Measurements of the branching fractions of exclusive charmless b meson decays with eta ' or omega mesons
文献类型：期刊论文
| 作者 | Aubert, B; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Robbe, P; Tisserand, V; Palano, A; Chen, GP |
| 刊名 | Physical review letters
 |
| 出版日期 | 2001-11-26 |
| 卷号 | 87期号:22页码:Art. no.-221802 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Aubert, b() |
| 英文摘要 | We present the results of searches for b decays to charmless two-body final states containing eta' or omega mesons, based on 20.7 fb(-1) of data collected with the babar detector. we find the branching fractions b(b+ --> eta' k+) = (70 +/- 8 +/- 5) x 10(-6), b(b-o --> eta' k-o) = (42(-11)(+13) +/- 4) x 10(-6) and b(b+ --> omega pi (+)) = (6.6(-1.8)(+2.1) +/- 0.7) x 10(-6), where the first error quoted is statistical and the second is systematic. we give measurements of four additional modes for which the 90% confidence level upper limits are b(b+ --> eta' pi (+)) < 12 x 10(-6), b(b+ --> omegak(+)) < 4 x 10(-6), b(b-o --> omegak(o)) < 13 x 10(-6), and b (b-o --> omega pi (o)) < 3 x 10(-6). |
| WOS关键词 | CP-VIOLATION ; MECHANISM ; SEARCH |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMERICAN PHYSICAL SOC |
| WOS记录号 | WOS:000172416800009 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176325 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aubert, B |
| 作者单位 | 1.Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France 2.Univ Bari, Dipartimento Fis, I-70126 Bari, Italy 3.Ist Nazl Fis Nucl, I-70126 Bari, Italy 4.Inst High Energy Phys, Beijing 100039, Peoples R China 5.Univ Bergen, Inst Phys, N-5007 Bergen, Norway 6.Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA 7.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 8.Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany 9.Univ Bristol, Bristol BS8 1TL, Avon, England 10.Univ British Columbia, Vancouver, BC V6T 1Z1, Canada |
| 推荐引用方式 GB/T 7714 | Aubert, B,Boutigny, D,Gaillard, JM,et al. Measurements of the branching fractions of exclusive charmless b meson decays with eta ' or omega mesons[J]. Physical review letters,2001,87(22):Art. no.-221802. |
| APA | Aubert, B.,Boutigny, D.,Gaillard, JM.,Hicheur, A.,Karyotakis, Y.,...&Neal, H.(2001).Measurements of the branching fractions of exclusive charmless b meson decays with eta ' or omega mesons.Physical review letters,87(22),Art. no.-221802. |
| MLA | Aubert, B,et al."Measurements of the branching fractions of exclusive charmless b meson decays with eta ' or omega mesons".Physical review letters 87.22(2001):Art. no.-221802. |
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