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Measurements of exclusive B-s(0) decays at the Upsilon(5S) resonance
- Drutskoy, A.;
- Abe, K.;
- Adachi, I.;
- Aihara, H.;
- Anipko, D.;
- ... Cheon, Byung Gu;
- 외 130명
WEB OF SCIENCE
15SCOPUS
24초록
Several exclusive B-s(0) decays are studied using a 1.86 fb(-1) data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. In the B-s(0)-> D-s(-)pi(+) decay mode we find 10 B-s(0) candidates and measure the corresponding branching fraction. Combining the B-s(0)-> D-s((*)-)pi(+), B-s(0)-> D-s((*)-)rho(+), B-s(0)-> J/psi phi, and B-s(0)-> J/psi eta decay modes, a significant B-s(0) signal is observed. The ratio sigma(e(+)e(-)-> B-s(*)(B) over bar (*)(s))/sigma(e(+)e(-)-> B-s((*))(B) over bar ((*))(s))=(93(-9)(+7)+/- 1)% is obtained at the Upsilon(5S) energy, indicating that B-s(0) meson production proceeds predominantly through the creation of B-s(*)(B) over bar (*)(s) pairs. The B-s(0) and B-s(*) meson masses are measured to be M(B-s(0))=(5370 +/- 1 +/- 3) MeV/c(2) and M(B-s(*))=(5418 +/- 1 +/- 3) MeV/c(2). Upper limits on the B-s(0)->gamma gamma, B-s(0)->phi gamma, B-s(0)-> K+K-, and B-s(0)-> Ds(*)+Ds(*)- branching fractions are also reported.
키워드
- 제목
- Measurements of exclusive B-s(0) decays at the Upsilon(5S) resonance
- 저자
- Drutskoy, A.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Bakich, A. M.; Barberio, E.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bracko, M.; Browder, T. E.; Chang, M.-C.; Chang, P.; Chao, Y.; Chen, A.; Chen, K.-F.; Chen, W. T.; Cheon, Byung Gu; Chistov, R.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Dragic, J.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hara, T.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Ikado, K.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J. H.; Kapusta, P.; Kawai, H.; Kawasaki, T.; Kim, H. J.; Kim, H. O.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krizan, P.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y.-J.; Lee, M. J.; Limosani, A.; Lin, S.-W.; Liventsev, D.; MacNaughton, J.; Majumder, G.; Matsumoto, T.; McOnie, S.; Mitaroff, W.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Moloney, G. R.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Satoyama, N.; Schietinger, T.; Schneider, O.; Schuemann, J.; Schwartz, A. J.; Seidl, R.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Singh, J. B.; Somov, A.; Soni, N.; Stanic, S.; Staric, M.; Stoeck, H.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tikhomirov, I.; Uehara, S.; Ueno, K.; Unno, Y.; Uno, S.; Ushiroda, Y.; Usov, Y.; Varner, G.; Villa, S.; Vinokurova, A.; Wang, C. H.; Watanabe, Y.; Wicht, J.; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
- 발행일
- 2007-07
- 유형
- Article
- 권
- 76
- 호
- 1
- 페이지
- 1 ~ 9