The 14N(p,gamma)15O reaction studied at 0.6 - 2 MeV

The 14N(p,γ)15O is the bottleneck reaction of the hydrogen burning CNO cycle. Although it contributes only 0.8% to energy production in our Sun, the CNO cycle is responsible for neutrino fluxes from the decay of 13N and 15O, which can be detected by underground laboratories as Borexino and SNO+. The interpretation of these data requires more precise nuclear reaction cross section data.
Recent experiments on 14N(p,γ)15O focused mainly in the region 70 < E < 500 keV. Only one set of data extends up to 2 MeV. However, also high energy data are important for the S-factor extrapolation towards lower energies.
The present experiment re-studied the reaction cross section in the energy region from E = 0.6 to 2 MeV, including the resonance at E = 0.987 MeV. New resonance strength and off-resonance S-factors will be presented.