Isovector Giant Dipole Resonance from the 3D Time-Dependent Density Functional Theory for Superfluid Nuclei

TL;DR

This paper employs an advanced 3D time-dependent density functional theory including pairing to accurately model isovector giant dipole resonances in various deformed superfluid nuclei, aligning well with experimental photo-absorption data.

Contribution

It extends symmetry-unrestricted time-dependent density functional theory to include pairing, enabling detailed calculations of giant dipole resonances in deformed superfluid nuclei.

Findings

Good agreement with experimental photo-absorption cross-sections

Effective modeling for deformed open-shell nuclei

Validation of Skyrme force parametrizations SkP and SLy4

Abstract

A fully symmetry unrestricted Time-Dependent Density Functional Theory extended to include pairing correlations is used to calculate properties of the isovector giant dipole resonances of the deformed open-shell nuclei 172Yb (axially deformed), 188Os (triaxially deformed), and 238U (axially deformed), and to demonstrate good agreement with experimental data on nuclear photo-absorption cross-sections for two different Skyrme force parametrizations of the energy density functional: SkP and SLy4.