探索中间核谱在二核子转移过程中对增强的作用

IF 2.8 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-09-09 DOI:10.1140/epja/s10050-025-01663-w

G. Singh

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引用次数: 0

摘要

当通过双中子转移反应从A核形成（A+2）核时，通过中间（A+1）核的连续体进行配对会引起许多可能的反应通道的建设性干涉，从而导致截面的显着配对增强。本文从不同的配对场和不同的连续体导致（a +2）核形成的角度，对这种情况进行了更一般的分析。我考虑\(^6\) He和\(^{22}\) C，描述为在\(^5\) He和\(^{21}\) C的轨道上分别容纳两个中子。这里考察的不同可能情况（包括假设结合的核系统）表明，连续统相关性对系统中观察到的配对增强的扩展至关重要。

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Exploring the role of intermediate nucleus spectrum on pairing enhancement in a two-nucleon transfer process

While forming an (A+2) nucleus from a nucleus A via a two-neutron transfer reaction, pairing through the continuum of the intermediate (A+1) nucleus causes the constructive interference of the many possible reaction channels resulting in significant pairing enhancement of cross-sections. This work analyses the situation in more generality, from the point of view of a varying pairing field and different continua leading to the formation of (A+2) nucleus. I consider \(^6\)He and \(^{22}\)C, described as housing two-neutrons in orbitals of \(^5\)He and \(^{21}\)C, respectively. The different possible situations examined here (including hypothetically bound nuclear systems) manifest that the continuum correlations are extremely crucial to the extension of the pairing enhancement observed in the system.

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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.