In-gas-cell laser resonance ionization spectroscopy of Ir 196,197,198
(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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- author
- organization
- publishing date
- 2020
- 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}}, }