Structure of low-lying quadrupole states in nuclei near 132Sn

TL;DR

This paper investigates the low-lying 2^+ states in nuclei near 132Sn using quasiparticle RPA with Skyrme interactions, identifying potential mixed-symmetry states in 132Te.

Contribution

It applies a finite rank separable quasiparticle RPA approach with Skyrme interactions to study quadrupole states near 132Sn, highlighting the 4th 2^+ state in 132Te as a mixed-symmetry candidate.

Findings

The 4th 2^+ state in 132Te may be a mixed-symmetry state.

The approach combines Skyrme interactions with a finite rank separable method.

Low-lying quadrupole states are characterized in nuclei near 132Sn.

Abstract

The properties of the low-lying 2^+ states in the even-even nuclei around 132Sn are studied within the quasiparticle random phase approximation. Starting from a Skyrme interaction in the particle-hole channel and a density-dependent zero-range interaction in the particle-particle channel, we use the finite rank separable approach in our investigation. It is found that the fourth 2^+ state in 132Te could be a good candidate for a mixed-symmetry state.