Test of Hartree-Fock-RPA neutron and proton transition densities for 206,208Pb(p,p') at 650 MeV

A microscopic description of new data for inelastic scattering of 650 MeV protons on 206,208Pb with excitation of low-lying collective states is presented. The DWIA approximation is employed to calculate the scattering amplitude with the effective ρ-dependent t-matrix determined in our previous analysis of elastic proton scattering on 40Ca. In the case of 206Pb, the transition densities have been calculated in the HF+RPA theory with the Skyrme SkM' force. For 208Pb, the result of Decharge and Gogny (1980) was employed. The ground-state densities were taken from model-independent analyses of electron and proton scattering data. The theories describe the radial distributions of the scattering densities reasonably well, especially in 208Pb. However, their normalizations need readjusting. For neutron components they vary from 0.8 to 1.7 in 208Pb and they are close to unity within 20% in 206Pb. (author)