Answers are grounded in this paper and cite their sources.
This analysis distinguishes isospin in diquark-diquark-antiquark candidates, suggesting hidden-charm properties.
In this work, we distinguish the isospin unambiguously to construct the diquark-diquark-antiquark type five-quark currents with the isospin I=1/2, and study the uudcc̄ pentaquark states with the QCD sum rules systematically for the first time. Then we obtain the mass spectrum of the diquark-diquark-antiquark type uudcc̄ pentaquark states with the isospin-spin-parity IJP=1/21/2⁻, 1/23/2⁻ and 1/25/2⁻, and make possible assignments of the Pc(4312), Pc(4337), Pc(4380), Pc(4440) and Pc(4457). As a byproduct, we obtain the lowest hidden-charm pentaquark state which lies just above the D̄Λc threshold.
No takes yet. Share an insight, caveat, or question.
Zhi-Gang Wang (2025) studied this question.
Synapse has enriched 8 closely related papers on similar clinical questions. Consider them for comparative context: