Measurement of time-dependent cp-violating asymmetries in b(0)->phi k(s)(0), k(+)k(-)k(s)(0), and eta(')k(s)(0) decays
文献类型：期刊论文
| 作者 | Abe, K; Abe, K; Abe, T; Adachi, I; Aihara, H; Akai, K; Akatsu, M; Asano, Y; Aso, T; Aushev, T |
| 刊名 | Physical review letters
 |
| 出版日期 | 2003-12-31 |
| 卷号 | 91期号:26页码:6 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.91.261602 |
| 通讯作者 | Abe, k() ; Abe, k() |
| 英文摘要 | We present an improved measurement of cp-violation parameters in b(0)-->phik(s)(0), k(+)k(-)k(s)(0), and eta(')k(s)(0) decays based on a 140 fb(-1) data sample collected at the y(4s) resonance with the belle detector at the kekb energy-asymmetric e(+)e(-) collider. one neutral b meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying b meson is identified from its decay products. cp-violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two b decays. we find that the observed cp asymmetry in the b-->phik(s)(0) decay differs from the standard model (sm) expectation by 3.5 standard deviations, while the other cases are consistent with the sm. |
| WOS关键词 | B-DECAYS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000187719300009 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176369 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Abe, K; Abe, K |
| 作者单位 | 1.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan 2.Budker Inst Nucl Phys, Novosibirsk 630090, Russia 3.Chiba Univ, Chiba, Japan 4.Univ Cincinnati, Cincinnati, OH 45221 USA 5.Univ Frankfurt, D-6000 Frankfurt, Germany 6.Gyeongsang Natl Univ, Chinju, South Korea 7.Univ Hawaii, Honolulu, HI 96822 USA 8.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan 9.Hiroshima Inst Technol, Hiroshima, Japan 10.Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Abe, K,Abe, K,Abe, T,et al. Measurement of time-dependent cp-violating asymmetries in b(0)->phi k(s)(0), k(+)k(-)k(s)(0), and eta(')k(s)(0) decays[J]. Physical review letters,2003,91(26):6. |
| APA | Abe, K.,Abe, K.,Abe, T.,Adachi, I.,Aihara, H.,...&Zurcher, D.(2003).Measurement of time-dependent cp-violating asymmetries in b(0)->phi k(s)(0), k(+)k(-)k(s)(0), and eta(')k(s)(0) decays.Physical review letters,91(26),6. |
| MLA | Abe, K,et al."Measurement of time-dependent cp-violating asymmetries in b(0)->phi k(s)(0), k(+)k(-)k(s)(0), and eta(')k(s)(0) decays".Physical review letters 91.26(2003):6. |
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