Persistent contribution of unbound quasiparticles to the pair correlation in continuum Skyrme-Hartree-Fock-Bogoliubov approach

Abstract

The neutron pair correlation in nuclei near the neutron drip-line is investigated using the selfconsistent continuum Skyrme-Hartree-Fock-Bogoliubov theory formulated with the coordinate-space Green's function technique. Numerical analysis is performed for even-even N = 86 isotones in the Mo-Sn region, where the 3p3/2 and 3p1/2 orbits lying near the Fermi energy are either weakly bound or unbound. The quasiparticle states originating from the l = 1 orbits form resonances with large widths, which are due to the low barrier height and the strong continuum coupling caused by the pair potential. Analyzing in detail the pairing properties and roles of the quasiparticle resonances, we found that the l = 1 broad quasiparticle resonances persist to feel the pair potential and contribute to the pair correlation even when their widths are comparable with the resonance energy.

References in corpus (20)

• Relativistic Continuum Hartree Bogoliubov Theory for Ground State Properties of Exotic Nuclei
• Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects
• A Giant Halo at the Neutron Drip Line
• Neutron halo in deformed nuclei
• Spherical Relativistic Hartree theory in a Woods-Saxon basis
• Spatial structure of neutron Cooper pair in low density uniform matter
• Continuum Linear Response in Coordinate Space Hartree-Fock-Bogoliubov Formalism for Collective Excitations in Drip-line Nuclei
• Pairing and continuum effects in nuclei close to the drip line
• Di-neutron correlation and soft dipole excitation in medium mass neutron-rich nuclei near drip-line
• Relativistic Hartree-Fock-Bogoliubov theory with Density Dependent Meson-Nucleon Couplings
• Pairing Interaction and Self-Consistent Densities in Neutron-Rich Nuclei
• Pairing anti-halo effect
• Study of Proton Magic Even-Even Isotopes and Giant Halos of Ca Isotopes with Relativistic Continuum Hartree-Bogoliubov Theory
• Continuum Hartree-Fock-Bogoliubov theory for weakly bound deformed nuclei using coordinate-space Green's function method
• Halo phenomenon in finite many-fermion systems. Atom-positron complexes and large-scale study of atomic nuclei
• Surface-enhanced pair transfer in quadrupole states of neutron-rich Sn isotopes
• Giant neutron halos in the non-relativistic mean field approach
• Pairing-induced localization of the particle continuum in weakly bound nuclei
• Collective Excitations and Pairing Effects in Drip-Line Nuclei -- Continuum RPA in Coordinate-Space HFB --
• Pairing collectivity in medium-mass neutron-rich nuclei near drip-line

Cited by in corpus (25)

• Hidden pseudospin and spin symmetries and their origins in atomic nuclei
• Halos in medium-heavy and heavy nuclei with covariant density functional theory in continuum
• Deformed relativistic Hartree Bogoliubov theory in continuum
• Pseudospin symmetry in single particle resonances in spherical square wells
• Living on the edge of stability, the limits of the nuclear landscape
• Pair correlation of giant halo nuclei in continuum Skyrme-Hartree-Fock-Bogoliubov theory
• Green's function method for single-particle resonant states in relativistic mean field theory
• Quasi-particle continuum and resonances in the Hartree-Fock-Bogoliubov theory
• Neutron drip line in the deformed relativistic Hartree-Bogoliubov theory in continuum: Oxygen to Calcium
• Green's function method for the single-particle resonances in a deformed Dirac equation
• Green's function relativistic mean field theory for $\Lambda$ hypernuclei
• Suppression, persistence and reentrance of superfluidity in overflowing nuclear systems
• Green's function method for the spin and pseudospin symmetries in the single-particle resonant states
• Influence of pairing correlations on the radius of neutron-rich nuclei
• Search for excited states in ${}^{25}$O
• Pairing correlations and odd-even staggering in reaction cross sections of weakly bound nuclei
• Searching for single-particle resonances with the Green's function method
• Continuum Skyrme-Hartree-Fock-Bogoliubov theory with Green's function method for odd-$A$ nuclei
• Jost function based on the Hartree-Fock-Bogoliubov formalism
• Study of single-particle resonant states with Green's function method
• Finite temperature pairing re-entrance in drip-line ${}^{48}$Ni nucleus
• Probing spin and pseudospin symmetries in deformed nuclei by the Green's function method
• Continuum discretized BCS approach for weakly bound nuclei
• Precision of finite-difference representation in 3D coordinate-space Hartree-Fock-Bogoliubov calculations
• Models for Pairing Phenomena