| QCD Sum Rules Study of X（4350） |
| |
| 引用本文： | 莫增,崔春雨,刘永录,黄明球.QCD Sum Rules Study of X（4350）[J].理论物理通讯,2014(4):501-505. |
| |
| 作者姓名： | 莫增 崔春雨 刘永录 黄明球 |
| |
| 作者单位： | [1]Department of Physics, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China [2]College of Science, National University of Defense Technology, Changsha 410073, China |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos.11347174,11275268,11105222,and 11025242 |
| |
| 摘 要： | The QCD sum rule approach is used to analyze the nature of the recently observed new resonance X （4350）, which is assumed to be a diquark-antidiquark state cs]cs] with jPC = 1-＋. The interpolating current representing this state is proposed. In the calculation, contributions of operators up to dimension six are included in the operator product expansion （OPE）, as well as terms which are linear in the strange quark mass ms. We find ml-＋ = （4.82 ~ 0.19） GeV, which is not compatible with the X（4350） structure as a 1-＋ tetraquark state. Finally, we also discuss the difference of a four-quark state＇s mass whether the state＇s interpolating current has a definite charge conjugation.
|
| 关 键 词： | QCD求和规则 夸克质量 双夸克 k状态 电荷共轭 OPE 运营商 共振 |
QCD Sum Rules Study of X(4350) |
| |
| MO Zeng,CUI Chun-Yu,LIU Yong-Lu and HUANG Ming-Qiu.QCD Sum Rules Study of X(4350)[J].Communications in Theoretical Physics,2014(4):501-505. |
| |
| Authors: | MO Zeng CUI Chun-Yu LIU Yong-Lu and HUANG Ming-Qiu |
| |
| Abstract: | X（4350）, exotic-charmonium |
| |
| Keywords: | X() exotic-charmonium |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
