→π+π-π0π0, and evidence is found for the modes Υ(1S)→π+π-π0, K*(892)0K̄0+c.c., and Υ(2S)→KS0K +π-+c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka-suppressed bottomonium decays.
UR - http://www.scopus.com/inward/record.url?scp=84881335778&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.88.011102
DO - 10.1103/PhysRevD.88.011102
M3 - Article
AN - SCOPUS:84881335778
VL - 88
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 1
M1 - 011102
ER -