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 . There, due to the particular location in this shell-model space of and , we find that the spectra, '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 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 space the results of calculations with the WBT interaction and with the newer SDPF, denoted SDPF-U, interaction.
- Received 15 December 2008
DOI:https://doi.org/10.1103/PhysRevC.79.054322
©2009 American Physical Society