Construction of isoscalar 2−+ mesonic states inspired by the X(2600) discovery

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

Physical Review D Pub Date : 2024-12-30 DOI:10.1103/physrevd.110.114049

Li-Ming Wang, Wen-Xin Tian, Ting-Yan Li, Cheng-Xi Liu, Xiang Liu

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引用次数: 0

Abstract

The BESIII observation of the X(2600) suggests that one possible assignment for its spin-parity quantum numbers is JPC=2−+. This finding motivates us to systematically revisit isoscalar pseudotensor mesonic states through a comprehensive spectroscopic study. In this work, we employ a potential model to calculate the mass spectrum of isoscalar pseudotensor meson states with varying radial quantum numbers. Additionally, we analyze their strong decay behaviors, as allowed by the Okubo-Zweig-Iizuka rule, using the quark pair creation model. Our findings yield valuable information about their resonant parameters and partial decay widths, which can aid in identifying the observed isoscalar pseudotensor states when combined with current experimental data. Importantly, we also predict several radial excitations of isoscalar pseudotensor mesons that remain unobserved experimentally. Furthermore, we exclude the X(2600) from being classified as an isoscalar pseudotensor meson, which is critical for elucidating the properties of the X(2600).

Published by the American Physical Society

2024

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由X（2600）发现启发的等标量2−+介子态的构造

对X（2600）的BESIII观测表明，其自旋宇称量子数的一个可能赋值是JPC=2−+。这一发现促使我们通过全面的光谱研究系统地重新审视等标量伪张量介子态。在这项工作中，我们采用一个势模型来计算具有不同径向量子数的等标量伪张量介子态的质谱。此外，我们利用夸克对产生模型分析了它们的强衰减行为，正如Okubo-Zweig-Iizuka规则所允许的那样。我们的发现提供了关于它们的共振参数和部分衰减宽度的有价值的信息，当与当前的实验数据相结合时，可以帮助识别观察到的等标量伪张量状态。重要的是，我们还预测了几个在实验中未观察到的等标量伪张量介子的径向激发。此外，我们排除了X（2600）被归类为等标量伪张量介子，这对于阐明X（2600）的性质至关重要。2024年由美国物理学会出版

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.