Effects of surface vibrations on quadrupole response of nuclei
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.
Keywords
Cite
@article{arxiv.nucl-th/0210072,
title = {Effects of surface vibrations on quadrupole response of nuclei},
author = {V. I. Abrosimov and A. Dellafiore and F. Matera},
journal= {arXiv preprint arXiv:nucl-th/0210072},
year = {2009}
}
Comments
Appendix added, version to be published in Nucl. Phys. A