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arXiv 2501.15909nucl-th
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敲出反应中的核心屏蔽效应

Core screening effect in knockout reactions

Shichang Li, Junchen Pei, Danyang Pang

AI总结:

针对单核子敲出反应中光谱因子淬灭之谜,提出核心屏蔽效应,通过密度依赖抑制核心内单粒子波函数,显著降低淬灭因子的同位旋依赖性,深化核反应机制理解。

摘要:

单核子敲出反应中,光谱因子随分离能不对称性的系统性淬灭仍是一个谜。我们提出一种核心屏蔽效应,以考虑当弹核中强束缚核子被重离子靶移除时所受到的阻碍。核心屏蔽效应被模拟为弹核核心内部单粒子波函数的密度依赖抑制。我们的研究表明,参数化的核心屏蔽效应能显著降低淬灭因子的同位旋依赖性,为核反应机制提供了见解。

英文摘要:

The systematic quenching of spectroscopic factors in terms of separation energy asymmetry in single-nucleon knockout reactions remains a puzzle. We propose a core screening effect to consider the hindrance when strongly bound nucleons in the projectile nucleus are removed by the heavy-ion target. The core screening effect is simulated as a density dependent suppression of single-particle wave functions inside the core of projectile. Our study shows that the parameterized core screening effect can significantly reduce the isospin dependence of quenching factors, offering insights into nuclear reaction mechanisms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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