Analysis of the 1/2± pentaquark states in the diquark model with QCD sum rules

被引：0
|
作者：
Wang, Zhi-Gang [1 ]
Huang, Tao [2 ,3 ]
机构：
[1] North China Elect Power Univ, Dept Phys, Baoding 071003, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Ctr Theoret Phys, Sci Facil, Beijing 100049, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 01期
关键词：
HEAVY BARYON STATES; VECTOR TETRAQUARK STATES; REANALYSIS; Z(C)(4020); Z(B)(10610); RESONANCE; MASSES;
D O I：
10.1140/epjc/s10052-016-3880-8
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In this article, we present the scalar-diquark-scalar-diquark-antiquark type and scalar-diquark-axial-vector-diquark-antiquark type pentaquark configurations in the diquark model, and study the masses and pole residues of the J(P) = 1/2(+/-) hidden-charm pentaquark states in detail with the QCD sum rules by extending our previous work on the J(P) = 3/2(-) and 5/2(+) hidden-charm pentaquark states. We calculate the contributions of the vacuum condensates up to dimension-10 in the operator product expansion by constructing both the scalar-diquark-scalar-diquark-antiquark type and the scalar-diquark-axialvector-diquark-antiquark type interpolating currents. The present predictions of the masses can be confronted to the LHCb experimental data in the future.
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页码：1 / 14
页数：14
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