全轻四夸克的质量和衰变特性研究

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Few-Body Systems Pub Date : 2024-11-12 DOI:10.1007/s00601-024-01968-4

Chetan Lodha, Ajay Kumar Rai

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引用次数: 0

摘要

我们利用半相对论和非相对论框架研究了离子和所有轻四夸克的质量谱和衰变特性。通过应用类似康奈尔势和自旋相关势，我们生成了质量谱。利用湮灭模型和旁观者模型评估了四夸克的衰变特性。对量子数（J^{PC} = 0^{{+}{+}}, 0^{{-}{+}}, 1^{{-}{+}}, 1^{{+}{-}}, 1^{{-}{-}}, 2^{{+}{-}}, 2^{{-}{+}}, \）和（2^{{-}{-}\）的潜在四夸克候选体进行了解释。）此外，我们还将结果与现有的实验数据和理论预测进行了比较，以验证我们的发现。这项研究的目的是加深人们对轻-轻部门四夸克的理解。

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Investigation of Mass and Decay Characteristics of the All-light Tetraquark

We investigate the mass spectra and decay properties of pions and all light tetraquarks using both semi-relativistic and non-relativistic frameworks. By applying a Cornell-like potential and a spin-dependent potential, we generate the mass spectra. The decay properties of tetraquarks are evaluated using the annihilation model and the spectator model. Potential tetraquark candidates are interpreted for quantum numbers \(J^{PC} = 0^{{+}{+}}, 0^{{-}{+}}, 1^{{-}{+}}, 1^{{+}{-}}, 1^{{-}{-}}, 2^{{+}{-}}, 2^{{-}{+}},\) and \(2^{{-}{-}}\). Additionally, we compare our results with existing experimental data and theoretical predictions to validate our findings. This study aims to enhance the understanding of tetraquarks in the light-light sector.

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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).