Analysis of the excited Ωc states as the 1/2± pentaquark states with QCD sum rules

被引：12

作者：

Wang, Hui-Juan ^{[1
,2
]}

Di, Zun-Yan ^{[1
]}

Wang, Zhi-Gang ^{[1
]}

机构：

[1] North China Elect Power Univ, Dept Phys, Baoding 071003, Peoples R China

[2] North China Elect Power Univ, Sch Nucl Sicence & Engn, Beijing 102206, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2021年 / 73卷 / 03期

关键词：

charmed baryon states; charmed pentaquark states; QCD sum rules; VECTOR TETRAQUARK STATES; HEAVY BARYON STATES; CANDIDATES; Y(4360); Y(4660);

D O I：

10.1088/1572-9494/abc7b1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 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 expansion. Our 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 Omega(c) states observed in the LHCb collaboration.

引用

页数：16

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