6533b834fe1ef96bd129df5c
RESEARCH PRODUCT
Isotope shifts and hyperfine structure in the $\mathsf{ 3d ^2D_J \rightarrow 4p ^2P_J}$ transitions in calcium II
B. WicheKlaus WendtWilfried NörtershäuserP. MüllerK. IckerA. SchmittKlaus Blaumsubject
PhysicsIsotopeMetastabilityThermal ionizationPhysics::Atomic PhysicsElectronic structureAtomic physicsSpectroscopyGround stateHyperfine structureAtomic and Molecular Physics and OpticsExcitationdescription
The isotope shift and hyperfine structure in the three \(\) - transitions in Ca II have been studied by fast ion beam collinear laser spectroscopy for all stable Ca isotopes. The metastable 3d states were populated within the surface ionization source of a mass separator with a probability of about 0.1%. After resonant excitation to the 4p levels with diode laser light around 850 nm the uv photons from the \(\) transitions to the ground state were used for detection. Hyperfine structure parameters A and B for the odd isotope 43Ca, as evaluated from the splittings observed, agree well with theoretical predictions from relativistic many-body perturbation theory. Field shift constants \(\) and specific mass shift constants \(\) were extracted from the measured isotope shifts and are discussed in comparison with expectation values from theory.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-05-01 | The European Physical Journal D - Atomic, Molecular and Optical Physics |