Detailed beta-decay study of 33Ar
N. Adimi, R. Dominguez-Reyes, M. Alcorta, A. Bey, B. Blank, M.J.G., Borge, F. de Oliveira Santos, C. Dossat, H.O.U. Fynbo, J. Giovinazzo, H.H., Knudsen, M. Madurga, I. Matea, A. Perea, K. Summerer, O. Tengblad, J.C., Thomas
TL;DR
This study provides a comprehensive decay scheme of 33Ar, including proton and gamma-ray spectroscopy, and compares experimental Gamow-Teller strengths with shell-model predictions to explore nuclear structure and isospin mixing.
Contribution
It offers the first detailed decay scheme of 33Ar with spin assignments and Gamow-Teller strength analysis, advancing understanding of proton-rich nuclei.
Findings
Established a quasi complete decay scheme of 33Ar
Determined Gamow-Teller strength distribution and quenching factor
Identified states near the isobaric analogue state for isospin mixing
Abstract
The proton-rich nucleus 33Ar has been studied by detailed proton and gamma-ray spectroscopy at the low-energy facility of SPIRAL at GANIL. Proton and gamma-ray singles and coincidence measurements allowed to establish a quasi complete decay scheme of this nucleus. By comparing the proton intensity to different daughter states, tentative spin assignments have been made for some of the states of 33Cl. The Gamow-Teller strength distribution is deduced and compared to shell-model calculations and a quenching factor is determined. States close to the isobaric analogue state are searched for with respect to isospin mixing.
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