Travel to MSU (November 2010) for experiment on isobaric analogue states

前往密歇根州立大学（2010年11月）进行同量异位类似态实验

• 批准号: ST/I005874/1
• 负责人: Alison Bruce
• 金额: $ 0.31万
• 依托单位: University of Brighton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FI005874%2F1
• 关键词: Travel; MSU; November; 2010; experiment

Most of the mass of an atom is in the nucleus which contains protons and neutrons with the number of protons defining the chemical element. The nucleus is held together by a balance between the weak force, the Coulomb force which pushes the protons apart and the nuclear force which pulls all the neutrons and protons together. It is a delicate balancing act to calculate the relative strengths of the three forces and there are many models which try to solve this tricky problem. Mirror nuclei are those where the numbers of neutrons and protons are interchanged e.g 52Ni (Z=28 and N=24) and 52Cr (Z=24 and N=28) and by studying these, we can gain an understanding of the Charge dependence of the forces. In this research programme we will produce 52Ni and study its decay properties. These will then be compared with those of 52Cr. The results will be used to refine models of nuclear behaviour which are appropriate in this region.

原子的大部分质量在原子核中，原子核中含有质子和中子，质子的数量决定了化学元素的数量。原子核由弱力、将质子分开的库仑力和将所有中子和质子拉在一起的核力之间的平衡保持在一起。计算三种力量的相对强度是一种微妙的平衡行为，有许多模型试图解决这个棘手的问题。镜像核是那些中子和质子数目互换的核，例如52Ni(Z=28和N=24)和52Cr(Z=24和N=28)，通过研究这些核，我们可以了解力与电荷的关系。在这个研究计划中，我们将生产52Ni并研究它的衰变特性。然后将这些元素与52Cr的元素进行比较。研究结果将用于改进适用于该地区的核行为模型。

项目成果

Mirror energy differences at large isospin studied through direct two-nucleon knockout.

通过直接双核子敲除研究大同位旋的镜像能量差异。

• DOI: 10.1103/physrevlett.111.072501
• 发表时间: 2013
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Davies PJ