Radiative proton capture to excited states in O16

The radiative proton capture reaction on N15 was measured over the energy region Ep=2090 MeV. Presented are experimental differential cross sections at =60°for captures populating the ground and various excited states of 016. Differential cross sections and analyzing-power angular distributions are presented at a proton energy of Ep=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.