Changes in mean-squared charge radii and magnetic moments of 179-184TI measured by in-source laser spectroscopy

• Verfasst von: Barzach, A. E. [VerfasserIn]
• Verfasst von: Fink, Daniel [VerfasserIn]
• Titel: Changes in mean-squared charge radii and magnetic moments of 179-184TI measured by in-source laser spectroscopy
• Verf.angabe: A.E. Barzakh, A.N. Andreyev, T.E. Cocolios, R.P. de Groote, D.V. Fedorov, V.N. Fedosseev, R. Ferrer, D.A. Fink, L. Ghys, M. Huyse, U. Köster, J. Lane, V. Liberati, K.M. Lynch, B.A. Marsh, P.L. Molkanov, T.J. Procter, E. Rapisarda, S. Rothe, K. Sandhu, M.D. Seliverstov, A.M. Sjödin, C. Van Beveren, P. Van Duppen, M. Venhart, and M. Veselský
• E-Jahr: 2017
• Jahr: 23 January 2017
• Umfang: 12 S.
• Teil: volume:95
• Teil: year:2017
• Teil: number:1
• Teil: elocationid:014324
• Teil: extent:12
• Fussnoten: Die Zahlen 179-184 sind im Titel hochgestellt ; Gesehen am 04.10.2018
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2017
• Band/Heft Quelle: 95(2017), 1, Artikel-ID 014324
• ISSN Quelle: 2469-9993
• DOI: doi:10.1103/PhysRevC.95.014324
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1581548591

Abstract

Hyperfine structure and isotope shifts have been measured for the ground and isomeric states in the neutron-deficient isotopes 179-184Tl using the 276.9-nm transition. The experiment has been performed at the CERN-Isotope Separator On-Line facility using the in-source resonance-ionization laser spectroscopy technique. Spins for the ground states in 179,181,183Tl have been determined as I=1/2. Magnetic moments and changes in the nuclear mean-square charge radii have been deduced. By applying the additivity relation for magnetic moments of the odd-odd Tl nuclei the leading configuration assignments were confirmed. A deviation of magnetic moments for isomeric states in 182,184Tl from the trend of the heavier Tl nuclei is observed. The charge radii of the ground states of the isotopes 179-184Tl follow the trend for isotonic (spherical) lead nuclei. The noticeable difference in charge radii for ground and isomeric states of 183,184Tl has been observed, suggesting a larger deformation for the intruder-based 9/2− and 10− states compared to the ground states. An unexpected growth of the isomer shift for 183Tl has been found.