The role of the surface energy in nuclear octupole excitations

Le résumé fourni par la source

Octupole excitations of atomic nuclei can be viewed as fluctuations around an equilibrium shape. Shape fluctuations cause a change in the nuclear surface, and it is reasonable to suggest that such fluctuations may probe the nuclear surface energy. We use a series of Skyrme interactions, which were fitted to provide a systematic range of surface energies, to explore the surface energy dependence of octupole excitations in [Formula: see text]Pb. We find a strong positive linear correlation between the surface energy of a Skyrme interaction and its prediction of the first [Formula: see text] octupole excitation energy.

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