Pairing correlations. I. Description of odd nuclei in mean-field theories
نویسندگان
چکیده
منابع مشابه
Mean-field Based Approaches to Pairing Correlations in Atomic Nuclei
The evolution of the pairing correlations from closed shell to midshell nuclei is analyzed in the Sn isotopes with the Finite Range Density Dependent Gogny force. As theoretical approaches we use the Hartree-Fock-Bogoliubov, the Lipkin-Nogami, their particle number projected counterparts and the full variation after particle number projection method. We find that whereas all approaches succeed ...
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Self-consistent mean-field models are one of the standard approaches in nuclear structure theory, see Ref.1 for a recent review. For heavy nuclei, they are the only microscopic method that can be systematically applied on a large scale. Over the last few years, we were involved in the development of a method, that adds long-range correlations to self-consistent mean-field by projection after va...
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Ground-state properties of exotic even-even nuclei with extreme neutron-to-proton ratios are described in the framework of the self-consistent mean-field theory with pairing formulated in coordinate space. This theory properly accounts for the influence of the particle continuum, which is particularly important for weakly bound systems. The pairing properties of nuclei far from stability are st...
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Paring correlations in weakly bound halo nuclei He and Li are studied by using a threebody model with a density-dependent contact interaction. We investigate the spatial structure of two-neutron wave function in a Borromean nucleus Li. The behavior of the neutron pair at different densities is simulated by calculating the two-neutron wave function at several distances between the core nucleus L...
متن کاملThe Role of Ground State Correlations in the Single - Particle Strength of Odd Nuclei with Pairing
A method based on the consistent use of the Green function formalism has been developed to calculate the distribution of the single-particle strength in odd nuclei with pairing. The method takes into account the quasiparticle-phonon interaction, ground state correlations and a " refinement " of phenomenological single-particle energies and pairing gap values from the quasiparticle-phonon intera...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2001
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.65.014310