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| 題名: | Measurement of B0→J/ψη(′) and constraint on the η-η′ Mixing angle |
| 作者: | 陳鎰鋒;Chang, M.-C.;Duh, Y.-C.;Lin, J.-Y.;Adachi, I.;Adamczyk, K.;Asner, D. M.;Aushev, T.;Bakich, A. M.;Bhardwaj, V.;Bhuyan, B.;Bondar, A.;Bozek, A.;Brodzicka, J.;Chang, P.;Chen, K.-F.;Chen, P.;Cheon, B. G.;Chistov, R.;Choi, S.-K.;Choi, Y.;Doležal, Z.;Drutskoy, A.;Eidelman, S.;Fast, J. E.;Garmash, A.;Goh, Y. M.;Golob, B.;Haba, J.;Hara, T.;Hayasaka, K.;Hou, W.-S.;Hyun, H. J.;Ishikawa, A.;Itoh, R.;Iwasaki, Y.;Iwashita, T.;Julius, T.;Katayama, N.;Kim, J. B.;Kim, M. J.;Kim, Y. J.;Kinoshita, K.;Ko, B. R.;Kodyš, P.;Krokovny, P.;Kuhr, T.;Kumar, R.;Kumita, T.;Lange, J. S.;Lee, S.-H.;Li, J.;Libby, J.;Liu, C.;Liu, Z. Q.;Louvot, R.;Miyabayashi, K.;Mizuk, R.;Mohanty, G. B.;Muramatsu, N.;Nagasaka, Y.;Nakamura, I.;Nakano, E.;Nakao, M.;Nakazawa, H.;Nishimura, K.;Nitoh, O.;Olsen, S. L.;Park, C. W.;Park, K. S.;Pedlar, T. K.;Peng, T.;Petrič, M.;Piilonen, L. E.;Röhrken, M.;Sahoo, H.;Sakai, K.;Sakai, Y.;Schneider, O.;Schwanda, C.;Senyo, K.;Shapkin, M.;Shen, C. P.;Shiu, J.-G.;Sohn, Y.-S.;Solovieva, E.;Starič, M.;Sumiyoshi, T.;Tanaka, S.;Teramoto, Y.;Uchida, M.;Uehara, S.;Uno, S.;Urquijo, P.;Usov, Y.;Varner, G.;Vorobyev, V.;Wang, C. H.;Wang, P.;Won, E.;Zhang, Z. P. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2012-05-04 |
| 上傳時間: | 2026-04-23 12:09:15 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要: We measure the branching fractions of B-0 -> J/psi eta((')) decays with the complete Belle data sample of 772 x 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The results for the branching fractions are: B(B-0 -> J/psi eta) = (12.3 +/-(1.8)(1.7)+/- 0.7) x 10(-6) and B(B-0 -> J/psi eta') < 7.4 x 10(-6) at 90% confidence level. The eta-eta' mixing angle is constrained to be less than 42.2 degrees at 90% confidence level. 出版者: American Physical Society (APS) 出版日期: 2012-05-04 出處: Physical Review D, 2012-05, Vol.85 (9) 識別號: ISSN: 1550-7998 識別號: DOI: 10.1103/physrevd.85.091102 |
| 顯示於類別: | [物理學系] 期刊論文
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