Collective Multipole excitations of exotic nuclei in relativistic continuum random phase approximation

Abstract

Journal of Combinatorial Theory, Series B, 98(1):173-225, 2008n exotic nuclei are studied in the framework of a fully self-consistent relativistic continuum random phase approximation (RCRPA). In this method the contribution of the continuum spectrum to nuclear excitations is treated exactly by the single particle Green's function. Different from the cases in stable nuclei, there are strong low-energy excitations in neutron-rich nuclei and proton-rich nuclei. The neutron or proton excess pushes the centroid of the strength function to lower energies and increases the fragmentation of the strength distribution. The effect of treating the contribution of continuum exactly are also discussed.

8pages, 4 figures

References in corpus (5)

• Exotic modes of excitation in atomic nuclei far from stability
• The time-dependent relativistic mean-field theory and the random phase approximation
• Collective multipole excitations in a microscopic relativistic approach
• Self-consistent description of nuclear compressional modes
• Effect of Resonant Continuum on Pairing Correlations in the Relativistic Approach