Analysis of the excited Ω_(c) states as the 1/2^(±) pentaquark states with QCD sum rules

作     者：Hui-Juan Wang Zun-Yan Di Zhi-Gang Wang Hui-Juan Wang;Zun-Yan Di;Zhi-Gang Wang

作者机构：Department of PhysicsNorth China Electric Power UniversityBaoding 071003China School of Nuclear Sicence and EngineeringNorth China Electric Power UniversityBeijing 102206China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2021年第73卷第3期

页      面：78-93页

核心收录：

学科分类：07[理学] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation Grant Number 11775079 

主　　题：charmed baryon states charmed pentaquark states QCD sum rules 

摘      要：We construct both the scalar-diquark-scalar-diquark-antiquark type and axialvector-diquark-axialvector-diquark-antiquark type interpolating currents to study the charmed pentaquark:states suscu with J^(p)=1/2^(±).We employ the QCD sum rules to investigate the masses and pole residues of the charmed pentaquark states by taking into account the vacuum condensates up to dimension 13 in the operator product *** calculation results indicate that the scalar-diquark-scalar-diquark-antiquark type and axialvector-diquark-axialvector-diquark-antiquark type charmed pentaquark states suscu with J^(p)=1/2^(-) can be possible candidates of the excited states observed in the LHCb collaboration.