Inelastic electron scattering and nuclear structure in 140Ce

Abstract

High-resolution inelastic electron scattering has been performed on 14°Ce. A search for high-spin, stretched-configuration transitions lead to the identification of a J1r = 12- state at 6.31 MeV. This transition has only 8% of the calculated single-particle strength. The absence of strong high-spin transverse excitations is interpreted as evidence for fragmentation of the single-particle strength. Transition charge densities for six low-lying states have also been extracted. These have been compared with available theoretical calculations; only the qualitative features of the experimentally reconstructed densities are reproduced.