Spectroscopy of \(cc{\bar{c}}{\bar{c}}\) and \(ss{\bar{c}}{\bar{c}}\) Tetraquarks within the Framework of Regge Phenomenology

IF 1.8 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Few-Body Systems Pub Date : 2025-09-30 DOI:10.1007/s00601-025-02011-w

Vandan Patel, Juhi Oudichhya, Ajay Kumar Rai

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引用次数: 0

Abstract

In this work, we investigate the mass spectra of all-charm (\(cc{\bar{c}}{\bar{c}}\)) and doubly strange- doubly charm (\(ss{\bar{c}}{\bar{c}}\)) tetraquark states using the framework of Regge phenomenology. Employing a quasi-linear Regge trajectory ansatz, we derive linear and quadratic mass inequalities for hadrons, which provide constraints on the masses of tetraquark states. We estimate the range of ground state masses of \(cc{\bar{c}}{\bar{c}}\) tetraquarks and determine the Regge slope parameters by fitting the corresponding \((J, M^2)\) trajectories. These parameters are then utilized to predict the mass spectra of orbital excited states of both \(cc{\bar{c}}{\bar{c}}\) and \(ss{\bar{c}}{\bar{c}}\) systems in the \((J, M^2)\) plane. Furthermore, we extend our analysis to radial excitations by exploring Regge trajectories in the \((n, M^2)\) plane. The obtained mass predictions are compared with existing theoretical results from various models. Additionally, we discuss the possible identification of the experimentally observed \(\psi (4660)\) and \(\chi _{c0}(4700)\) resonances as tetraquark candidates. The results presented in this study offer useful benchmarks for future experimental investigations and may assist in the spin-parity assignment of exotic hadronic states. Our findings contribute to a deeper understanding of multiquark dynamics and the spectroscopy of exotic hadrons within the framework of Quantum Chromodynamics.

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Regge现象学框架下\(cc{\bar{c}}{\bar{c}}\)和\(ss{\bar{c}}{\bar{c}}\)四夸克的光谱学

在这项工作中，我们使用Regge现象学的框架研究了全粲（\(cc{\bar{c}}{\bar{c}}\)）和双奇异-双粲（\(ss{\bar{c}}{\bar{c}}\)）四夸克态的质谱。利用准线性Regge轨迹分析，我们导出了强子的线性和二次质量不等式，这些不等式提供了对四夸克态质量的约束。我们估计了\(cc{\bar{c}}{\bar{c}}\)四夸克的基态质量范围，并通过拟合相应的\((J, M^2)\)轨迹确定了Regge斜率参数。然后利用这些参数来预测\((J, M^2)\)平面上\(cc{\bar{c}}{\bar{c}}\)和\(ss{\bar{c}}{\bar{c}}\)系统的轨道激发态的质谱。此外，我们通过探索\((n, M^2)\)平面上的Regge轨迹将我们的分析扩展到径向激励。得到的质量预测结果与现有的各种模型的理论结果进行了比较。此外，我们还讨论了实验观察到的\(\psi (4660)\)和\(\chi _{c0}(4700)\)共振作为四夸克候选者的可能识别。本研究结果为未来的实验研究提供了有用的基准，并可能有助于奇异强子态的自旋宇称赋值。我们的发现有助于在量子色动力学的框架内对多夸克动力学和外来强子的光谱有更深的理解。

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

Few-Body Systems 物理-物理：综合

CiteScore

2.90

自引率

18.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Few-Body Systems presents original research work – experimental, theoretical and computational – investigating the behavior of any classical or quantum system consisting of a small number of well-defined constituent structures. The focus is on the research methods, properties, and results characteristic of few-body systems. Examples of few-body systems range from few-quark states, light nuclear and hadronic systems; few-electron atomic systems and small molecules; and specific systems in condensed matter and surface physics (such as quantum dots and highly correlated trapped systems), up to and including large-scale celestial structures. Systems for which an equivalent one-body description is available or can be designed, and large systems for which specific many-body methods are needed are outside the scope of the journal. The journal is devoted to the publication of all aspects of few-body systems research and applications. While concentrating on few-body systems well-suited to rigorous solutions, the journal also encourages interdisciplinary contributions that foster common approaches and insights, introduce and benchmark the use of novel tools (e.g. machine learning) and develop relevant applications (e.g. few-body aspects in quantum technologies).