First results from measurements of capture reactions on Sn and Pd for the γ-process using HECTOR

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.2025.123124

J.P. McDonaugh, A. Simon, C. Jones, J. Koros, M. Matney, L. Zimmer, T.L. Bailey, C. Boomershine, S. Carmichael, R. Fang, D. Robertson, E. Stech

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引用次数: 0

Abstract

The formation of p-nuclei and their abundances are an important and ongoing study in nuclear astrophysical measurements. To understand and constrain theoretical models on the abundances of p-nuclei, further measurements of reactions on relevant nuclei and important branching points of the γ-process are needed. For this purpose the cross sections of (p,γ) reactions on ^112,114,116Sn and ¹⁰⁸Pd(p,γ)¹⁰⁹Ag over a combined energy range of

E_{p}

=2.5-4 MeV and

E_{p}

=2.1-3.5 MeV for Sn and Pd respectively, were investigated. These measurements were performed using the 5U accelerator at the Nuclear Science Laboratory at the University of Notre Dame. Preliminary yield results from the experiments will be discussed.

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第一个结果来自于用HECTOR测量Sn和Pd的俘获反应

在核天体物理测量中，p核的形成及其丰度是一个重要而持续的研究课题。为了理解和约束p核丰度的理论模型，需要进一步测量相关原子核上的反应和γ-过程的重要分支点。为此，研究了112,114,116Sn和108Pd(p,γ)109Ag在Ep=2.5-4 MeV和Ep=2.1-3.5 MeV组合能量范围内Sn和Pd的（p,γ）反应截面。这些测量是在圣母大学核科学实验室的5U加速器上进行的。本文将讨论实验的初步产率结果。

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.