0- - hidden-heavy tetraquark states via QCD sum rules

被引：1
|
作者：
Wan, Bing-Dong [1 ,2 ]
Xu, Hong-Tai [1 ]
机构：
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
[2] Liaoning Normal Univ, Ctr Theoret & Expt High Energy Phys, Dalian 116029, Peoples R China
来源：
CHINESE PHYSICS C | 2024年 / 48卷 / 09期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
exotic hadronic states; QCD sum rules; tetraquarks; COULOMB GAUGE APPROACH; HYBRID MESONS; MASS;
D O I：
10.1088/1674-1137/ad53b7
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this study, we evaluated the mass spectra of the prospective 0(--) hidden-charm and hidden-bottom tetraquark states in molecular configuration via QCD sum rules. In our calculation, the nonperturbative condensate contributions are considered up to dimension eight in operator product expansion. It is found that there could exist 4 possible 0(--) hidden-charm tetraquark states with masses (4.68 +/- 0.07), (4.22 +/- 0.09), (4.53 +/- 0.09), and (4.26 +/- 0.13) GeV. Their corresponding hidden-bottom partners are found lying at (11.04 +/- 0.10), (10.71 +/- 0.12), (11.09 +/- 0.10), and (11.82 +/- 0.14) GeV, respectively. The possible tetraquark decay modes were analyzed, which are expected to be measured in BESIII, BELLEII, and LHCb experiments.
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收藏
页数：10
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