Abstract
An isospin coupled-channels analysis of sub-Coulomb-proton-absorption cross sections has been performed for $^{92,94,96}\mathrm{Zr}$ and $^{94,96,98,100}\mathrm{Mo}$. Introduction of coupling to the channel consisting of a neutron plus the isobaric analog of the target is shown to shift and damp the single-particle resonances, in addition to giving rise to isobaric-analog resonances. In spite of these effects due to the coupling, large variations in the absorptive potentials were still required to fit measured ($p, n$) cross sections. $^{96}\mathrm{Zr}(p, n)$ and $^{100}\mathrm{Mo}(p, n)$ cross sections were measured and analyzed with a standard optical model for this work. Other $\mathrm{Zr}(p, n)$ and $\mathrm{Mo}(p, n)$ cross sections were taken from previous results.
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