Di-neutron correlations in medium-mass neutron-rich nuclei near the dripline
Graduate School of Science and Technology, Niigata University, 950-2181, Niigata, Japan
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Accepted: 18 February 2005
Published online: 29 June 2005
On the basis of the coordinate-space Hartree-Fock-Bogoliubov and the continuum quasiparticle random phase approximation (QRPA) theories, we demonstrate that a di-neutron correlation exists in the ground states of medium-mass neutron-rich nuclei near the dripline, and we suggest that the soft dipole excitation has the character of di-neutron motion against the remaining A - 2 subsystem.
PACS: 21.60.Jz Hartree-Fock and random-phase approximations –
© Società Italiana di Fisica and Springer-Verlag, 2005