Dipole giant resonances in deformed heavy nuclei

Abstract

The spectral distribution of isovector dipole strength is computed using the time-dependent Skyrme-Hartree-Fock method with subsequent spectral analysis. The calculations are done without any imposed symmetry restriction, allowing any nuclear shape to be dealt with. The scheme is used to study the deformation dependence of giant resonances and its interplay with Landau fragmentation (owing to 1ph states). Results are shown for the chain of Nd isotopes, superdeformed $^{152}\mathrm{Dy}$, triaxial $^{188}\mathrm{Os}$, and $^{238}\mathrm{U}$.