折叠程序\(\Omega \) - \(\alpha \)电位

IF 1.7 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
I. Filikhin, R. Ya. Kezerashvili, B. Vlahovic
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引用次数: 0

摘要

利用折叠过程,我们研究了\(\Omega \) + \(\alpha \)系统的束缚态。先前的理论分析表明,存在一个深束缚基态,这是由于强大的\(\Omega \) -核子相互作用。通过在α粒子中采用成熟的核子密度参数化,我们对折叠\(\Omega \) - \(\alpha \)势进行了数值计算。我们的结果表明,\(V_{\Omega \alpha }(r)\)势可以使用Woods-Saxon函数精确地拟合,在渐近区域具有一个现象学参数\(R = 1.1A^{1/3} \approx 1.74\) fm (\(A=4\)),其中\(2< r < 3\) fm。我们提供了相应数值过程的详细描述。我们对聚类模型中\(\Omega \) + \(\alpha \)系统结合能的评估与之前和最近报道的结果一致。为了进一步验证折叠过程,我们还基于ESC08c Y-N Nijmegen模型的模拟计算了\(\Xi \) - \(\alpha \)折叠电位。对\(\Xi \) - \(\alpha \)折叠势和\(\Xi \) - \( \alpha \)现象学势进行了全面的比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Folding Procedure for \(\Omega \)-\(\alpha \) Potential

Using the folding procedure, we investigate the bound state of the \(\Omega \)+\(\alpha \) system. Previous theoretical analyses have indicated the existence of a deeply bound ground state, which is attributed to the strong \(\Omega \)-nucleon interaction. By employing well-established parameterizations of nucleon density within the alpha particle, we performed numerical calculations for the folding \(\Omega \)-\(\alpha \) potential. Our results show that the \(V_{\Omega \alpha }(r)\) potential can be accurately fitted using a Woods-Saxon function, with a phenomenological parameter \(R = 1.1A^{1/3} \approx 1.74\) fm (\(A=4\)) in the asymptotic region where \(2< r < 3\) fm. We provide a thorough description of the corresponding numerical procedure. Our evaluation of the binding energy of the \(\Omega \)+\(\alpha \) system within the cluster model is consistent with both previous and recent reported findings. To further validate the folding procedure, we also calculated the \(\Xi \)-\(\alpha \) folding potential based on a simulation of the ESC08c Y-N Nijmegen model. A comprehensive comparison between the \(\Xi \)-\(\alpha \) folding and \(\Xi \)-\( \alpha \) phenomenological potentials is presented and discussed.

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来源期刊
Few-Body Systems
Few-Body Systems 物理-物理:综合
CiteScore
2.90
自引率
18.80%
发文量
64
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).
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