Coupled-Channels Analysis of Inelastic Proton Scattering fromC12at 0.8 GeV

Abstract

We present an analysis of new data for 0.8-GeV inelastic proton scattering to the $2^{+}$ (4.4 MeV) and $4^{+}$ (14.1 MeV) states of ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, using both distorted-wave Born-approximation and coupled-channels calculations with empirical, spherical, and deformed optical potentials. Both the deformation of the optical potential and the two-step transition via the $2^{+}$ state are shown to influence strongly the shape and magnitude of the calculated $4^{+}$ inelastic angular distribution.