The R-uds value in the vicinity of psi(3770) state
文献类型：期刊论文
| 作者 | Cao, Xu1,4; Chen, Xurong4 ; Wang, Rong2,3,4
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2015-07-30 |
| 卷号 | 747页码:321-324 |
| 关键词 | R value Fano resonance psi(3770) |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2015.06.012 |
| 英文摘要 | The anomalous line shape of the psi(3770) state has resulted in some difficulty in the determination of the R value for the continuum light hadron production in the resonance energy range. We parameterize the asymmetric line shape using a Fano-type formula and extract the R-uds value to be 2.156 +/- 0.022 from the data of BESIII Collaboration in the energy region between 3.650 and 3.872 GeV. The small discrepancy between experiment and theory is removed. The cross sections of the e(+)e(-) -> hadrons with continuum light hadron production subtracted are given and compared to the data of the e(+)e(-) -> D (D) over bar reaction. (C) 2015 The Authors. Published by Elsevier B.V. |
| WOS关键词 | BRANCHING FRACTION ; CROSS-SECTIONS ; E(+)E(-) ; D(D)OVER-BAR ; RESONANCE ; RATIO ; PSI |
| 资助项目 | National Basic Research Program (973 Program)[2014CB845406] ; National Natural Science Foundation of China[11347146] ; National Natural Science Foundation of China[11405222] ; National Natural Science Foundation of China[11275235] ; National Natural Science Foundation of China[11175220] ; Century Program of Chinese Academy of Sciences[Y101020BR0] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000358624800054 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Basic Research Program (973 Program) ; National Natural Science Foundation of China ; Century Program of Chinese Academy of Sciences |
| 源URL | [http://119.78.100.186/handle/113462/40263]  |
| 专题 | 近代物理研究所_实验物理中心 |
| 通讯作者 | Cao, Xu |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Univ, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Xu,Chen, Xurong,Wang, Rong. The R-uds value in the vicinity of psi(3770) state[J]. PHYSICS LETTERS B,2015,747:321-324. |
| APA | Cao, Xu,Chen, Xurong,&Wang, Rong.(2015).The R-uds value in the vicinity of psi(3770) state.PHYSICS LETTERS B,747,321-324. |
| MLA | Cao, Xu,et al."The R-uds value in the vicinity of psi(3770) state".PHYSICS LETTERS B 747(2015):321-324. |
入库方式： OAI收割
来源：近代物理研究所
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