Spectroscopy of hidden-heavy tetraquark states with J PC = 0 − − in a color-octet configuration

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2026-10-13 DOI:10.1103/ypmy-m4lv

Bing-Dong Wan,Jun-Hao Zhang,Yan Zhang,Ming-Yang Yuan

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Abstract

Within the QCD sum-rule framework, we investigate hidden-heavy tetraquark channels with the exotic quantum number J PC = 0 − − using four representative local color-octet–octet interpolating currents. The currents include both vector-axialvector and scalar-pseudoscalar Dirac structures. The operator product expansion is carried out up to dimension-eight condensates. The four diagonal sum rules yield mutually consistent mass estimates in the range 10.8–11.1 GeV for the hidden-bottom sector and around 4.3–4.6 GeV for the corresponding hidden-charm sector, with the bottom sector exhibiting the clearest Borel stability. Since local tetraquark currents with the same quantum numbers are related by Fierz rearrangements, the current-dependent results do not by themselves imply four distinct states or uniquely defined internal color structures. We also discuss quantum-number-allowed decay channels and emphasize the absence of the lowest pseudoscalar-pseudoscalar heavy-meson modes for a neutral 0 − − state. The results provide theoretical guidance for future experimental searches at Belle II, LHCb, and BESIII.

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jpc = 0−时重隐藏四夸克态的光谱学−颜色八字节配置

在QCD和规则框架内，我们利用四个具有代表性的局部颜色-八元-八元插值电流，研究了具有奇异量子数J PC = 0−−的重隐藏四夸克通道。电流包括矢量-轴矢量和标量-伪标量狄拉克结构。操作产品膨胀进行到8维凝析油。四个对角线和规则产生了相互一致的质量估计，隐藏底部扇区在10.8-11.1 GeV范围内，相应的隐藏魅力扇区在4.3-4.6 GeV范围内，底部扇区表现出最明显的Borel稳定性。由于具有相同量子数的局部四夸克电流通过Fierz重排相关联，电流相关的结果本身并不意味着四种不同的状态或唯一定义的内部颜色结构。我们还讨论了量子数允许的衰变通道，并强调了中性0−−态的最低伪标量-伪标量重介子模式的缺失。研究结果为未来Belle II、LHCb和BESIII的实验搜索提供了理论指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.