The energy and angular distributions of positive photopions emitted following the (e,${\pi }^{+}$) reaction on ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ and ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ has been studied for the spin-dipole isovector states in the highly excited residual nuclei. These states are found at ∼7 MeV in ${}_{}{}^{12}{}_{}{}^{}\mathrm{B}$ and 13.6, 17.7, and 24.0 MeV in ${}_{}{}^6{}_{}{}^{}\mathrm{He}$, in close agreement with the theoretical estimates.

• Received 3 December 1985

DOI:https://doi.org/10.1103/PhysRevC.33.2179