Excited Ωb baryons and fine structure of strong interaction

被引：0
|
作者：
Chen, Hua-Xing [1 ,2 ]
Cui, Er-Liang [3 ]
Hosaka, Atsushi [4 ,5 ]
Mao, Qiang [6 ]
Yang, Hui-Min [2 ]
机构：
[1] Southeast Univ, Sch Phys, Nanjing 210094, Peoples R China
[2] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
[3] Northwest A&F Univ, Coll Sci, Yangling 712100, Shaanxi, Peoples R China
[4] Osaka Univ, RCNP, Ibaraki 5670047, Japan
[5] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[6] Suzhou Univ, Dept Elect & Elect Engn, Suzhou 234000, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 03期
基金：
中国国家自然科学基金;
关键词：
QCD SUM-RULES; QUARK-MODEL; HEAVY BARYONS; MASSES;
D O I：
10.1140/epjc/s10052-020-7824-y
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The heavy baryon system bounded by the strong interaction has a rich internal structure, so its mass spectra can have the fine structure similar to the line spectra of atom bounded by the electromagnetic interaction. We systematically study the internal structure of P-wave Ob baryons and calculate their D-wave decay properties. The present study, together with our previous studies on their mass spectra and S-wave decay properties, suggest that all the four excitedOb baryons recently discovered by LHCb can be well explained as P-wave Ob baryons, and their beautiful fine structure is directly related to the rich internal structure of P-wave Ob baryons.
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页数：6
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