The Ω(2012) as a Hadronic Molecule

被引：2
|
作者：
Xie, Ju-Jun [1 ,2 ,3 ]
Geng, Li-Sheng [3 ,4 ,5 ,6 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Southern Ctr Nucl Sci Theory SCNT, Huizhou 516000, Peoples R China
[4] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China
[5] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 102206, Peoples R China
[6] Beihang Univ, Peng Huanwu Collaborat Ctr Res & Educ, Beijing 100191, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2024年 / 41卷 / 08期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
QUARK-MODEL; OMEGA; 2012; RESONANCES; BARYONS;
D O I：
10.1088/0256-307X/41/8/081402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recently, a new excited baryon state, Omega(2012), was observed in the invariant mass spectra of K-Xi(0) and K-S(0)Xi- by the Belle collaboration. This state has a narrow width (similar to 6 MeV) compared to other baryon states with a similar mass. Here, we provide a mini-review on the Omega(2012) state from the molecular perspective, where it appears to be a dynamically generated state with spin-parity 3/2(-) from the coupled-channels interactions of the K<overline>Xi(1530) and eta Omega in s-wave and K<overline>Xi in d-wave. Additionally, alternative explanations for the Omega(2012) resonance are also discussed.
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页数：4
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