Regular Article - Theoretical Physics
Hints of giant halo in Zr isotopes by resonant RMF+ACCC+BCS approach
School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
2 Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, China
Accepted: 5 March 2012
Published online: 29 March 2012
A simple scheme with the single-particle resonant continuum coupling and pairing correlations, is applied to describe the formation of the giant halo for neutron-rich even-even Zr isotopes by the resonant BCS model within the relativistic mean field framework. Resonance parameters and wave functions are extracted from the effective analytic continuation in the coupling-constant approach. It can be seen that the sudden increase of the neutron radii close to the neutron drip line is due to a few resonant states in the vicinity of the Fermi surface.
© SIF, Springer-Verlag Berlin Heidelberg, 2012