Search for a light exotic particle in J/psi radiative decays
文献类型：期刊论文
| 作者 | BESIII Callaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:9 |
| 关键词 | GRAVITINO ENERGIES BOSONS |
| 通讯作者 | Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | Using a data sample containing 1.06 x 10(8) psi' events collected with the BESIII detector at the BEPCII electron-positron collider, we search for a light exotic particle X in the process psi' -> pi(+)pi-J/psi, J/psi -> gamma X, X -> mu(+)mu(-). This light particle X could be a Higgs-like boson A(0), a spin-1 U boson, or a pseudoscalar sgoldstino particle. In this analysis, we find no evidence for any mu(+)mu-mass peak between the mass threshold and 3.0 GeV/c(2). We set 90%-confidence-level upper limits on the product-branching fractions for J/psi -> gamma A(0), A(0) -> mu(+)mu-which range from 4 x 10(-7) to 2.1 x 10(-5), depending on the mass of A(0), for M(A(0)) < 3.0 GeV/c(2). Only one event is seen in the mass region below 255 MeV/c(2), and this has mu(+)mu-mass of 213.3 MeV/c(2) and the product-branching-fraction upper limit 5 x 10(-7). |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000304255300003 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213244]  |
| 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 | BESIII Callaboration. Search for a light exotic particle in J/psi radiative decays[J]. PHYSICAL REVIEW D,2012,85(9). |
| APA | BESIII Callaboration.(2012).Search for a light exotic particle in J/psi radiative decays.PHYSICAL REVIEW D,85(9). |
| MLA | BESIII Callaboration."Search for a light exotic particle in J/psi radiative decays".PHYSICAL REVIEW D 85.9(2012). |
入库方式： OAI收割
来源：高能物理研究所
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