通过 QCD 和则分析隐和-隐奇异四夸克质量谱

IF 2.5 3区 物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS
Zhi-Gang Wang
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引用次数: 0

摘要

在本研究中,我们构建了二夸克-反夸克型四夸克电流,通过传统的QCD和则全面研究了量子数JPC=0++、1+-、1++和2++的基态隐-谐-隐-奇四夸克态的质量谱。我们更新了旧的计算,以严谨的方式进行了新的计算和分析,并以一致的方式考虑了净光味 SU(3) 破缺效应。我们对 X(3960)、X(4140)、X(4274)、X(4500)、X(4685)和 X(4700)进行了更合理的识别,并取代了一些旧的识别。此外,我们还考虑了以前的理论预测,并对新的 LHCb 状态 hc(4000) 和 χc1(4010)进行了合理/合适的鉴定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of the hidden-charm-hidden-strange tetraquark mass spectrum via the QCD sum rules

In the present work, we construct the diquark-antidiquark type four-quark currents to investigate the mass spectrum of the ground state hidden-charm-hidden-strange tetraquark states with the quantum numbers JPC=0++, 1+, 1++ and 2++ via the traditional QCD sum rules in a comprehensive way. We update old calculations, perform new calculations and analysis in a rigorous way, and take account of the net light-flavor SU(3) breaking effects in a consistent way. And we make more reasonable identifications for the X(3960), X(4140), X(4274), X(4500), X(4685) and X(4700) and supersede some old identifications. Furthermore, we consider our previous theoretical predictions, and make reasonable/suitable identifications of the new LHCb states hc(4000) and χc1(4010).

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来源期刊
Nuclear Physics B
Nuclear Physics B 物理-物理:粒子与场物理
CiteScore
5.50
自引率
7.10%
发文量
302
审稿时长
1 months
期刊介绍: Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.
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