具有配置 \(q\bar{q}QQQ\ 和 \(qqQQ\bar{Q}\) 的三重五夸克的现象学分析)

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, NUCLEAR
Ankush Sharma, Alka Upadhyay
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引用次数: 0

摘要

我们系统地分析了s波三重五夸克的可能构型,如(q=u, d, s)和(Q=c, b)夸克。我们利用特殊的单位表示来研究三重五夸克态的分类方案。借助苏(3)味道表示,我们把\(q\bar{q}QQ\)型五夸克分为八重构型,把\(qqQQ\bar{Q}\)型五夸克分为六重构型。同时,在 SU(2) 自旋表示的帮助下,我们研究了基态三重五夸克可能的自旋分配(\(\frac{1}{2}^-\)、\(\frac{3}{2}^-\)和\(\frac{5}{2}^-\))。此外,我们还使用了扩展的古尔赛-拉迪卡提质量公式和有效质量方案来估计三重五夸克的质量。此外,我们还利用有效质量和屏蔽电荷方案计算了磁矩赋值。预测结果与现有理论数据非常吻合,有利于未来的研究。我们的工作提供了一个综合框架,将 SU(3) 和 SU(2) 对称性的理论方面与观测指标的实际预测相结合,为实验验证奠定了坚实的基础。这种综合方法增强了我们对三重五夸克内部复杂相互作用的理解,并强调了它们在深入探测强力动力学方面的潜在作用。这些发现对于设计未来的高能实验直接观测这些奇异态并确认其特性至关重要,从而为深入了解量子色动力学铺平道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phenomenological analysis of triply heavy pentaquarks with configurations \(q\bar{q}QQQ\) and \(qqQQ\bar{Q}\)

We carried out the systematic analysis of the s-wave triply heavy pentaquarks with possible configurations like \(q\bar{q}QQQ\) and \(qqQQ\bar{Q}\), (\(q = u, d, s\) and \(Q = c, b\) quarks). Special unitary representations are utilized to study the classification scheme for triply heavy pentaquark states. We classified the \(q\bar{q}QQQ\)-type pentaquarks into an octet and \(qqQQ\bar{Q}\)-type pentaquarks into sextet configurations with the help of SU(3) flavor representation. Also, with the help of SU(2) spin representation, we studied the possible spin assignments (\(\frac{1}{2}^-\), \(\frac{3}{2}^-\), and \(\frac{5}{2}^-\)) for ground state triply heavy pentaquarks. Furthermore, we used the formalism of the extended Gursey–Radicati mass formula and effective mass scheme to estimate the masses of triply heavy pentaquarks. Additionally, we calculated the magnetic moment assignments using the effective mass and screened charge schemes. The predicted outcomes align well with the existing theoretical data and benefit future studies. Our work provides a comprehensive framework that combines the theoretical aspects of SU(3) and SU(2) symmetries with practical predictions for observables, offering a strong foundation for experimental verification. This integrated approach enhances our understanding of the complex interactions within triply heavy pentaquarks and underscores their potential role in probing deeper into the dynamics of the strong force. These findings are crucial for designing future high-energy experiments that directly observe these exotic states and confirm their properties, paving the way for new insights into quantum chromodynamics.

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来源期刊
The European Physical Journal A
The European Physical Journal A 物理-物理:核物理
CiteScore
5.00
自引率
18.50%
发文量
216
审稿时长
3-8 weeks
期刊介绍: Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.
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