Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions
Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions
复制标题
DOI：
10.1142/s0217732310000575
复制
发表时间：
2010-07
影响因子：
1.4
通讯作者：
M. Bentley;I. Paterson;J. Brown;M. Taylor;C. Diget;P. Adrich;D. Bazin;J. Cook;A. Gade;T. Glasmacher;S. Mcdaniel;A. Ratkiewicz;K. Siwek;D. Weisshaar;B. Pritychencko;S. Lenzi
中科院分区：
文献类型：
--
作者：
M. Bentley;I. Paterson;J. Brown;M. Taylor;C. Diget;P. Adrich;D. Bazin;J. Cook;A. Gade;T. Glasmacher;S. Mcdaniel;A. Ratkiewicz;K. Siwek;D. Weisshaar;B. Pritychencko;S. Lenzi
近年来，对同压多重态的激发态进行了伽玛能谱研究，以期定量地了解激发态之间在一定范围内的库仑和其他同位旋破坏现象之间的能量差异。最近，通过研究镜像碎裂反应中的镜像核的等压相似态，扩大了实验方案。在本报告中，将总结关于$T_z=\fRAC{3}{2}$镜面对53Ni/53Mn中的$T=\FRAC{3}{2}$模拟状态的最新结果。在这项工作中，进一步的证据表明，为了解释实验数据，除了预期的库仑贡献外，还需要包括J=2的角动量耦合的反常同位旋破缺二体矩阵元。
A Gamma-ray spectroscopic study of excited states of isobaric multiplets has been performed in recent years, with a view to gaining a quantitative understanding of energy differences between excited states in terms of a range of Coulomb and other isospin breaking phenomena. Recently, the experimental programme has been augmented by a study of isobaric analogue states of mirror nuclei populated in mirrored fragmentation reactions. In this presentation, recent results on the $T =\frac{3}{2}$ analogue states in the $T_z =\pm \frac{3}{2}$ mirror pair 53Ni/53Mn will be summarised. In this work, further strong evidence is found for the need to include an anomalous isospin-breaking two-body matrix element for angular-momentum couplings of J = 2, in addition the expected Coulomb contribution, in order to account for the experimental data.