Interplay between one-particle and collective degrees of freedom in nuclei

TL;DR

This paper reviews key developments in nuclear-structure physics related to the interplay of one-particle and collective degrees of freedom, emphasizing theoretical and experimental insights from the Copenhagen School.

Contribution

It provides a personal overview of recent topics including particle-vibration coupling, high-spin physics, triaxial shapes, drip line nuclei, and oblate shell structures.

Findings

Vibration studied via particle-vibration coupling

High-spin physics insights from yrast spectroscopy

Shell structure changes at drip lines and in oblate nuclei

Abstract

Some developments of nuclear-structure physics uniquely related to Copenhagen School are sketched based on theoretical considerations versus experimental findings and one-particle versus collective aspects. Based on my personal overview I pick up the following topics; (1) Study of vibration in terms of particle-vibration coupling; (2) One-particle motion in deformed and rotating potentials, and yrast spectroscopy in high-spin physics; (3) Triaxial shape in nuclei: wobbling motion and chiral bands; (4) Nuclear structure of drip line nuclei: in particular, shell-structure (or magic numbers) change and spherical or deformed halo phenomena; (5) shell structure in oblate deformation.