Collective rotation from ab initio theory

TL;DR

This paper reviews how ab initio nuclear theory calculations, specifically NCCI methods, can predict and analyze rotational phenomena in p-shell nuclei, demonstrating consistency with experimental data.

Contribution

It demonstrates the ability of ab initio methods to predict nuclear rotational structures and compares these predictions with experimental observations.

Findings

NCCI calculations reveal rotational bands in p-shell nuclei

Predicted rotational properties align with experimental data

Results are robust across different internucleon interactions

Abstract

Through ab initio approaches in nuclear theory, we may now seek to quantitatively understand the wealth of nuclear collective phenomena starting from the underlying internucleon interactions. No-core configuration interaction (NCCI) calculations for p-shell nuclei give rise to rotational bands, as evidenced by rotational patterns for excitation energies, electromagnetic moments, and electromagnetic transitions. In this review, NCCI calculations of 7-9Be are used to illustrate and explore ab initio rotational structure, and the resulting predictions for rotational band properties are compared with experiment. We highlight the robustness of ab initio rotational predictions across different choices for the internucleon interaction.