Spin excitations in the 40Ca(p→,p′) reaction revisited

Double differential cross sections d(2)sigma/d omega d Omega and spin-flip probabilities S-nn have been measured for the Ca-40((p) over right arrow,(p) over right arrow') reaction at E-p=319 MeV. The angular range of the experiment was 10.5 degrees less than or equal to theta(lab)less than or equal to 23 degrees and the range of excitation energies was 6 less than or equal to omega less than or equal to 47 MeV. These data and earlier data at smaller angles are compared to calculations employing random phase approximation nuclear structure and a distorted wave impulse approximation reaction model.