Measurements of exclusive Bs0 decays at the Υ(5S) resonance
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.; Bračko, M.; Browder, T.E.; Chang, M.-C.; Chang, P.; Chao, Y.; Chen, A.; Chen, K.-F.; Chen, W.T.; Cheon, B.G.; 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.; Križan, 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.; Schümann, J.; Schwartz, A.J.; Seidl, R.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shibuya, H.; Singh, J.B.; Somov, A.; Soni, N.; Stanič, S.; Starič, 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.
2007
Abstract
Several exclusive Bs0 decays are studied using a 1.86fb-1 data sample collected at the Υ(5S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. In the Bs0→Ds-π+ decay mode we find 10 Bs0 candidates and measure the corresponding branching fraction. Combining the Bs0→Ds(*)-π+, Bs0→Ds(*)-ρ+, Bs0→J/ψ, and Bs0→J/ψη decay modes, a significant Bs0 signal is observed. The ratio σ(e+e-→Bs*B̄s*)/σ(e+e-→Bs(*) B̄s(*))=(93-9+7±1)% is obtained at the Υ(5S) energy, indicating that Bs0 meson production proceeds predominantly through the creation of Bs*B̄s* pairs. The Bs0 and Bs* meson masses are measured to be M(Bs0)=(5370±1±3)MeV/c2 and M(Bs*)= (5418±1±3)MeV/c2. Upper limits on the Bs0→γγ, Bs0→ γ, Bs0→K+K-, and Bs0→Ds(*)+Ds(*)- branching fractions are also reported. © 2007 The American Physical Society.
Details
Title
Measurements of exclusive Bs0 decays at the Υ(5S) resonance
Author(s)
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. ; Bračko, M. ; Browder, T.E. ; Chang, M.-C. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, K.-F. ; Chen, W.T. ; Cheon, B.G. ; 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. ; Križan, 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. ; Schümann, J. ; Schwartz, A.J. ; Seidl, R. ; Senyo, K. ; Sevior, M.E. ; Shapkin, M. ; Shibuya, H. ; Singh, J.B. ; Somov, A. ; Soni, N. ; Stanič, S. ; Starič, 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.
Published in
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume
76
Issue
1
Pages
012002
Date
2007
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Laboratories
LPHE
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Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
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Work produced at EPFL
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Peer-reviewed publications
Work produced at EPFL
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Record creation date
2010-11-05