B meson decays to eta k-(')*, eta(('))rho, eta(('))pi(0), omega pi(0), and phi pi(0)
文献类型：期刊论文
| 作者 | Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Tisserand, V; Zghiche, A |
| 刊名 | Physical review d
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 70期号:3页码:20 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/physrevd.70.032006 |
| 通讯作者 | Aubert, b() |
| 英文摘要 | We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body b decays to eta(('))k(*), eta(('))rho, eta(('))pi(0), omegapi(0), and phipi(0). the data were recorded with the babar detector at pep-ii and correspond to 89x10(6) b (b) over bar pairs produced in e(+)e(-) annihilation through the y(4s) resonance. we find significant signals for two decay modes and measure the branching fractions b(b+-->etak(*+))=(25.6+/-4.0+/-2.4)x10(-6) and b(b-0-->etak(*0))=(18.6+/-2.3+/-1.2)x10(-6), where the first error is statistical and the second systematic. we also find evidence with significance 3.5sigma for a third decay mode and measure b(b+-->etarho(+))=(9.2+/-3.4+/-1.0)x10(-6). for other channels, we set 90% c.l. upper limits of b(b-0-->etarho(0))<1.5x10(-6), b(b+-->eta(')k(*+))<14x10(-6), b(b-0-->eta(')k(*0))<7.6x10(-6), b(b+-->eta(')rho(+))<22x10(-6), b(b-0-->eta(')rho(0))<4.3x10(-6), b(b-0-->etapi(0))<2.5x10(-6), b(b-0-->eta(')pi(0))<3.7x10(-6), b(b-0-->omegapi(0))<1.2x10(-6), and b(b-0-->phipi(0))<1.0x10(-6). for self-flavor-tagging modes with significant signals, the time-integrated charge asymmetries are a(ch)(etak(*+))=+0.13+/-0.14+/-0.02 and a(ch)(etak(*0))=+0.02+/-0.11+/-0.02. |
| WOS关键词 | CP-VIOLATION ; ETA ; SEARCH ; VECTOR ; MODES |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000223859600012 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175774 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aubert, B |
| 作者单位 | 1.Phys Particules Lab, F-74941 Annecy Le Vieux, France 2.Univ Bari, Dipartmento 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, Berkeley, CA 94720 USA 7.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 8.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 9.Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany 10.Univ Bristol, Bristol BS8 1TL, Avon, England |
| 推荐引用方式 GB/T 7714 | Aubert, B,Barate, R,Boutigny, D,et al. B meson decays to eta k-(')*, eta(('))rho, eta(('))pi(0), omega pi(0), and phi pi(0)[J]. Physical review d,2004,70(3):20. |
| APA | Aubert, B.,Barate, R.,Boutigny, D.,Couderc, F.,Gaillard, JM.,...&Neal, H.(2004).B meson decays to eta k-(')*, eta(('))rho, eta(('))pi(0), omega pi(0), and phi pi(0).Physical review d,70(3),20. |
| MLA | Aubert, B,et al."B meson decays to eta k-(')*, eta(('))rho, eta(('))pi(0), omega pi(0), and phi pi(0)".Physical review d 70.3(2004):20. |
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