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| 題名: | Evidence for the decay B0 →ηπ0 |
| 作者: | 陳鎰鋒;Okuno, S.;Kuzmin, A.S.;Kinoshita, K.;Julius, T.;Watanabe, Y.;Uno, S.;Sumisawa, K.;Sohn, Y. S.;Doležal, Z.;Nayak, M.;Libby, J.;Kodys, Peter;Eidelman, S.I.;Kim, Yongsun;Pedlar, T. K.;Badhrees, I.;Kuhr, T.;Pal, B.;Iwasaki, Y.;Piilonen, L. E.;Sanuki, T.;Thorne, F.;Seon, O.;Shapkin, M.;Dutta, D.;Vossen, A.;Golob, B.;Arinstein, K.;Gioi, L. Li;Santel, D.;Goh, Y. M.;Chang, M. C.;Aulchenko, V.M.;Ishikawa, A.;Kwon, Y. J.;Bračko, M.;Pulvermacher, C.;Miyata, H.;Jaegle, I.;Fast, James E.;Zhang, Z. P.;Varner, G. S.;Farhat, H.;Park, C. W.;Wang, M. Z.;Iijima, T.;Chekelian, V.;Nakamura, K.;Bozek, A.;Schwartz, A. J.;Zhulanov, Vladimir;Li, Yang;Korpar, S.;Hulse, C. Van;Cho, K.;Petrič, Marko;Kiesling, C.;Bonvicini, G.;Gillard, R.;Shiu, J. G.;Sakai, Y.;Dalseno, J.;Wang, X. L.;Sumiyoshi, T.;Cinabro, D.;Shen, C. P.;Lukin, P.;Stanič, Samo;Hou, W. S.;Lee, D. H.;Babu, V.;Fulsom, B. G.;Liventsev, D.;Drutskoy, A.;Teramoto, Y.;Vanhoefer, P.;Itoh, R.;Križan, P.;Usov, Y.;Schneider, O.;Nakao, M.;Chen, A.;Garmash, A.;Natkaniec, Z.;Sumihama, M.;Schnell, G.;Unno, Yoshinobu;Said, S. Al;Yashchenko, S.;Moll, A.;Vorobyev, V.;Solovieva, E.;Ferber, T.;Yamaoka, J.;Asner, D. M.;Simon, Frank;Zhilich, V.N.;Kim, M. J.;Senyo, K.;Schwanda, C. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | ddc:530;info:eu-repo/classification/ddc/530;Physics |
| 日期: | 2015-07-09 |
| 上傳時間: | 2026-04-23 11:54:36 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要： We report a search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) resonance at the KEKB e(+)e(-) collider. We measure a branching fraction B(B-0 > eta pi(0)) = (4.1(-1.5-0.7)(+1.75+0.5)) x 10(-7), where the first unceminty is statistical and the second is systematic. Our measurement gives an upper limit of beta(B-0 -> n pi(0)) < 6.5 x 10(-7) at 90% confidence level. The signal has a significance of 3.0 standard deviations and constitutes the first evidence for this decay mode.
出版者： American Physical Society (APS)
出版日期： 2015-07-09
出處： Physical Review D, 2015-07, Vol.92
識別號： ISSN: 1550-7998
識別號： EISSN: 1550-2368
識別號： DOI: 10.1103/physrevd.92.011101 |
| 顯示於類別: | [物理學系] 期刊論文
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