Published July 25, 2003
| Version v1
Journal article
Hyperfine splitting, isotope shift, and level energy of the 3S states of Li6,7
- 1. Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 (United States)
- 2. Gesellschaft fuer Schwerionenforschung, 64291 Darmstadt (Germany)
- 3. Department of Physics, University of Windsor, Windsor, Ontario, N9B3P4 (Canada)
Description
We study the 2S-3S transition of Li6,7 by high-precision laser spectroscopy using two-photon Doppler-free excitation and photoionization detection. Interferometric cross referencing to metrologic Rb 3S-5D two-photon transitions allowed measurement of the transition isotope shift and hyperfine splitting in the 3S state with precision at the 30 kHz level. The results are IS=11 453.734(30) MHz, A3S(Li6)=35.263(15) MHz, and A3S(Li7)=93.106(11) MHz. Combined with recent theoretical work, the isotope shift yields a new value for the change in squared nuclear charge radii ΔR2=0.47(5) fm2. This is compared with other work and some existing discrepancies are resolved
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 91
- Journal Issue
- 4
- Journal Page Range
- p. 043004-043004.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35048196
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ATOMIC BEAMS; EXCITATION; HYPERFINE STRUCTURE; IONIZATION; LASER SPECTROSCOPY; LITHIUM 6; LITHIUM 7; PHOTON-ATOM COLLISIONS; S STATES; SPECTRAL SHIFT
- Descriptors DEC
- ATOM COLLISIONS; BEAMS; COLLISIONS; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; ISOTOPES; LIGHT NUCLEI; LITHIUM ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PHOTON COLLISIONS; SPECTROSCOPY; STABLE ISOTOPES
Optional Information
- Notes
- (c) 2003 The American Physical Society