High-spin structures of ${}^{86,87,88,89}$Y: a shell model interpretation

Abstract

In this work nuclear structure properties of ${}^{86,87,88,89}$Y isotopes have been investigated using large-scale shell-model calculations within the full $f_{5/2}p{g}_{9/2}$ model space. The calculations have been performed with JUN45 and jj44b effective interactions that have been proposed for use in the $f_{5/2}$, $p_{3/2}$, $p_{1/2}$, $g_{9/2}$ model space for both protons and neutrons. Reasonable agreement between experimental and calculated values are obtained. This work will add more information to previous study by projected shell model [Eur. Phys. J. A 48, 138 (2012)] where full-fledged shell model calculations proposed for these nuclei.

8 pages, 5 figures

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• High-spin structures of ${}_{54}^{136}$Xe, ${}_{55}^{137}$Cs, ${}_{56}^{138}$Ba, ${}_{57}^{139}$La, and ${}_{58}^{140}$Ce : A shell model description