Complete Spin Observables for Quasielastic Proton Scattering fromFe54at 290 MeV

Abstract
Cross sections and a complete set of seven independent spin observables have been measured for inclusive quasielastic scattering of 290-MeV protons from Fe54 at a quasifree momentum transfer of 1.36 fm1 and energy transfers varying from 0-90 MeV. Comparison of the results with relativistic and nonrelativistic impulse-approximation models shows that Fermi-motion averaging, a realistic nuclear response function, and medium modifications of the NN interaction are essential ingredients of a successful theory.