Coupled-channels analysis of 800 MeV polarized proton inelastic scattering from 18O

Abstract Differential cross sections and analyzing powers have been measured for the 18 O ( p , p′) 18 O reaction at 800 MeV. A coupled-channels analysis of the 0 1 + , 2 1 + , and 4 2 + data yields good agreement with a rotational model description with a large β 4 deformation. The effects of channel coupling are large. The angular distributions of A y are reproduced well only with a full Thomas spin-orbit deformation approximately equal to the central deformation.