Branching fraction measurement of j=psi -> kskl and search for j=psi -> ksks
文献类型：期刊论文
| 作者 | Ablikim, M.1; Achasov, M. N.9,70; Ahmed, S.14; Albrecht, M.4; Alekseev, M.60,62; Amoroso, A.60,62; An, F. F.1; An, Q.43,44,57; Bai, J. Z.1; Bai, Y.42 |
| 刊名 | Physical review d
 |
| 出版日期 | 2017-12-04 |
| 卷号 | 96期号:11页码:7 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.96.112001 |
| 通讯作者 | Ablikim, m.() |
| 英文摘要 | Using a sample of 1.31 x 10(9) j/psi events collected with the besiii detector at the bepcii collider, we study the decays of j/psi -> kskl and ksks. the branching fraction of j/psi -> kskl is determined to be b(j/psi -> kskl) = (1.93 +/- 0.01 (stat) +/- 0.05 (syst)) x 10(-4), which significantly improves on previous measurements. no clear signal is observed for the j/psi -> ksks process, and the upper limit at the 95% confidence level for its branching fraction is determined to be b(j/psi -> ksks) < 1.4 x 10(-8), which improves on the previous searches by 2 orders in magnitude and reaches the order of the einstein-podolsky-rosen expectation. |
| WOS关键词 | DECAYS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000416950200001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178288 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Ablikim, M. |
| 作者单位 | 1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Beihang Univ, Beijing 100191, Peoples R China 3.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 4.Bochum Ruhr Univ, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Def Rd,Off Raiwind Road,, Lahore 54000, Pakistan 9.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia 10.GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Ablikim, M.,Achasov, M. N.,Ahmed, S.,et al. Branching fraction measurement of j=psi -> kskl and search for j=psi -> ksks[J]. Physical review d,2017,96(11):7. |
| APA | Ablikim, M..,Achasov, M. N..,Ahmed, S..,Albrecht, M..,Alekseev, M..,...&Zou, J. H..(2017).Branching fraction measurement of j=psi -> kskl and search for j=psi -> ksks.Physical review d,96(11),7. |
| MLA | Ablikim, M.,et al."Branching fraction measurement of j=psi -> kskl and search for j=psi -> ksks".Physical review d 96.11(2017):7. |
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来源：高能物理研究所
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