Elastically Scattered Protons from Carbon

The excited states of ${\mathrm{N}}^{13}$ were investigated by use of the ${\mathrm{C}}^{12}\mathrm{}(p,p)\mathrm{}$ reaction. Only the two resonances, at 465-kev and 1.7-Mev proton energies, previously known from the ${\mathrm{C}}^{12}(p,\gamma ){\mathrm{N}}^{13}$ reaction were found. The energy region covered was from 0.3- to 4.0-Mev proton bombarding energy. The elastically scattered protons were observed by the use of a 90° magnetic analyzer at an angle of 164° to the incident beam. The intensities at the resonances show that the 465-kev level has $J=\frac{1}{2}$ and that the 1.7-Mev level has probably $J=\frac{3}{2} or \frac{5}{2}$.