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arXiv · 0810.2996

Nuclear Structure of the even-even Argon isotopes with a focus on magnetic moments

S. J. Q. Robinson·Y. Y. Sharon·L. Zamick
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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 $(d_{3/2}^2)_π$ $(f_{7/2}^n)_ν$. There, due to the particular location in this shell model space of $^{40}$Ar and $^{44}$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 $^{44}$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$\hbar ω$ space $(sd)_π$ $(fp)_ν$ the results of calculations with the WBT interaction and with the newer SDPF, denoted SDPF-U, interaction.

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S. J. Q. Robinson, Y. Y. Sharon, L. Zamick. 2009-04-06. Nuclear Structure of the even-even Argon isotopes with a focus on magnetic moments. https://doi.org/10.1103/physrevc.79.054322

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