The Institute of Quantum Research of SCNU has achieved groundbreaking progress in nuclear physics. Research was conducted in partnership with the Guangdong Key Laboratory of Nuclear Material Science and Technology, the University of Bonn in Germany, the University of Murcia in Spain, the Institute of Theoretical Physics of CAS and other research institutions.


Three hidden-charm pentaquark Pc states, Pc(4312), Pc(4440), and Pc(4457) were revealed in the Λ0b→J/ψpK− process measured by LHCb using both run I and run II data. The team also founded that there is evidence for a narrow Σc¯D bound state in the data which we call Pc(4380), different from the broad one reported by LHCb in 2015.

The findings were published in the international leading journal of physics called Physical Review Letters, in an article titled “Interpretation of the LHCb Pc states as Hadronic Molecules and Hints of a Narrow Pc(4380).”


The properties of the multi-quark state is one of the hot topics in the hadron physics research in recent years. Its dynamics are closely related to the non-microperturbation mechanical properties of the basic theory of strong interaction (quantum chromodynamics). In this study, all predicted Σc¯D, Σc¯D, and Σc¯D hadronic molecules are seen in the data, while the missing three Σ∗c¯D∗ states are expected to be found in future runs of the LHC or in photo production experiments.

With researcher Wang Qian, a national junior expert newly introduced to SCNU, as corresponding author for the study, more fruitful results lie in the benign relations we established with partner institutions both home and abroad, which is another success in our international cooperation. The work was supported by NSFC, the Natural Science Foundation of Guangdong Province and the First-class Discipline of Physics.

Links to academic papers:


Source from Institute of Quantum Research

Translated by Xu Wenting

Proofread by Edwin Baak

Reviewed by Li Jianru


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