Charmonium光谱及其衰减特性

IF 2.8 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-09-05 DOI:10.1140/epja/s10050-025-01671-w

Zaki Ahmad, Ishrat Asghar, Bilal Masud, M. Atif Sultan

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引用次数: 0

摘要

在这项工作中，我们利用非相对论夸克势（NRQP）模型计算了charmonium （\(c\overline{c}\)）的质谱、辐射衰减和强衰减。通过数值求解径向Schrödinger方程计算波函数，进而计算（\(c\overline{c}\)）态的辐射衰减宽度。利用\(^3P_0\)模型利用简谐波波函数计算强衰减宽度。通过拟合数值波函数，计算了不同\(c\overline{c}\)状态下的SHO参数\(\beta \)值。我们还与实验数据和其他理论预测结果进行了比较。我们将\(\eta _c(3S)\), \(\chi _1(2P)\), \(\chi _0(2P)\)和\(\chi _2(3P)\)态的可能量子数分配给调和态X(3940)， X(3872)， X(3862)， X（4350）。

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Charmonium spectrum and its decay properties

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Charmonium spectrum and its decay properties

In this work, we have calculated the mass spectrum, radiative decays, and strong decays of charmonium (\(c\overline{c}\)) by using the non-relativistic quark potential (NRQP) model. The wave functions are calculated by solving the radial Schrödinger equation numerically, which are further used to compute the radiative decay widths of (\(c\overline{c}\)) states. The \(^3P_0\) model is used to calculate the strong decay widths by using the simple harmonic (SHO) wave functions. The SHO parameter \(\beta \) values for different \(c\overline{c}\) states are calculated by fitting it to the numerical wave functions. We also compare our results with experimental data and other theoretically predicted results. We assign to the charmonium states X(3940), X(3872), X(3862), X(4350) likely quantum numbers of \(\eta _c(3S)\), \(\chi _1(2P)\), \(\chi _0(2P)\) and \(\chi _2(3P)\) states.

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来源期刊

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.