Pairing correlations and resonant states in the relativistic mean field theory

Details Pairing correlations and resonant states in the relativistic mean field theory Pairing correlations and resonant states in the relativistic mean field theory

2003-06-11

arxiv.org/abs/nucl-th/0306035v1

Phys.Rev. C68 (2003) 054323

Physics

Nuclear Physics

Nuclear Theory

14 pages, 6 figures, revtex4

Scientific paper

10.1103/PhysRevC.68.054323

We present a simple scheme for taking into account the resonant continuum coupling in the Relativistic Mean Field- BCS (RMF-BCS) calculations. In this scheme, applied before in non-relativistic calculations, the effect of the resonant continuum on pairing correlations is introduced through the scattering wave functions located in the region of the resonant states. These states are found by solving the relativistic mean field equations with scattering-type boundary conditions for continuum spectrum. The calculations are done for the neutron-rich Zr isotopes. It is shown that the sudden increase of the neutron radii close to the neutron drip line, the so-called giant halo, is determined by a few resonant states close to the continuum threshold.

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