{Q}{^(('))s}Molecular States in QCD Sum Rules

{Q}{^(('))s}Molecular States in QCD Sum Rules

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摘要 We systematically investigate the mass spectra of {Qs}{Q（＇）s} molecular states in the framework of QCD sum rules. The interpolating currents representing the molecular states are proposed. Technically, contributions of the operators up to dimension six are included in operator product expansion （OPE）. The masses for molecular states with various {Qs}{Q（＇）s} configurations are presented. The result 4.36 ± 0.08 Ge V for theDs＊ Ds0- ＊ molecular state is consistent with the mass 4350＋4.6 -5.1± 0.7 MeV of the newly observed X（4350）, which could support X（4350） interpreted as a D＊D＊so molecular state.

作者张建荣黄明球

机构地区 Department of Physics

出处《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第12期1075-1090,共16页 理论物理通讯（英文版）

基金 Supported by the National Natural Science Foundation of China under Grant Nos.10675167 and 10975184

关键词 mass spectra molecular states QCD sum rules QCD求和规则分子体系分子状态氧化聚乙烯配置介绍质量谱运营商经营者

分类号 O572.243 [理学—粒子物理与原子核物理] O561.1 [理学—原子与分子物理]

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Communications in Theoretical Physics

2010年第12期

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{Q}{^(('))s}Molecular States in QCD Sum Rules

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