We obtain expressions for proton-nucleus elastic scattering amplitudes in the Glauber approximation which include the effects of spin dependence and Coulomb interactions. These effects are shown to be important for determining the neutron and matter radii for all target nuclei. The results for neutron radii are compared with theoretical predictions.

[NUCLEAR REACTIONS ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{40,48}{}_{}{}^{}\mathrm{Ca}$, ${}_{}{}^{90}{}_{}{}^{}\mathrm{Zr}$, ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}\mathrm{}(p,p)\mathrm{}$, $E=1\mathrm{}$ GeV; calculated $\sigma \left(\theta \right)$, determined radii of neutron density distributions.]

• Received 28 March 1977

DOI:https://doi.org/10.1103/PhysRevC.16.308