Surface Flows of Soft Monopole Modes of 40Mg
Pei, J. C., Wang, K., & Kortelainen, M. (2018). Surface Flows of Soft Monopole Modes of 40Mg. In A. Gargano, L. Coraggio, & N. Itaco (Eds.), 12th International Spring Seminar on Nuclear Physics: Current Problems and Prospects for Nuclear Structure, Proceedings (pp. 012051). Journal of Physics: Conference Series, 966. Institute of Physics Publishing. doi:10.1088/1742-6596/966/1/012051
Published inJournal of Physics: Conference Series;966
© the Authors, 2018. This is an open access article distributed under the terms of the Creative Commons License.
In order to explore the nature of collective modes in weakly bound nuclei, we have investigated surface flow patterns of isoscalar monopole modes in a shape-coexisting nucleus 40Mg. The calculations were done in a fully self-consistent continuum finite-amplitude-method quasiparticle-random-phase-approximation (FAM-QRPA) in a large deformed spatial mesh. Our results demonstrated that the transition current densities at surfaces are nontrivial and dependent on deformations. The toroidal mode is favorable in the oblate shape, demonstrating the geometric deformation effects on nuclear surface flows. The surface flow patterns become more complicated as excitation energies increase.