  We study the theory of scattering in the energy space for the Hartree
equation in space dimension n>2. Using the method of Morawetz and Strauss, we
prove in particular asymptotic completeness for radial nonnegative
nonincreasing potentials satisfying suitable regularity properties at the
origin and suitable decay properties at infinity. The results cover in
particular the case of the potential |x|^(- gamma) for 2 < gamma < Min(4,n).
