Hyperfine structure of hydrogenlike thallium isotopes
- and others
The hyperfine splitting of the 1s ground state of hydrogenlike Tl has been measured for the two stable isotopes using emission spectroscopy in the SuperEBIT electron-beam ion trap, giving 3858.22{+-}0.30 {angstrom} for {sup 203}Tl{sup 80+} and 3821.84{+-}0.34 {angstrom} for {sup 205}Tl{sup 80+} with a wavelength difference {Delta}{lambda}=36.38{+-}0.35 {angstrom}. This difference is consistent with estimates based on hyperfine anomaly data for neutral Tl only if finite size effects are included in the calculation. By using previously determined nuclear magnetic moments, and applying appropriate corrections for the nuclear charge distribution and radiative effects, the experimental splittings can be interpreted in terms of nuclear magnetization radii <r{sub m}{sup 2}>{sup 1/2}=5.83(14) fm for {sup 203}Tl and <r{sub m}{sup 2}>{sup 1/2}=5.89(14) fm for {sup 205}Tl. These values are 10% larger than derived from single-particle nuclear magnetization models, and are slightly larger than the corresponding charge distributions.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 40277054
- Journal Information:
- Physical Review A, Vol. 64, Issue 3; Other Information: DOI: 10.1103/PhysRevA.64.032506; Othernumber: PLRAAN000064000003032506000001; 009109PRA; PBD: Sep 2001; ISSN 1050-2947
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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