Negative-Parity States inCa42

A core-particle coupling-model calculation of the negative-parity levels in ${}_{}{}^{42}{}_{}{}^{}\mathrm{Ca}$ using random-phase-approximation states succeeds in explaining the strong fragmentation of the octupole strength in this nucleus relative to ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$. The calculation also succeeds in producing the high density of odd-parity levels and their spectral positions but fails badly to account for the spectroscopic factors in the reaction ${}_{}{}^{42}{}_{}{}^{}\mathrm{K}({}_{}{}^3{}_{}{}^{}\mathrm{He},d){}_{}{}^{42}{}_{}{}^{}\mathrm{Ca}$.