Halo-EFT：研究晕核反应的有效且高效工具
Halo-EFT: an effective and efficient tool to study reactions with halo nuclei
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中文总结 AI 辅助
该研究提出Halo-EFT工具，将其融入反应代码，用于分析晕核实验数据，通过贝叶斯方法研究19C库仑破裂，还扩展该理论检验11Be库仑破裂对谱学因子的敏感性。
中文摘要 AI 辅助
晕核是奇异核，其物质半径远大于同量异位素，这种特殊尺寸现被理解为阈值效应，即一个或两个价核子松散结合于核芯。得益于这种松散结合，晕核呈现强集团化结构，致密核芯周围环绕弥散的中子晕。因寿命短，晕核主要通过破裂等反应研究。本文表明，在现有反应代码中融入Halo Effective Field Theory（晕核有效场论），对分析实验数据兼具有效性与高效性。我们首先将该思路应用于贝叶斯方法研究19C的库仑破裂，其次扩展Halo-EFT以包含核芯激发，从而检验11Be的库仑破裂对谱学因子的敏感性。
英文摘要
Halo nuclei are exotic nuclei, which exhibit a much larger matter radius than their isobars. This unusual size is now understood as a threshold effect, in which one or two valence nucleons are loosely bound to the core of the nucleus. Thanks to this loose binding, halo nuclei exhibit a strongly clusterised structure with a diffuse neutron halo surrounding a compact core. Being short lived, halo nuclei are mostly studied through reactions, such as breakup. In this talk we show that including Halo Effective Field Theory within existing reaction codes is both effective and efficient to analyse experimental data. We first apply this idea to study the Coulomb breakup of 19C within a Bayesian approach. Second, we extend Halo-EFT to include the core's excitation to test the sensitivity of the Coulomb breakup of 11Be on spectroscopic factors.
发表机构
- Johannes Gutenberg-Universität（约翰内斯·古腾堡大学）
- Ohio University（俄亥俄大学）
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