Observation of x(3872) -> j/psi gamma and search for x(3872) -> psi 'gamma in b decays
文献类型：期刊论文
| 作者 | Bhardwaj, V.1; Trabelsi, K.9; Singh, J. B.1; Choi, S. -K.6; Olsen, S. L.8,42; Adachi, I.9; Adamczyk, K.33; Asner, D. M.39; Aulchenko, V.2,37; Aushev, T.17 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2011-08-26 |
| 卷号 | 107期号:9页码:6 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.107.091803 |
| 通讯作者 | Bhardwaj, v.() |
| 英文摘要 | We report a study of b -> (j/psi gamma)k and b -> (psi'gamma)k decay modes using 772 x 10(6) b (b) over bar events collected at the y(4s) resonance with the belle detector at the kekb energy-asymmetric e(+)e(-) collider. we observe x(3872) -> j/psi gamma and report the first evidence for chi(c2) -> j/psi gamma in b -> (x-c (c) over bar gamma)k decays, while in a search for x(3872) -> psi'gamma no significant signal is found. we measure the branching fractions, b(b-+/- -> x(3872)k-+/-)b(x(3872) -> j/psi gamma) = (1.78(-0.44)(+0.48) +/- 0.12) x 10(-6), b(b-+/- -> chi k-c2(+/-)) = (1.11(-0.34)(+0.36) +/- 0.09) x 10(-5), b(b+ -> x(3872)k+)b(x(3872) -> psi'gamma) < 3.45 x 10(-6) (upper limit at 90% c. l.), and also provide upper limits for other searches. |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000294328300003 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176035 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Bhardwaj, V. |
| 作者单位 | 1.Panjab Univ, Chandigarh 160014, India 2.Budker Inst Nucl Phys, 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.Gyeongsang Natl Univ, Chinju, South Korea 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.Indian Inst Technol Guwahati, Gauhati, India |
| 推荐引用方式 GB/T 7714 | Bhardwaj, V.,Trabelsi, K.,Singh, J. B.,et al. Observation of x(3872) -> j/psi gamma and search for x(3872) -> psi 'gamma in b decays[J]. Physical review letters,2011,107(9):6. |
| APA | Bhardwaj, V..,Trabelsi, K..,Singh, J. B..,Choi, S. -K..,Olsen, S. L..,...&Zupanc, A..(2011).Observation of x(3872) -> j/psi gamma and search for x(3872) -> psi 'gamma in b decays.Physical review letters,107(9),6. |
| MLA | Bhardwaj, V.,et al."Observation of x(3872) -> j/psi gamma and search for x(3872) -> psi 'gamma in b decays".Physical review letters 107.9(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。