First experimental test of the ratio method

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2025-04-23 DOI:10.1016/j.nuclphysa.2025.123120

S. Ota , P. Capel , G. Christian , V. Durant , K. Hagel , E. Harris , R.C. Johnson , Z. Luo , F.M. Nunes , M. Roosa , A. Saastamoinen , D.P. Scriven

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引用次数: 0

Abstract

The ratio is a new reaction observable suggested to extract accurately structure information on halo nuclei. It corresponds to the ratio of differential cross sections for scattering and breakup, which is predicted to remove the uncertainty related to the reaction dynamics. We present here the first experimental test of the method for the ¹¹Be + ¹²C collision at

E_{Lab} = 20 A

MeV performed at Texas A&M University. Differential cross sections for scattering and inclusive one-neutron breakup have been measured with the new detector array BlueSTEAl. The ratio of cross sections is very smooth and independent of the projectile-target interaction, which demonstrates the validity of the ratio method. We extend our analysis to existing ¹¹Be + ²⁰⁸Pb data, confirming that the method works well on any target.

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首先对比值法进行实验检验

比值是为准确提取晕核结构信息而提出的一种新的反应观测值。它对应于散射和破裂的微分截面之比，预测它可以消除与反应动力学有关的不确定性。本文介绍了在德克萨斯a&m大学进行的ELab=20A MeV的11Be + 12C碰撞方法的首次实验测试。用新的探测器阵列BlueSTEAl测量了散射和包涵单中子破裂的微分截面。截面比计算结果非常平滑，且不受弹靶相互作用的影响，证明了该方法的有效性。我们将分析扩展到现有的11Be + 208Pb数据，证实该方法适用于任何目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.