Pairing Interaction and Self-Consistent Densities
in Neutron-Rich Nuclei

J. Dobaczewski,^1,2,3W. Nazarewicz,^1,4,5 and P.-G. Reinhard<sup>3,6


1</sup>Institute of Theoretical Physics, Warsaw University,
ul. Hoza 69, PL-00681, Warsaw, Poland
²Joint Institute for Heavy Ion Research,
Oak Ridge National Laboratory,
P.O. Box 2008, Oak Ridge, Tennessee 37831
³Institute for Nuclear Theory, University of Washington,
Seattle, Washington 98195
⁴Department of Physics and Astronomy,
University of Tennessee, Knoxville, Tennessee 37996
⁵Physics Division, Oak Ridge National Laboratory,
P.O. Box 2008, Oak Ridge, Tennessee 37831
⁶Institut für Theoretische Physik, Universität Erlangen,
Staudtstr. 7, D-91058 Erlangen, Germany

Abstract:

Particle and pairing densities in spherical even-even neutron-rich nuclei are studied within the Skyrme-Hartree-Fock-Bogoliubov approach with the density-dependent pairing interaction. The influence of the density dependence of the pairing interaction on asymptotic properties of nucleonic distributions are analyzed. It is demonstrated that the size of the neutron halo dramatically depends on the behavior of the pairing interaction at low density.