Effective pair-gap of weakly-bound neutrons in deformed nuclei
(2005) In Physical Review C (Nuclear Physics) 71(3).- Abstract
- The dependence of effective pair gap on weakly bound neutron orbits is studied in deformed nuclei in comparison with that in spherical nuclei, solving the Hartree-Fock-Bogoliubov equation in a simplified model in coordinate space with the correct asymptotic boundary conditions. In spherical nuclei the effective pair gap of s1/2 neutrons decreases to zero in the limit that the corresponding Hartree-Fock one-particle energy approaches zero. In the same limit, the effective pair gap of =1/2+ neutrons in deformed nuclei becomes very small when the wave functions of =1/2+ orbits contain an appreciable amount of s1/2 components, even if a considerable amount of larger-components remains in the wave functions. Then, the one-particle excitation... (More)
- The dependence of effective pair gap on weakly bound neutron orbits is studied in deformed nuclei in comparison with that in spherical nuclei, solving the Hartree-Fock-Bogoliubov equation in a simplified model in coordinate space with the correct asymptotic boundary conditions. In spherical nuclei the effective pair gap of s1/2 neutrons decreases to zero in the limit that the corresponding Hartree-Fock one-particle energy approaches zero. In the same limit, the effective pair gap of =1/2+ neutrons in deformed nuclei becomes very small when the wave functions of =1/2+ orbits contain an appreciable amount of s1/2 components, even if a considerable amount of larger-components remains in the wave functions. Then, the one-particle excitation spectra of deformed even-even neutron-drip-line nuclei, in which an =1/2+ level is weakly bound, can start at much lower energy than twice the average pair gap in the presence of many-body pair correlation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/702203
- author
- Hamamoto-Kuroda, Ikuko LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C (Nuclear Physics)
- volume
- 71
- issue
- 3
- publisher
- American Physical Society
- external identifiers
-
- wos:000228643500056
- scopus:18244387955
- ISSN
- 0556-2813
- DOI
- 10.1103/PhysRevC.71.037302
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- 0fbe6813-a2aa-4774-a155-4f1d1dc211a8 (old id 702203)
- date added to LUP
- 2016-04-01 15:30:53
- date last changed
- 2022-01-28 05:43:36
@article{0fbe6813-a2aa-4774-a155-4f1d1dc211a8,
abstract = {{The dependence of effective pair gap on weakly bound neutron orbits is studied in deformed nuclei in comparison with that in spherical nuclei, solving the Hartree-Fock-Bogoliubov equation in a simplified model in coordinate space with the correct asymptotic boundary conditions. In spherical nuclei the effective pair gap of s1/2 neutrons decreases to zero in the limit that the corresponding Hartree-Fock one-particle energy approaches zero. In the same limit, the effective pair gap of =1/2+ neutrons in deformed nuclei becomes very small when the wave functions of =1/2+ orbits contain an appreciable amount of s1/2 components, even if a considerable amount of larger-components remains in the wave functions. Then, the one-particle excitation spectra of deformed even-even neutron-drip-line nuclei, in which an =1/2+ level is weakly bound, can start at much lower energy than twice the average pair gap in the presence of many-body pair correlation.}},
author = {{Hamamoto-Kuroda, Ikuko}},
issn = {{0556-2813}},
language = {{eng}},
number = {{3}},
publisher = {{American Physical Society}},
series = {{Physical Review C (Nuclear Physics)}},
title = {{Effective pair-gap of weakly-bound neutrons in deformed nuclei}},
url = {{http://dx.doi.org/10.1103/PhysRevC.71.037302}},
doi = {{10.1103/PhysRevC.71.037302}},
volume = {{71}},
year = {{2005}},
}