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One-particle properties of deformed N approximate to 28 odd-N nuclei with weakly bound or resonant neutrons

Hamamoto-Kuroda, Ikuko LU (2009) In Physical Review C (Nuclear Physics) 79(1).
Abstract
Possible deformation of odd-N nuclei with N approximate to 28 toward the neutron drip line is investigated using the Nilsson diagram based on deformed Woods-Saxon potentials. Both weakly-bound and resonant one-particle levels are properly obtained by directly solving the Schrodinger equation in mesh of space coordinate with the correct boundary condition. If we use the same diffuseness of the potential as that of beta-stable nuclei, the energy difference between the neutron 2p(3/2) and 1f(7/2) levels becomes very small or the N = 28 energy gap almost disappears, as the binding energies of those levels approach zero. This suggests that the ground states of those neutron drip line nuclei are likely to be deformed. In particular, the... (More)
Possible deformation of odd-N nuclei with N approximate to 28 toward the neutron drip line is investigated using the Nilsson diagram based on deformed Woods-Saxon potentials. Both weakly-bound and resonant one-particle levels are properly obtained by directly solving the Schrodinger equation in mesh of space coordinate with the correct boundary condition. If we use the same diffuseness of the potential as that of beta-stable nuclei, the energy difference between the neutron 2p(3/2) and 1f(7/2) levels becomes very small or the N = 28 energy gap almost disappears, as the binding energies of those levels approach zero. This suggests that the ground states of those neutron drip line nuclei are likely to be deformed. In particular, the spin-parity and the magnetic moment of the ground state of odd-N nuclei, S-43(16)27 and S-45(16)29, are examined. Moreover, it is suggested that in Mg-39(12)27 lying outside the drip line the lowest resonant state may have 5/2(-), if the N = 28 energy gap almost vanishes. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
79
issue
1
publisher
American Physical Society
external identifiers
  • wos:000262979900018
  • scopus:58849096834
ISSN
0556-2813
DOI
10.1103/PhysRevC.79.014307
language
English
LU publication?
yes
id
a7ee7975-c485-40a7-8958-ca5f69ed3e07 (old id 1311300)
date added to LUP
2009-03-17 11:22:38
date last changed
2017-03-26 04:01:23
@article{a7ee7975-c485-40a7-8958-ca5f69ed3e07,
  abstract     = {Possible deformation of odd-N nuclei with N approximate to 28 toward the neutron drip line is investigated using the Nilsson diagram based on deformed Woods-Saxon potentials. Both weakly-bound and resonant one-particle levels are properly obtained by directly solving the Schrodinger equation in mesh of space coordinate with the correct boundary condition. If we use the same diffuseness of the potential as that of beta-stable nuclei, the energy difference between the neutron 2p(3/2) and 1f(7/2) levels becomes very small or the N = 28 energy gap almost disappears, as the binding energies of those levels approach zero. This suggests that the ground states of those neutron drip line nuclei are likely to be deformed. In particular, the spin-parity and the magnetic moment of the ground state of odd-N nuclei, S-43(16)27 and S-45(16)29, are examined. Moreover, it is suggested that in Mg-39(12)27 lying outside the drip line the lowest resonant state may have 5/2(-), if the N = 28 energy gap almost vanishes.},
  articleno    = {014307},
  author       = {Hamamoto-Kuroda, Ikuko},
  issn         = {0556-2813},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {One-particle properties of deformed N approximate to 28 odd-N nuclei with weakly bound or resonant neutrons},
  url          = {http://dx.doi.org/10.1103/PhysRevC.79.014307},
  volume       = {79},
  year         = {2009},
}