The radiative proton capture reaction on ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$ was measured over the energy region $E_p$=20–90 MeV. Presented are experimental differential cross sections at ${\theta }_{\gamma }$=60° for captures populating the ground and various excited states of ${}_{}{}^{16}{}_{}{}^{}0$. Differential cross sections and analyzing-power angular distributions are presented at a proton energy of $E_p$=49.69 MeV. Calculations from a phenomenological direct-semidirect and a more detailed relativistic model describe cross sections well, but are less satisfactory in describing analyzing powers. Results of the energy-dependence measurements show that there are giant resonances built on all the excited states investigated.

• Received 30 June 1988

DOI:https://doi.org/10.1103/PhysRevC.39.340