Structure of isovector spin excitations in nuclei

Abstract

The charge-exchange Hartree-Fock random-phase approximation theory is employed in the calculation of isovector spin excitations in nuclei with $N>Z$. Distributions of strength for all three $\Delta {\tau }_z=0,\pm 1$ components of $S=1\mathrm{}$, $L=0,1,2\mathrm{}$, $J=0^{-},1^{-},2^{-}, 1^{+}, 2^{+}, \mathrm{and} 3^{+}$ excitations are calculated. The results for isotopes of Ni and Zr are also presented.