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

Abstract

In this work, we study the diquark-diquark-antiquark type $uusc\bar{c}$ pentaquark states in the light-flavor $10$ representation via the QCD sum rules in details. We exhaust the lowest five-quark configurations and obtain the spectroscopy of the $uusc\bar{c}$ pentaquark states with the quantum numbers $I{J}^P=1{\frac{1}{2}}^{-}$, $1{\frac{3}{2}}^{-}$, $1{\frac{5}{2}}^{-}$, and suggest to investigate them in the decay chain ${\Sigma }_b^{+}\to P_{cs}^{+}\varphi \to J/\psi {\Sigma }^{\ast +}\varphi$ experimentally.

12 pages, 8 figures