${\mathrm{N}}^{14}(\alpha , \alpha ){\mathrm{N}}^{14}$ and ${\mathrm{N}}^{14}(\alpha , p){\mathrm{O}}^{17}$ Differential Cross Sections

The ${\mathrm{N}}^{14}(\alpha , \alpha ){\mathrm{N}}^{14}$ and ${\mathrm{N}}^{14}(\alpha , p){\mathrm{O}}^{17}$ differential cross sections have been measured for $\alpha$-particle bombarding energies from 2.0 to 3.8 Mev. A differentially pumped gas scattering chamber was used. The ${\mathrm{N}}^{14}(\alpha , \alpha ){\mathrm{N}}^{14}$ differential cross sections were measured at center-of-mass angles of 170.8°, 140.6°, 125.1°, and 91.0°. Resonances were observed at 2.351, 2.370, 2.767, 2.868, 2.870, 3.080, 3.576 Mev and ∼3.67 and ∼3.71 Mev.