Dirac coupled channel calculations for proton inelastic scattering from spherically symmetric nuclei for projectile energies of 362, 500, and 800 MeV

L. Kurth; B. C. Clark; E. D. Cooper; S. Hama; S. Shim; R. L. Mercer; L. Ray; G. W. Hoffmann

doi:10.1103/PhysRevC.49.2086

Dirac coupled channel calculations for proton inelastic scattering from spherically symmetric nuclei for projectile energies of 362, 500, and 800 MeV

L. Kurth, B. C. Clark, E. D. Cooper, S. Hama, S. Shim, R. L. Mercer, L. Ray, and G. W. Hoffmann

Phys. Rev. C 49, 2086 – Published 1 April 1994

Abstract

Coupled channel calculations for proton-nucleus inelastic scattering are performed using the Dirac formalism. The inelastic scattering of 362, 500, and 800 MeV protons from ${}^{40}{Ca}$ , ${}^{90}{Zr}$ , and ${}^{208}{Pb}$ are considered. Transition potentials for the low-lying collective states are obtained using a simple collective model. Phenomenological as well as parameter-free relativistic impulse approximation (RIA) optical potentials are used for the direct potentials. It is found that reasonable descriptions of both elastic and inelastic observables are obtained. It is shown that the coupling to low-lying states greatly improves the agreement with the large angle data.