In-gas-cell laser spectroscopy of the magnetic dipole moment of the N≈126 isotope Pt 199

Y. Hirayama, M. Mukai, Y. X. Watanabe, M. Ahmed, S. C. Jeong, H. S. Jung, Y. Kakiguchi, S. Kanaya, S. Kimura, J. Y. Moon, T. Nakatsukasa, M. Oyaizu, J. H. Park, P. Schury, A. Taniguchi, M. Wada, K. Washiyama, H. Watanabe, H. Miyatake

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The magnetic dipole moment and mean-square charge radius of Pt199g (Iπ= 5/2-,t1/2=30.8 min) ground state and Pt199m (Eex=424 keV, Iπ= (13/2)+,t1/2=13.6 s) isomeric state are evaluated for the first time from investigations of the hyperfine splitting of the λ1=248.792 nm transition by in-gas-cell laser ionization spectroscopy. Ground and isomeric states of neutron-rich Pt199 nucleus were produced by a multinucleon transfer reaction at the KEK Isotope Separation System (KISS), designed for the study of nuclear spectroscopy in the vicinity of N=126. The measured magnetic dipole moments +0.75(8)μN and -0.57(5)μN are consistent with the systematics of those of nuclei with Iπ= 5/2- and Iπ= 13/2+, respectively.

Original languageEnglish
Article number014307
JournalPhysical Review C
Issue number1
Publication statusPublished - Jul 11 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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