Nuclear shell structures in terms of classical periodic orbits

作者：Arita Ken ichiro^*

来源：Physica Scripta, 2016, 91(6): 063002.

DOI：10.1088/0031-8949/91/6/063002

• periodic orbit theory
• prolate shape dominance
• nuclear exotic deformations

Semiclassical periodic-orbit theory (POT) theory is applied to the physics of nuclear structures, with the use of a realistic nuclear mean-field model given by the radial power-law potential. Evolution of deformed shell structures, which are responsible for various nuclear deformations, are clearly understood from the contribution of short classical periodic orbits (POs). Bifurcations of short POs, which imply underlying local dynamical symmetry, play significant role there. The effect of the spin degree of freedom is also investigated in relevance to the pseudospin symmetry in spherical nuclei and the prolate-oblate asymmetry in shell structures of nuclei with quadrupole-type deformations.

• 出版日期2016-6