Shape and shell structure of lighter (N?90) neutron-rich nuclei based on a phenomenological Woods-Saxon potential
(2019) In Physical Review C 99(2).- Abstract
By using a phenomenologically successful Woods-Saxon potential, I study the shape and shell structure of (A) neutron drip line nuclei with 10≤N≤60, (B) neutron-rich nuclei related to the r process with 40≤N≤90, and (C) one-particle spectra in the potential provided by the nucleus Fe70 as a representative of so-called N=40 "island of inversion" (IoI) nuclei. First, the shell structure that is unique in very weakly bound neutrons is systematically studied, and the approximate neutron number of odd-N nuclei at which spherical (or deformed) halos can be found is pinned down. Second, the difference of the shell structure in r-process nuclei from that in stable nuclei is examined. Third, the similarity and the difference between the shell... (More)
By using a phenomenologically successful Woods-Saxon potential, I study the shape and shell structure of (A) neutron drip line nuclei with 10≤N≤60, (B) neutron-rich nuclei related to the r process with 40≤N≤90, and (C) one-particle spectra in the potential provided by the nucleus Fe70 as a representative of so-called N=40 "island of inversion" (IoI) nuclei. First, the shell structure that is unique in very weakly bound neutrons is systematically studied, and the approximate neutron number of odd-N nuclei at which spherical (or deformed) halos can be found is pinned down. Second, the difference of the shell structure in r-process nuclei from that in stable nuclei is examined. Third, the similarity and the difference between the shell structure of N=20 IoI nuclei and that of N=40 IoI nuclei are analyzed. As a result, it is concluded that in Fe and Cr isotopes the deformation called "N=40 IoI" continuing up to N=50 is unlikely.
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- author
- Hamamoto, Ikuko LU
- organization
- publishing date
- 2019-02-25
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 99
- issue
- 2
- article number
- 024319
- publisher
- American Physical Society
- external identifiers
-
- scopus:85062468141
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.99.024319
- language
- English
- LU publication?
- yes
- id
- 76e3302b-d788-42e2-bdce-2acee639c27b
- date added to LUP
- 2019-03-13 11:55:51
- date last changed
- 2022-04-25 21:58:16
@article{76e3302b-d788-42e2-bdce-2acee639c27b,
abstract = {{<p>By using a phenomenologically successful Woods-Saxon potential, I study the shape and shell structure of (A) neutron drip line nuclei with 10≤N≤60, (B) neutron-rich nuclei related to the r process with 40≤N≤90, and (C) one-particle spectra in the potential provided by the nucleus Fe70 as a representative of so-called N=40 "island of inversion" (IoI) nuclei. First, the shell structure that is unique in very weakly bound neutrons is systematically studied, and the approximate neutron number of odd-N nuclei at which spherical (or deformed) halos can be found is pinned down. Second, the difference of the shell structure in r-process nuclei from that in stable nuclei is examined. Third, the similarity and the difference between the shell structure of N=20 IoI nuclei and that of N=40 IoI nuclei are analyzed. As a result, it is concluded that in Fe and Cr isotopes the deformation called "N=40 IoI" continuing up to N=50 is unlikely.</p>}},
author = {{Hamamoto, Ikuko}},
issn = {{2469-9985}},
language = {{eng}},
month = {{02}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review C}},
title = {{Shape and shell structure of lighter (N?90) neutron-rich nuclei based on a phenomenological Woods-Saxon potential}},
url = {{http://dx.doi.org/10.1103/PhysRevC.99.024319}},
doi = {{10.1103/PhysRevC.99.024319}},
volume = {{99}},
year = {{2019}},
}