Hg 和 Fm 的裂变：比较研究

IF 2.6 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2024-09-23 DOI:10.1140/epja/s10050-024-01415-2

Rémi N. Bernard, Cédric Simenel, Guillaume Blanchon, Ngee-Wein T. Lau, Patrick McGlynn

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引用次数: 0

摘要

实验发现 \(^{180}\)Hg 裂变是不对称的。这一结果出乎意料，因为天真的碎片壳效应研究会支持对称模式是最有可能的。在本研究中，我们利用各种多极矩约束在平均场水平上研究了对称和非对称 \(^{180}\)Hg 裂变模式。从塑造其拓扑结构的壳效应角度分析了势能面，并将其与碎片壳效应联系起来。从 \(^{90}\)Zr 碎片特性的角度解释了低能对称裂变的不发生。在整个研究过程中，还对\(^{264}\)Fm及其对称双魔\(^{132}\)Sn裂变碎片进行了比较。

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Fission of \(^{180}\)Hg and \(^{264}\)Fm: a comparative study

\(^{180}\)Hg is experimentally found to fission asymmetrically. This result was not expected as a naive fragment shell effects study would support the symmetric mode to be the most probable. In the present study we investigate both symmetric and asymmetric \(^{180}\)Hg fission modes at the mean field level using various multipole moment constraints. Potential energy surfaces are analysed in terms of shell effects that shape their topographies and connections to fragment shell effects are made. The non-occurrence of low energy symmetric fission is interpreted in terms of \(^{90}\)Zr fragment properties. Throughout this study a comparison with \(^{264}\)Fm and its symmetric doubly magic \(^{132}\)Sn fission fragments is done.

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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.