Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays
文献类型：期刊论文
| 作者 | Won, E.22; Ko, B. R.22; Adachi, I.10; Aihara, H.52; Arinstein, K.1,2; Asner, D. M.39; Aushev, T.17; Bakich, A. M.46; Barberio, E.28; Bay, A.24 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2011-11-21 |
| 卷号 | 107期号:22页码:6 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.107.221801 |
| 通讯作者 | Won, e.() |
| 英文摘要 | We report the first observation of the doubly cabibbo-suppressed decays d+ -> k+eta(()'()) using a 791 fb(-1) data sample collected with the belle detector at the kekb asymmetric-energy e(+)e(-) collider. the ratio of the branching fractions of doubly cabibbo-suppressed relative to singly cabibbo-suppressed d+ -> pi(+)eta(()'()) decays are b(d+ -> k+eta) / b(d+ -> pi(+)eta) =(3.06 +/- 0.43 +/- 0.14)% and b(d+ -> k+eta')/b(d+->pi(+)eta') = (3.77 +/- 0.39 +/- 0.10)%. from these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in d+ decays, delta(ta), is (72 +/- 9)degrees or (288 +/- 9)degrees. we also report the most precise measurements of cp asymmetries to date: a(cp)(d+->pi+eta) = (+1.74 +/- 1.13 +/- 0.19)% and a(cp)(d+->pi+eta') = (-0.12 +/- 1.12 +/- 0.17)%. |
| WOS关键词 | BELLE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000297292000003 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176036 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Won, E. |
| 作者单位 | 1.Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia 2.Novosibirsk State Univ, Novosibirsk 630090, Russia 3.Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic 4.Univ Cincinnati, Cincinnati, OH 45221 USA 5.Univ Giessen, Giessen, Germany 6.Gifu Univ, Gifu, Japan 7.Gyeongsang Natl Univ, Chinju, South Korea 8.Hanyang Univ, Seoul 133791, South Korea 9.Univ Hawaii, Honolulu, HI 96822 USA 10.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan |
| 推荐引用方式 GB/T 7714 | Won, E.,Ko, B. R.,Adachi, I.,et al. Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays[J]. Physical review letters,2011,107(22):6. |
| APA | Won, E..,Ko, B. R..,Adachi, I..,Aihara, H..,Arinstein, K..,...&Zyukova, O..(2011).Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays.Physical review letters,107(22),6. |
| MLA | Won, E.,et al."Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays".Physical review letters 107.22(2011):6. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。