Charge-Exchange Coupling inMo98+pReactions

The presence of isospin coupling in the incident channel is observed as anomalous behavior in ${}_{}{}^{98}{}_{}{}^{}\mathrm{Mo}$+$p$ excitation functions for proton, deuteron, and triton outgoing channels. Similarly shaped anomalies are simultaneously observed in several channels at threshold energies for the ($p, n$) reaction to the ground-state analog and to excited-state analogs of ${}_{}{}^{98}{}_{}{}^{}\mathrm{Mo}$. The latter imply coupling through a deformation of the isospin-dependent potential.