Abstract
First the technique of partial ħ-resummation is used to obtain semiclassical current distributions of slowly-rotating normal fluid nuclei. We find that the average intrinsic current flows mainly in the nuclear surface. The analogy with the Bohr-van Leeuven theorem of diamagnetism is pointed out. Strutinsky- and temperature-averaged calculations are in good agreement with the semiclassical results. Secondly we study rotating superfluid nuclei and find in semiclassical approximation analytic closed expressions for the currents using a deformed harmonic-oscillator potential. The currents pass with increasing gap continuously from rigid-rotation flow to irrotational flow patterns. Analogous results hold true for the moment of inertia. For a fixed value of the gap our formulas for the moment of inertia interpolate smoothly between irrotational flow and rigid-body values as a function of deformation.
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