engleski

Collective multipole excitations in a microscopic relativistic approach

Relativistic mean-field description of collective excitations of atomic nuclei is studied in the framework of a fully self-consistent relativistic random phase approximation. Results of RRPA calculations of multipole giant resonances and of low-lying collective states in spherical nuclei are analysed.By using effective Lagrangians which, in the mean field approximation, provide an accurate description of ground-state properties, an excellent agreement with experimental data is also found for the excitation energies of low-lying collective states and of giant resonances.

collective multipole excitations; microscopic relativistic approach

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