Evidence for b -> k eta 'gamma decays at belle
文献类型：期刊论文
| 作者 | Wedd, R.1; Adachi, I.9; Aihara, H.41; Arinstein, K.2,31; Aulchenko, V.2,31; Bakich, A. M.38; Balagura, V.13; Barberio, E.1; Bay, A.19; Belous, K.12 |
| 刊名 | Physical review d
 |
| 出版日期 | 2010-06-28 |
| 卷号 | 81期号:11页码:7 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/physrevd.81.111104 |
| 通讯作者 | Wedd, r.() |
| 英文摘要 | We present the results of a search for the radiative decay b -> k eta 'gamma and find evidence for b(+) -> k(+)eta 'gamma decays at the 3.3 standard deviation level with a partial branching fraction of (3.6 +/- 1.2 +/- 0.4) x 10(-6), where the first error is statistical and the second systematic. this measurement is restricted to the region of combined k eta ' invariant mass less than 3.4 gev/c(2). a 90% confidence level upper limit of 6.4 x 10(-6) is obtained for the partial branching fraction of the decay b(0) -> k(0)eta 'gamma in the same k eta ' invariant mass region. these results are obtained from a 605 fb(-1) data sample containing 657 x 10(6) b (b) over bar pairs collected at the y(4s) resonance with the belle detector at the kekb asymmetric-energy e(+)e(-) collider. |
| WOS关键词 | HIGH-ENERGY-PHYSICS ; CP VIOLATION ; ETA ; DETECTOR |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000279268300001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175975 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wedd, R. |
| 作者单位 | 1.Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia 2.Budker Inst Nucl Phys, Novosibirsk 630090, Russia 3.Chiba Univ, Chiba, Japan 4.Univ Cincinnati, Cincinnati, OH 45221 USA 5.Kosciuszko Cracow Univ Technol, Krakow, Poland 6.Grad Univ Adv Studies, Hayama, Japan 7.Hanyang Univ, Seoul 133791, South Korea 8.Univ Hawaii, Honolulu, HI 96822 USA 9.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan 10.Hiroshima Inst Technol, Hiroshima, Japan |
| 推荐引用方式 GB/T 7714 | Wedd, R.,Adachi, I.,Aihara, H.,et al. Evidence for b -> k eta 'gamma decays at belle[J]. Physical review d,2010,81(11):7. |
| APA | Wedd, R..,Adachi, I..,Aihara, H..,Arinstein, K..,Aulchenko, V..,...&Zyukova, O..(2010).Evidence for b -> k eta 'gamma decays at belle.Physical review d,81(11),7. |
| MLA | Wedd, R.,et al."Evidence for b -> k eta 'gamma decays at belle".Physical review d 81.11(2010):7. |
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