Effect of resonant continuum on pairing correlations in the relativistic approach

@article{Cao2003EffectOR,
  title={Effect of resonant continuum on pairing correlations in the relativistic approach},
  author={Ligang Cao and Zhong‐yu Ma},
  journal={The European Physical Journal A - Hadrons and Nuclei},
  year={2003},
  volume={22},
  pages={189-197}
}
  • L. Cao, Zhong‐yu Ma
  • Published 3 July 2003
  • Physics
  • The European Physical Journal A - Hadrons and Nuclei
Abstract.A proper treatment of the resonant continuum is to take account of not only the energy of the resonant state, but also its width. The effect of resonant states on pairing correlations is presented in the framework of the relativistic mean-field theory plus Bardeen-Cooper-Schrieffer (BCS) approximation with a constant pairing strength. The study is performed in an effective Lagrangian with the parameter set NL3 for neutron-rich even-even Ni isotopes. Results show that the contribution… 
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References

SHOWING 1-10 OF 30 REFERENCES
Pairing correlations and resonant states in the relativistic mean field theory
We present a simple scheme for taking into account the resonant continuum coupling in the relativistic mean field-BCS calculations. In this scheme, applied before in nonrelativistic calculations, the
Pairing interaction in exotic nuclei: Finite range or zero range?
The proper form of the pairing interaction near the drip line is discussed. The relativistic Hartree-Bogoliubov (RHB) theory in coordinate space is used to describe the chain of even-even nickel
Ground-state and pairing properties of Pr isotopes in relativistic mean-field theory
The ground-state and pairing properties of Pr (Z=59) isotopes are investigated in the relativistic mean-field (RMF) theory. The pairing correlations are studied in the Bardeen-Cooper-Schrieffer (BCS)
Pairing and continuum effects in nuclei close to the drip line
The Hartree-Fock-Bogoliubov (HFB) equations in coordinate representation are solved exactly, i.e., with correct asymptotic boundary conditions for the continuous spectrum. The calculations are
Exploration of resonant continuum and giant resonance in the relativistic approach
Single-particle resonant states in the continuum are determined by solving scattering states of the Dirac equation with proper asymptotic conditions in the relativistic mean field theory (RMF). The
Shell effects in nuclei with vector self-coupling of the ω meson in the relativistic Hartree-Bogoliubov theory
Shell effects in nuclei about the stability line are investigated within the framework of the Relativistic Hartree-Bogoliubov (RHB) theory with self-consistent finiterange pairing. Using 2-neutron
Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects.
Ground-state properties of exotic even-even nuclei with extreme neutron-to-proton ratios are described in the framework of self-consistent mean-field theory with pairing formulated in coordinate
Collective multipole excitations in a microscopic relativistic approach
Abstract A relativistic mean-field description of collective excitations of atomic nuclei is studied in the framework of a fully self-consistent relativistic random phase approximation (RRPA). In
Properties of highly excited nuclei
Abstract A prescription is proposed for calculating the contribution of unbound states in nuclear Hartree-Fock calculations at finite temperature. The method is based on the remark that a static
Pairing Properties In Relativistic Mean Field Models Obtained From Effective Field Theory
We apply recently developed effective field theory nuclear models in mean field approximation ~parameter sets G1 and G2 ! to describe ground-state properties of nuclei from the valley of b stability
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