Anomalous behavior of the first excited 0${}^{+}$ state in $N\approx Z$ nuclei

Abstract

A study of the energies of the first excited $0^{+}$ states in all even-even $Z$ $\ge$ 8 nuclei reveals an anomalous behavior in some nuclei with $N$ = $Z$, $Z$ $\pm$ 2. We analyze these irregularities in the framework of the shell model. It is shown that proton-neutron correlations play an important role in this phenomenon.

4 pages, 5 figures

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• New effective interaction for $pf$-shell nuclei and its implications for the stability of the $N$=$Z$=28 closed core
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Cited by in corpus (1)

• Shape coexistence in even-even nuclei: A theoretical overview