Measurement of branching fractions in radiative b decays to eta k gamma and search for b decays to eta k-'gamma
文献类型：期刊论文
| 作者 | Aubert, B.; Barate, R.; Bona, M.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Tisserand, V.; Zghiche, A. |
| 刊名 | Physical review d
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 74期号:3页码:8 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/physrevd.74.031102 |
| 通讯作者 | Aubert, b.() |
| 英文摘要 | We present measurements of the b ->eta k gamma branching fractions and upper limits for the b ->eta k-'gamma branching fractions. for b+->eta k+gamma we also measure the time-integrated charge asymmetry. the data sample, collected with the babar detector at the stanford linear accelerator center, represents 232x10(6) produced b (b) over bar pairs. the results for branching fractions and upper limits at 90% confidence level in units of 10(-6) are: b(b-0 ->eta k-0 gamma)=11.3(-2.6)(+2.8)+/- 0.6, b(b+->eta k+gamma)=10.0 +/- 1.3 +/- 0.5, b(b-0 ->eta k-'(0)gamma)< 6.6, b(b+->eta k-'(+)gamma)< 4.2. the charge asymmetry in the decay b+->eta k+gamma is a(ch)=-0.09 +/- 0.12 +/- 0.01. the first errors are statistical and the second systematic. |
| WOS关键词 | CP VIOLATION |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMERICAN PHYSICAL SOC |
| WOS记录号 | WOS:000240239300002 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175823 |
| 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 Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain 3.Univ Bari, Dipartimento Fis, I-70126 Bari, Italy 4.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.Univ Calif Berkeley, Berkeley, CA 94720 USA 8.Lawrence Berkeley Lab, Berkeley, CA 94720 USA 9.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 10.Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany |
| 推荐引用方式 GB/T 7714 | Aubert, B.,Barate, R.,Bona, M.,et al. Measurement of branching fractions in radiative b decays to eta k gamma and search for b decays to eta k-'gamma[J]. Physical review d,2006,74(3):8. |
| APA | Aubert, B..,Barate, R..,Bona, M..,Boutigny, D..,Couderc, F..,...&Neal, H..(2006).Measurement of branching fractions in radiative b decays to eta k gamma and search for b decays to eta k-'gamma.Physical review d,74(3),8. |
| MLA | Aubert, B.,et al."Measurement of branching fractions in radiative b decays to eta k gamma and search for b decays to eta k-'gamma".Physical review d 74.3(2006):8. |
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