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Low-, medium-, and high-spin states in the N=Z+1 nucleus 63Ga

Rudolph, D. LU orcid ; Ragnarsson, I. LU ; Clark, R. M. ; Andreoiu, C. LU ; Carpenter, M. P. ; Ekman, J. LU ; Fahlander, C. LU ; Kondev, F. G. ; Lauritsen, T. and Sarantites, D. G. , et al. (2021) In Physical Review C 103(3).
Abstract
The fusion-evaporation reaction 28Si+40Ca at 122 MeV beam energy was used to populate excited states in the N=Z+1 nucleus 63Ga. With the combination of the Gammasphere spectrometer and the Microball CsI(Tl) charged-particle detector array, the level scheme of 63Ga was extended by more than a factor of two in terms of number of γ-ray transitions and excited states, excitation energy (Ex>30 MeV), and angular momentum (I>30 ℏ). Nine regular sequences of states were newly established in the high-spin part of the level scheme. The majority of these rotational band structures could be connected to the previously known part of the level scheme by high-energy... (More)
The fusion-evaporation reaction 28Si+40Ca at 122 MeV beam energy was used to populate excited states in the N=Z+1 nucleus 63Ga. With the combination of the Gammasphere spectrometer and the Microball CsI(Tl) charged-particle detector array, the level scheme of 63Ga was extended by more than a factor of two in terms of number of γ-ray transitions and excited states, excitation energy (Ex>30 MeV), and angular momentum (I>30 ℏ). Nine regular sequences of states were newly established in the high-spin part of the level scheme. The majority of these rotational band structures could be connected to the previously known part of the level scheme by high-energy γ-ray transitions in the energy range Eγ=4–6 MeV. Low-spin states were assessed by shell-model calculations. The high-spin rotational bands were interpreted and classified by means of cranked Nilsson-Strutinsky calculations. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nuclear structure and decays, N=Z nuclei, gamma-ray spectroscopy
in
Physical Review C
volume
103
issue
3
article number
034306
pages
20 pages
publisher
American Physical Society
external identifiers
  • scopus:85102946447
ISSN
2469-9985
DOI
10.1103/PhysRevC.103.034306
project
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
language
English
LU publication?
yes
id
00353faf-ae2f-4b7a-999f-054e9e8cdc78
date added to LUP
2021-03-05 18:42:20
date last changed
2024-02-01 17:34:10
@article{00353faf-ae2f-4b7a-999f-054e9e8cdc78,
  abstract     = {{The fusion-evaporation reaction <sup>28</sup>Si+<sup>40</sup>Ca at 122 MeV beam energy was used to populate excited states in the <i>N</i>=<i>Z</i>+1 nucleus <sup>63</sup>Ga. With the combination of the Gammasphere spectrometer and the Microball CsI(Tl) charged-particle detector array, the level scheme of <sup>63</sup>Ga was extended by more than a factor of two in terms of number of γ-ray transitions and excited states, excitation energy (<i>E<sub>x</sub></i>&gt;30 MeV), and angular momentum (<i>I</i>&gt;30 ℏ). Nine regular sequences of states were newly established in the high-spin part of the level scheme. The majority of these rotational band structures could be connected to the previously known part of the level scheme by high-energy <i>γ</i>-ray transitions in the energy range <i>E<sub>γ</sub></i>=4–6 MeV. Low-spin states were assessed by shell-model calculations. The high-spin rotational bands were interpreted and classified by means of cranked Nilsson-Strutinsky calculations.}},
  author       = {{Rudolph, D. and Ragnarsson, I. and Clark, R. M. and Andreoiu, C. and Carpenter, M. P. and Ekman, J. and Fahlander, C. and Kondev, F. G. and Lauritsen, T. and Sarantites, D. G. and Seweryniak, D. and Svensson, C. E.}},
  issn         = {{2469-9985}},
  keywords     = {{nuclear structure and decays; N=Z nuclei; gamma-ray spectroscopy}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Low-, medium-, and high-spin states in the <i>N</i>=<i>Z</i>+1 nucleus <sup>63</sup>Ga}},
  url          = {{https://lup.lub.lu.se/search/files/94837204/Ga63_PhysRevC.103.034306.pdf}},
  doi          = {{10.1103/PhysRevC.103.034306}},
  volume       = {{103}},
  year         = {{2021}},
}