Semimicroscopic algebraic description of $\alpha$-clustering in $^{22}$Ne

TL;DR

This paper models the alpha-cluster states in $^{22}$Ne using the semimicroscopic algebraic cluster model, successfully reproducing experimental energy spectra and transition rates, and comparing favorably with microscopic approaches.

Contribution

It introduces the application of the SACM to $^{22}$Ne, providing a detailed band structure and transition analysis that aligns well with experimental data and other microscopic models.

Findings

SACM reproduces the energy spectrum and transition rates of $^{22}$Ne.

Prominent bands in microscopic models have equivalents in SACM.

Good agreement with experimental data, especially for positive-parity states.

Abstract

The alpha-cluster states of $^{22}$Ne are studied within the framework of the semimicroscopic algebraic cluster model (SACM). The band structure, energy spectrum as well as E2 and E1 transitions are calculated and are compared with the experimental data. The results are also compared with those obtained from two microscopic models: the deformed-basis antisymmetrized molecular dynamics (DAMD) approach and the generator-coordinate method (GCM). It is found that the prominent bands obtained in the latter frameworks all have equivalents in the SACM and the agreement between the calculated spectroscopic properties is rather good, especially for positive-parity states.