Polarization Measurements Near Isobaric Analogs of States inN=83Isotones

Measurements of the polarization of protons scattered from barium and cerium have been made to determine the total angular momenta, $J$, of isobaric analogs of states in ${}_{}{}^{139}{}_{}{}^{}\mathrm{Ba}$ and in ${}_{}{}^{141}{}_{}{}^{}\mathrm{Ce}$. The second $p$-wave state in each case has been found to have angular momentum ½ in contrast to previous assignments of $J=\frac{3}{2}$ to this level.