Measurements of the ground-state Lamb shift and electron-correlation effects in hydrogenlike and heliumlike uranium
- University of Michigan, Ann Arbor, Michigan 48109-1090 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
We report measurements of transition energies for highly ionized uranium. For hydrogenic uranium we have measured 102 130[plus minus]92 eV for the 2[ital p][sub 3/2-]1[ital s][sub 1/2] transition. This measurement is sensitive to the 1[ital s] Lamb shift, probing the electron self-energy in high-field QED. In addition, we have measured the (1[ital s]2[ital p])[sup 1][ital P][sub 1],[sup 3][ital P][sub 2-](1[ital s][sup 2])[sup 1][ital S][sub 0] transition in heliumlike uranium as 100 598[plus minus]111 eV, probing relativistic electron-electron correlation effects. Both measurements were obtained with a Doppler spectrometer, a proven technique which we have adapted to the field of high-[ital Z] precision atomic transition-energy measurements. These measurements demonstrate the potential of this technique to attain [similar to]1 eV uncertainties.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7072092
- Journal Information:
- Physical Review A; (United States), Vol. 50:3; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
URANIUM
ELECTRON CORRELATION
LAMB SHIFT
DOPPLER EFFECT
ENERGY-LEVEL TRANSITIONS
GROUND STATES
HELIUM
HYDROGEN
ISOELECTRONIC ATOMS
QUANTUM ELECTRODYNAMICS
RELATIVISTIC RANGE
SELF-ENERGY
ACTINIDES
ATOMS
CORRELATIONS
ELECTRODYNAMICS
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
FIELD THEORIES
FLUIDS
GASES
METALS
NONMETALS
QUANTUM FIELD THEORY
RARE GASES
SPECTRAL SHIFT
664400* - Experimentally Derived Information on Atomic & Molecular Properties- (1992-)