The elastic and inelastic scattering data of 1 GeV protons on 12C, 39K, 40, 48Ca, 58Ni and 208Pb are analysed within the framework of Glauber theory. The collective excitations to one-phonon levels are treated using the Tassie model under the adiabatic approximation. Effects of both the coupling between the elastic and the inelastic channels and the two-body correlation in the intrinsic state are considered. The ground state and transition densities for the protons are taken from electron scattering experiments and appropriate assumptions for the neutron densities are made. In most of the cases, better agreement with the experimental data than reported in earlier analyses is obtained. The effects of the coupling and the pair correlation seem to be important only for 12C. The elastic data strongly indicate that the density distributions for protons and neutrons in 48Ca and 208Pb are different. In 48Ca, the surface envelope of the neutron distribution is found to be the same as for the proton distribution but is placed at a larger radius. On the other hand, the neutron distribution in 208Pb seems to be relatively much more diffuse.