Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 111期号:11 |
| 关键词 | PHOTOS MONTE-CARLO |
| 通讯作者 | Sandilya, S (reprint author), Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India. |
| 英文摘要 | We search for bottomonium states in gamma(2S) -> (b (b) over bar)gamma decays with an integrated luminosity of 24.7 fb(-1) recorded at the gamma(2S) resonance with the Belle detector at KEK, containing (157.8 +/- 3.6) x 10(6) gamma(2S) events. The (b (b) over bar) system is reconstructed in 26 exclusive hadronic final states composed of charged pions, kaons, protons, and K-0(S) mesons. We find no evidence for the state recently observed around 9975 MeV (X-b (b) over bar) in an analysis based on a data sample of 9.3 x 10(6) gamma(2S) events collected with the CLEO III detector. We set a 90% confidence level upper limit on the branching fraction B[gamma(2S) -> X-b (b) over bar gamma] x Sigma(i) B[X-b (b) over bar -> h(i)] < 4.9 x 10(-6), summed over the exclusive hadronic final states employed in our analysis. This result is an order of magnitude smaller than the measurement reported with CLEO data. We also set an upper limit for the eta(b)(1S) state of B[gamma(2S) -> eta(b)(1S)gamma] x Sigma B-i[eta(b)(1S) -> h(i)] < 3.7 x 10(-6). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000324229900004 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213598]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Belle Collaboration. Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays[J]. PHYSICAL REVIEW LETTERS,2013,111(11). |
| APA | Belle Collaboration.(2013).Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays.PHYSICAL REVIEW LETTERS,111(11). |
| MLA | Belle Collaboration."Search for Bottomonium States in Exclusive Radiative gamma(2S) Decays".PHYSICAL REVIEW LETTERS 111.11(2013). |
入库方式： OAI收割
来源：高能物理研究所
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