Hole-Strength Variations in Neutron Pickup Reactions to Isobaric-Analog States in Mo Isotopes

We report a study of isobaric-analog states excited in the ($p, d$) and ($d, t$) reactions on ${}_{}{}^{92,94,96}{}_{}{}^{}\mathrm{Mo}$ and in the reaction ${}_{}{}^{98}{}_{}{}^{}\mathrm{Mo}(p, d){}_{}{}^{97}{}_{}{}^{}\mathrm{Mo}$. We observe a large decrease in $l=1\mathrm{}$ hole strength with increasing mass number and fluctuations in the ratios $\frac{C^2{S}_n(p, d)}{C^2{S}_n(d, t)}$. The first effect is discussed in terms of mixing with the dense spectrum of $T_{<}$ levels in the region of the isobaric-analog states.