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In-gas-cell laser resonance ionization spectroscopy of Ir 196,197,198

Mukai, M. ; Hirayama, Y. ; Watanabe, Y. X. ; Schiffmann, S. LU ; Ekman, J. LU ; Godefroid, M. ; Schury, P. ; Kakiguchi, Y. ; Oyaizu, M. and Wada, M. , et al. (2020) In Physical Review C 102(5).
Abstract

Hyperfine structure (HFS) measurements of neutron-rich iridium isotopes Ir196,197,198 (Z=77,N=119-121) were performed via in-gas-cell laser resonance ionization spectroscopy at the KEK Isotope Separation System. Magnetic dipole moments μ and isotope shifts were determined from the HFS spectra. The variation of mean-square charge radii and quadrupole deformation parameters of these isotopes were evaluated from the isotope shifts. The μ value of Ir197 agreed with a theoretical value based on the strong coupling model, and the Ir nucleus was interpreted as prolately deformed by the theoretical calculations. The μ values of Ir196,198 were also compared with semiempirical values calculated based on the strong coupling model. From the... (More)

Hyperfine structure (HFS) measurements of neutron-rich iridium isotopes Ir196,197,198 (Z=77,N=119-121) were performed via in-gas-cell laser resonance ionization spectroscopy at the KEK Isotope Separation System. Magnetic dipole moments μ and isotope shifts were determined from the HFS spectra. The variation of mean-square charge radii and quadrupole deformation parameters of these isotopes were evaluated from the isotope shifts. The μ value of Ir197 agreed with a theoretical value based on the strong coupling model, and the Ir nucleus was interpreted as prolately deformed by the theoretical calculations. The μ values of Ir196,198 were also compared with semiempirical values calculated based on the strong coupling model. From the comparison, we can suggest the possible spin values of Iπ=1,2- for Ir196 and Iπ=1- for Ir198.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
102
issue
5
article number
054307
publisher
American Physical Society
external identifiers
  • scopus:85096127656
ISSN
2469-9985
DOI
10.1103/PhysRevC.102.054307
language
English
LU publication?
yes
id
57b75fd4-81e6-4ee7-a328-4b704784fd92
date added to LUP
2020-11-24 15:52:57
date last changed
2022-04-19 02:08:57
@article{57b75fd4-81e6-4ee7-a328-4b704784fd92,
  abstract     = {{<p>Hyperfine structure (HFS) measurements of neutron-rich iridium isotopes Ir196,197,198 (Z=77,N=119-121) were performed via in-gas-cell laser resonance ionization spectroscopy at the KEK Isotope Separation System. Magnetic dipole moments μ and isotope shifts were determined from the HFS spectra. The variation of mean-square charge radii and quadrupole deformation parameters of these isotopes were evaluated from the isotope shifts. The μ value of Ir197 agreed with a theoretical value based on the strong coupling model, and the Ir nucleus was interpreted as prolately deformed by the theoretical calculations. The μ values of Ir196,198 were also compared with semiempirical values calculated based on the strong coupling model. From the comparison, we can suggest the possible spin values of Iπ=1,2- for Ir196 and Iπ=1- for Ir198. </p>}},
  author       = {{Mukai, M. and Hirayama, Y. and Watanabe, Y. X. and Schiffmann, S. and Ekman, J. and Godefroid, M. and Schury, P. and Kakiguchi, Y. and Oyaizu, M. and Wada, M. and Jeong, S. C. and Moon, J. Y. and Park, J. H. and Ishiyama, H. and Kimura, S. and Ueno, H. and Ahmed, M. and Ozawa, A. and Watanabe, H. and Kanaya, S. and Miyatake, H.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{In-gas-cell laser resonance ionization spectroscopy of Ir 196,197,198}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.102.054307}},
  doi          = {{10.1103/PhysRevC.102.054307}},
  volume       = {{102}},
  year         = {{2020}},
}