New concept for pairing anti-halo effect as a localized wave packet of quasi-particle
arXiv:1608.08312 · doi:10.1103/PhysRevC.95.024304
Abstract
The pairing anti-halo effect is a phenomenon that a pairing correlation suppresses a divergence of nuclear radius, which happens for single-particle states with orbital angular momenta of = 0 and 1 in the limit of vanishing binding energy. While this effect has mainly been discussed in terms of Hartree-Fock-Bogoliubov (HFB) theory, we here use a three-body model and provide its new intuitive concept as a localized wave packet for a quasi-particle, that is, a coherent superposition of a weakly bound and continuum wave functions due to a pairing interaction. We show that the one-particle density in the three-body model can be directly expressed with such quasi-particle wave functions, which have a close analog to wave functions in the HFB approximation.
arXiv comment6 pages, 3 figures
References in corpus (13)
- Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects
- Pairing correlations in nuclei on the neutron-drip line
- Superdeformed rotational bands in the Mercury region; A Cranked Skyrme-Hartree-Fock-Bogoliubov study
- 3D Solution of Hartree-Fock-Bogoliubov Equations for Drip-Line Nuclei
- Pairing anti-halo effect
- Unveiling pairing anti-halo effect in odd-even staggering in reaction cross sections of weakly bound nuclei
- Giant neutron halos in the non-relativistic mean field approach
- Pairing correlations and odd-even staggering in reaction cross sections of weakly bound nuclei
- Odd-even staggering of reaction cross sections for 22,23,24O isotopes
- Anti-halo effects on reaction cross sections for C isotopes
- Reaction mechanism in odd-even staggering of reaction cross sections
- Asymptotics of neutron Cooper pair in weakly bound nuclei
- Perturbative HFB model for many-body pairing correlations