The non-normal-parity states for the five-nucleon system are obtained in the shell-model with particle-hole interactions. The residual force used is the separable smooth potential due to Tabakin. Coupling of the shell-model wave functions to deuteron and single-particle channels is calculated semiquantitatively, and the results are used in an $R$-matrix calculation of the cross section for photocapture of deuterons by tritons. A broad peak in the cross section at about 21-MeV excited energy due to capture through a ${\frac{5}{2}}^{+}$ state is predicted.

• Received 19 November 1970

DOI:https://doi.org/10.1103/PhysRevC.4.1