Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2025-01-24 DOI:10.1016/j.nuclphysa.2025.123023

S. Pigliapoco , M.L. Cortés , F. Recchia , S.M. Lenzi , M.A. Bentley , P. Doornenbal , A. Jungclaus , K. Wimmer , L. Zago , D. Rudolph , F. Browne , T. Koiwai , H. Sakurai , T. Arici , A. Fernández , J.A. Tostevin , N. Imai , N. Kitamura , B. Longfellow , R. Lozeva , R. Yajzey

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引用次数: 0

Abstract

This study reports the status of the first in-beam γ-ray spectroscopic study of excited states in the exotic neutron-deficient

T_{z} =

-3/2 nucleus ⁵⁵Cu. The nucleus was produced via knock-out reactions at the Radioactive Isotope Beam Factory, located at the RIKEN-Nishina Center. Several γ-ray transitions were detected using the DALI2⁺ γ-ray detector array. The comparison with isobaric analogue states in the mirror nucleus ⁵⁵Fe will provide valuable insights into isospin-non-conserving effects beyond nuclear stability. The proton occupation of the 1

p_{3 / 2}

orbital is expected to play a significant effect on the orbital's charge radius due to the isovector monopole polarizability, which can be linked to the measured mirror energy differences.

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本研究报告了对异种中子缺陷 Tz=-3/2 核 55Cu 的激发态进行的首次束内 γ 射线光谱研究的情况。该原子核是在位于理化学研究所西奈中心的放射性同位素光束工厂通过淘汰反应产生的。使用 DALI2+ γ 射线探测器阵列探测到了几种γ 射线跃迁。与镜像核 55Fe 中的等压类似态的比较将为了解核稳定性之外的等空素非守恒效应提供有价值的见解。由于等矢量单极极化性，质子占据 1p3/2 轨道预计会对轨道的电荷半径产生重大影响，这可以与测量到的镜像能量差异联系起来。

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.

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu

Abstract

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu