Single-particle momentum distributions in sodium clusters: dependence on deformation

The main properties of deformed sodium clusters in momentum space have been analyzed in the framework of the selfconsistent Kohn-Sham formalism using a spheroidal jellium configuration. Deformation effects in r space have bee n compared with those in k space for both global and single-particle distri butions. In momentum space, deformation has more effect in single-particle distributions and its behavior is a signature of the admixture of various l -waves in each deformed orbital.