Mo98(p, d)Mo97reaction and core coupling inMo97andNb97

Abstract

The $^{98}\mathrm{Mo}(p, d)^{97}\mathrm{Mo}$ reaction has been used at a bombarding energy of 38.6 MeV to populate neutron hole states of $^{97}\mathrm{Mo}$. Excitation energies and angular distributions were measured for levels up to 4.5 MeV in excitation. A distorted-wave-Born-approximation analysis was used to make $l$ assignments and to obtain spectroscopic factors. Three distinct groups of weakly excited levels, one corresponding to $l=4$ and two corresponding to $l=1$, were observed lying above 2.7 MeV excitation. A hole-core-coupling model is used to predict the properties of $^{97}\mathrm{Mo}$ and $^{97}\mathrm{Nb}$ and good agreement with the experiment is obtained.NUCLEAR REACTIONS, NUCLEAR STRUCTURE $^{98}\mathrm{Mo}(p, d)$, $E=38.6$ MeV; measured $\ensuremath{\sigma}(\ensuremath{\theta})$, $^{97}\mathrm{Mo}$ levels; deduced $l$, $S$; calculated $J$, $\ensuremath{\pi}$, $S$, particle-core-coupling model, $Q$ for $^{98}\mathrm{Mo}$ (${2}^{+}$) and $^{97}\mathrm{Mo}$ (g.s.), $B(E2)$, $B(M1)$ for $^{97}\mathrm{Mo}$, $^{97}\mathrm{Nb}$.