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Effects of surface vibrations on quadrupole response of nuclei

V. I. Abrosimov·A. Dellafiore·F. Matera
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Abstract

The effect of quadrupole-type surface vibrations on the quadrupole response function of heavy nuclei is studied by using a model based on the solution of the linearized Vlasov equation with moving-surface boundary conditions. By using a separable approximation for the residual interaction, an analytical expression is obtained for the moving-surface response function. Comparison of the fixed- and moving-surface strength functions shows that surface vibrations are essential in order to achieve a unified description of the two characteristic features of the quadrupole response: the giant resonance and the low-lying states. Calculations performed by setting the surface tension equal to zero shows that the low-lying strength is strongly affected by the surface tension.

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V. I. Abrosimov, A. Dellafiore, F. Matera. 2003-02-07. Effects of surface vibrations on quadrupole response of nuclei. https://doi.org/10.1016/s0375-9474(03)00611-0

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