RUI: An Investigation of Chirality and Signature Inversion in 130 and 160 Mass Regions

目前对核结构和核合成的了解主要是基于对稳定和长寿命近稳定核的性质的已知。一个包含90%以上的预期束缚核系统的未探索景观，一个预计会出现许多新核现象的区域仍然需要探索。对不稳定核的早期实验已经揭示了一些令人惊讶的事情。晕核等现象表明，人们珍视的一些核结构概念可能只适用于一组相对稳定的核。这个项目将从理论上研究160和160质量区的核。这些原子核表现出了许多挑战我们对原子核结构理解的特征，特别令人感兴趣的是特征分裂/反转和“手性孪生带”现象。在不同的模型框架(包括残余pn相互作用和形变的粒子转子模型、总鲁氏面计算、转动壳层和倾斜轴转动模型)中的计算将被用来阐明导致签名分裂/反转和手征双带现象的潜在物理性质。本科生参与这项研究项目将提高学生对物理的兴趣，并为他们为主流学习准备提供一个训练环境。

0204811FeteaCurrent understanding of both nuclear structure and nucleo-synthesis is largely based on what is known of the properties of stable and long-lived near-stable nuclei. An unexplored landscape containing more than 90% of all expected bound nuclear systems, a region where many new nuclear phenomena are anticipated still needs to be explored. Early experiments on unstable nuclei have already revealed surprises. Such phenomena as halo nuclei suggest that some of the cherished concepts of nuclear structure may apply only to a set of relatively stable nuclei.This project will theoretically study, the nuclei in the and 160 mass regions. These nuclei have shown a number of features that challenge our understanding of nuclear structure, of particular interest being the signature splitting/inversion and "chiral twin bands" phenomena. Calculations in various model frameworks (particle rotor model including both a residual pn interaction and a deformation, total routhian surface calculations, cranking shell and tilted axis cranking model) will be performed to elucidate the underlying physical properties responsible for the signature splitting/inversion and "chiral twin bands" phenomena.The involvement of undergraduate students in this research project will enhance students' interest in physics and provide a training environment for their preparation for mainstream study.