Abstract
We study the role of configuration mixing in the heavier even-even isotopes of argon. We begin by limiting the configurations of the even-even Ar isotopes to $({d}_{3/2}^{2}){}_{\ensuremath{\pi}} ({f}_{7/2}^{n}){}_{\ensuremath{\nu}}$. There, due to the particular location in this shell-model space of $^{40}\mathrm{Ar}$ and $^{44}\mathrm{Ar}$, we find that the spectra, $B(E2)$'s, and magnetic moments of these two nuclei are identical. Any deviation from this equality is direct evidence of configuration mixing. In a larger shell-model space there are significant differences between these two nuclei, with $^{44}\mathrm{Ar}$ being more collective. We also consider other even-even isotopes of argon and study how their nuclear structure effects evolve with N. We compare in the full $0\ensuremath{\hbar} \ensuremath{\omega}$ space $(\mathit{sd}){}_{\ensuremath{\pi}} (\mathit{fp}){}_{\ensuremath{\nu}}$ the results of calculations with the WBT interaction and with the newer SDPF, denoted SDPF-U, interaction.
Submitted Version (
Free)
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call