Analysis of the hidden-charm pentaquark candidates in the J/\psi \Sigma mass spectrum via the QCD sum rules

Abstract

In this work, we adopt the diquark model, construct the diquark-diquark-antiquark type currents with the light quarks uus in two octets, and study the uusc\overline{c} pentaquark states in the framework of the QCD sum rules systematically. We obtain the mass spectrum of the hidden-charm-singly-strange pentaquark states with the quantum numbers I{J}^P=1{\frac{1}{2}}^{-}\mathrm{,}1{\frac{3}{2}}^{-} and 1{\frac{5}{2}}^{-}. And we can search for those Pcs states in the processes {\displaystyle {\Sigma }_b^{+}}\to P_{cs}^{+}\varphi \to J/\psi {\Sigma }^{+}\varphi and {\Xi }_b^0\to P_{cs}^{+}{K}^{-}\to J/\psi {\Sigma }^{+}{K}^{-}.

Keywords

Pentaquark states / QCD sum rules

RIGHTS & PERMISSIONS

Higher Education Press 2026

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