Measurements of branching fractions and time-dependent cp-violating asymmetries in b -> eta ' k decays
文献类型：期刊论文
| 作者 | Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; Tisserand, V; Zghiche, A; Grauges-Pous, E |
| 刊名 | Physical review letters
 |
| 出版日期 | 2005-05-20 |
| 卷号 | 94期号:19页码:7 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.94.191802 |
| 通讯作者 | Aubert, b() |
| 英文摘要 | We present measurements of the b ->eta(')k branching fractions; for b+->eta(')k(+) we measure also the time-integrated charge asymmetry a(ch), and for b-0->eta(')k(s)(0) the time-dependent cp-violation parameters s and c. the data sample corresponds to 232x10(6) b (b) over bar pairs produced by e(+)e(-) annihilation at the upsilon(4s). the results are b(b ->eta(')k(+))=(68.9 +/- 2.0 +/- 3.2)x10(-6), b(b-0->eta(')k(0))=(67.4 +/- 3.3 +/- 3.2)x10(-6), a(ch)=0.033 +/- 0.028 +/- 0.005, s=0.30 +/- 0.14 +/- 0.02, and c=-0.21 +/- 0.10 +/- 0.02, where the first error quoted is statistical and the second is systematic. |
| 收录类别 | SCI |
| WOS关键词 | QCD FACTORIZATION ; B DECAYS ; AMPLITUDES ; PHYSICS ; ETA' |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000229277000008 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175801 |
| 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 Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain 3.Univ Bari, Dipartimento Fis, I-70126 Bari, Italy 4.Univ Bari, Ist Nazl Fis Nucl, I-70126 Bari, Italy 5.Inst High Energy Phys, Beijing 100039, Peoples R China 6.Univ Bergen, Inst Phys, N-5007 Bergen, Norway 7.Lawrence Berkeley Lab, Berkeley, CA 94720 USA 8.Univ Calif Berkeley, Berkeley, CA 94720 USA 9.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 10.Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany |
| 推荐引用方式 GB/T 7714 | Aubert, B,Barate, R,Boutigny, D,et al. Measurements of branching fractions and time-dependent cp-violating asymmetries in b -> eta ' k decays[J]. Physical review letters,2005,94(19):7. |
| APA | Aubert, B.,Barate, R.,Boutigny, D.,Couderc, F.,Karyotakis, Y.,...&Neal, H.(2005).Measurements of branching fractions and time-dependent cp-violating asymmetries in b -> eta ' k decays.Physical review letters,94(19),7. |
| MLA | Aubert, B,et al."Measurements of branching fractions and time-dependent cp-violating asymmetries in b -> eta ' k decays".Physical review letters 94.19(2005):7. |
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