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A mixing coupling scheme for spectra of singly heavy baryons with spin-1 diquarks in P-waves
被引：0
作者：
Duojie Jia
Ji-Hai Pan
Cheng-Qun Pang
机构：
[1] Northwest Normal University,Institute of Theoretical Physics, College of Physics and Electronic Engineering
[2] Qinghai Normal University,College of Physics and Electronic Information Engineering
[3] Lanzhou University and Qinghai Normal University,Joint Research Center for Physics
[4] Lanzhou University,Lanzhou Center for Theoretical Physics
来源：
The European Physical Journal C
|
2021年
/
81卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new scheme of state classification is proposed and applied to analyze masses of the heavy baryons ΩQ\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{Q}$$\end{document}, ΣQ\documentclass[12pt]{minimal}
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\begin{document}$$\varXi _{Q}^{\prime }$$\end{document} in P-waves. The results confirm all excited Ωc\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{c}$$\end{document} and Ωb\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{b}$$\end{document} baryons reported recently by LHCb to be bound states of a P-wave ss-diquark and a respective charm or bottom quark, and thereby predict Regge trajectories for more excited Ωc\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{c}$$\end{document} and Ωb\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{b}$$\end{document} baryons. We suggest one excited JP=5/2-\documentclass[12pt]{minimal}
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\begin{document}$$J^{P}=5/2^{-}$$\end{document}Ωb\documentclass[12pt]{minimal}
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\begin{document}$$\varOmega _{b}$$\end{document} state to be unseen by LHCb around 6352 MeV, and predict P-wave masses of all spin-partners of the odd-parity baryons Σc(2800)/Ξc′(2942)\documentclass[12pt]{minimal}
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\begin{document}$$\varSigma _{c}(2800)/\varXi _{c}^{\prime }(2942)$$\end{document} and Σb(6097)\documentclass[12pt]{minimal}
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\begin{document}$$\varSigma _{b}(6097)$$\end{document}/Ξb′(6227)\documentclass[12pt]{minimal}
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\begin{document}$$\varXi _{b}^{\prime }(6227)$$\end{document}. A computation is further given in a relativized potential quark models to explain matched values of spin couplings of all considered baryons, by which a scaling law for these spin couplings is discussed.
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