| Literature DB >> 21517300 |
J Li1, H Aihara, K Arinstein, V Aulchenko, T Aushev, T Aziz, A M Bakich, V Balagura, E Barberio, K Belous, V Bhardwaj, B Bhuyan, A Bozek, M Bračko, O Brovchenko, T E Browder, P Chang, A Chen, P Chen, B G Cheon, C-C Chiang, R Chistov, I-S Cho, K Cho, S-K Choi, Y Choi, J Dalseno, Z Doležal, A Drutskoy, S Eidelman, S Esen, M Feindt, V Gaur, N Gabyshev, A Garmash, B Golob, H Ha, J Haba, T Hara, H Hayashii, Y Horii, Y Hoshi, W-S Hou, Y B Hsiung, H J Hyun, T Iijima, A Ishikawa, R Itoh, Y Iwasaki, T Iwashita, T Julius, J H Kang, P Kapusta, N Katayama, T Kawasaki, H Kichimi, C Kiesling, H J Kim, H O Kim, M J Kim, S K Kim, Y J Kim, K Kinoshita, B R Ko, N Kobayashi, S Korpar, P Križan, T Kuhr, R Kumar, T Kumita, A Kuzmin, Y-J Kwon, J S Lange, M J Lee, S-H Lee, C-L Lim, C Liu, D Liventsev, R Louvot, J MacNaughton, A Matyja, S McOnie, K Miyabayashi, H Miyata, Y Miyazaki, G B Mohanty, A Moll, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Neubauer, S Nishida, K Nishimura, O Nitoh, T Nozaki, T Ohshima, S Okuno, S L Olsen, P Pakhlov, G Pakhlova, C W Park, H Park, H K Park, R Pestotnik, M Petrič, L E Piilonen, A Poluektov, M Prim, K Prothmann, M Röhrken, M Rozanska, S Ryu, H Sahoo, Y Sakai, O Schneider, C Schwanda, A J Schwartz, R Seidl, K Senyo, M E Sevior, M Shapkin, V Shebalin, C P Shen, J-G Shiu, B Shwartz, F Simon, J B Singh, P Smerkol, Y-S Sohn, A Sokolov, E Solovieva, S Stanič, M Starič, J Stypula, M Sumihama, T Sumiyoshi, S Suzuki, S Tanaka, Y Teramoto, K Trabelsi, M Uchida, S Uehara, Y Unno, S Uno, Y Ushiroda, Y Usov, S E Vahsen, G Varner, A Vinokurova, A Vossen, C H Wang, M-Z Wang, M Watanabe, Y Watanabe, J Wicht, K M Williams, E Won, B D Yabsley, Y Yamashita, D Zander, C C Zhang, Z P Zhang, V Zhilich, P Zhou, V Zhulanov, A Zupanc.
Abstract
We report the observation of B(s)⁰→J/ψf₀(980) and evidence for B(s)⁰→J/ψf₀(1370), which are CP eigenstate decay modes. These results are obtained from 121.4 fb⁻¹ of data collected at the Υ(5S) resonance with the Belle detector at the KEKB e(+)e⁻ collider. We measure the branching fractions B(B(s)⁰→J/ψf₀(980); f₀(980)→π(+)π⁻)=(1.16(-0.19)(+0.31)(stat)(-0.17)(+0.15)(syst)(-0.18)(+0.26)(N(B(s)((*))B(s)((*)))))×10⁻⁴ with a significance of 8.4σ, and B(B(s)⁰→J/ψf₀(1370); f₀(1370)→π(+)π⁻)=(0.34(-0.14)(+0.11)(stat)(-0.02)(+0.03)(syst)(-0.05)(+0.08)(N(B(s)((*))B(s)((*)))))×10⁻⁴ with a significance of 4.2σ. The last error listed is due to uncertainty in the number of produced B(s)((*))B(s)((*)) pairs.Year: 2011 PMID： 21517300 DOI： 10.1103/PhysRevLett.106.121802
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161