Possible triply heavy tetraquark states in a chiral quark model

被引：3

作者：

Liu, Xuejie ^{[1
]}

Tan, Yue ^{[2
]}

Chen, Dianyong ^{[1
,3
]}

Huang, Hongxia ^{[4
]}

Ping, Jialun ^{[4
]}

机构：

[1] Southeast Univ, Sch Phys, Nanjing 210094, Peoples R China

[2] Yancheng Inst Technol, Sch Math & Phys, Yancheng, Peoples R China

[3] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Lanzhou 730000, Peoples R China

[4] Nanjing Normal Univ, Dept Phys, Nanjing 210023, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 05期

基金：

中国国家自然科学基金;

关键词：

MESON RESONANCES; OPEN-CHARM; X(3872); DECAYS; QQ(Q)OVER-BAR(Q)OVER-BAR; MASSES;

D O I：

10.1103/PhysRevD.107.054019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the present work, the triply heavy tetraquarks states QQ Q over bar q over bar with Q = (c; b) and q = (u; d; s) with all possible quantum numbers are systematically investigated in the framework of the chiral quark model with the resonating ground method. Two kinds of structures, including the meson-meson configuration (the color-singlet channels and the hidden-color channels) and the diquark-antidiquark configuration (the color sextet-antisextet and the color triplet-antitriplet), are considered. In the considered system, several bound states are obtained for the ccc over bar q', bbc over bar q', and bcc over bar q over bar tetraquarks. From the present estimations, we find that the coupled-channel effect is of great significance for forming below-threshold tetraquark states, which are stable for strong decays.

引用

页数：19

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