Gross features of the spectrum of the 36Ar nucleus

TL;DR

This paper uses multiconfigurational dynamical symmetry (MUSY) to describe the gross spectral features of the 36Ar nucleus across various energy states and deformations, unifying different reaction data.

Contribution

It applies MUSY with SU(3) quantum numbers to successfully reproduce the gross spectral features of 36Ar, demonstrating the coexistence of cluster configurations in shape isomers.

Findings

MUSY reproduces spectral features reasonably well

Multiconfigurational symmetry is valid across energy valleys

Different cluster configurations coexist in shape isomers

Abstract

Samples of the spectrum of the 36Ar nucleus are known in different energy windows. In addition to the ground state region (GS), the superdeformed (SD) state is observed, too, and there is a good candidate for the hyperdeformed (HD) one, as well. They are populated in different reactions. We intend to describe the gross features of the spectra of different energies, deformations and reactions in a unified way. We apply the multiconfigurational dynamical symmetry (MUSY). The SU(3) quantum numbers of the shape isomers from previous studies pave the way for this description. The MUSY reproduces the gross features of the spectra to a reasonable approximation. The energy spectrum of the three valleys (GS, SD, HD) indicates that the multiconfigurational symmetry is valid to a good approximation, and different cluster configurations coexist in the shape isomers.