Search for B-s(0) -> hh decays at the Y(5S) resonance
- Authors
- Peng, C. -C.; Chang, P.; Adachi, I.; Aihara, H.; Aushev, T.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Belous, K.; Bhardwaj, V.; Bondar, A.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chao, Y.; Chen, A.; Chen, K. -F.; Chen, P.; Cheon, B. G.; Chiang, C. -C.; Chistov, R.; Cho, I. -S.; Choi, Y.; Dalseno, J.; Danilov, M.; Das, A.; Dash, M.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Gabyshev, N.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hyun, H. J.; Iijima, T.; Inami, K.; Itoh, R.; Iwabuchi, M.; Iwasaki, M.; Iwasaki, Y.; Joshi, N. J.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kim, H. J.; Kim, H. O.; Kim, J. H.; Kim, M. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kodys, P.; Korpar, S.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kwon, Y. -J.; Kyeong, S. -H.; Lee, M. J.; Lee, S. -H.; Li, J.; Limosani, A.; Liu, C.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Roehrken, M.; Ryu, S.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Smerkol, P.; Sokolov, A.; Staric, M.; Sumisawa, K.; Sumiyoshi, T.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Unno, Y.; Uno, S.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yuan, C. Z.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zyukova, O.
- Issue Date
- 15-Oct-2010
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.82, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 82
- Number
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115510
- DOI
- 10.1103/PhysRevD.82.072007
- ISSN
- 1550-7998
- Abstract
- We have searched for B-s(0) --> hh decays, where h stands for a charged or neutral kaon, or a charged pion. These results are based on a 23: 6 fb(-1) data sample collected with the Belle detector on the Y(5S) resonance at the KEKB asymmetric-energy e(+)e(-) collider, containing 1.25 x 10(6) B-s(()*())(B) over bar (()(s)*()) events. We observe the decay B-s(0) --> K+K- and measure its branching fraction, B(B-s(0) --> K+K-) = [3.8(-0.9)(+1.0)(stat) +/- 0.5(syst) +/- 0.5(f(s))] x 10(-5). The first error is statistical, the second is systematic, and the third error is due to the uncertainty in the B-s(0) production fraction in e(+)e(-) --> b (b) over bar events. No significant signals are seen in other decay modes, and we set upper limits at the 90% confidence level: B(B-s(0) --> K- pi+) < 1.2 x 10(-5), B(B-s(0) --> pi(+)pi(-)) < 2.6 x 10(-5), and B(B-s(0) --> K-0(K) over bar (0)) < 6.6 x 10(-5).
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