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RESEARCH PRODUCT

The electronic field shift factor of the 4s2S1/2?4p2PJ transitions in CaII

L. VermeerenRainer NeugartChristof SchulzA KleinRoger SilveransPeter Lievens

subject

Nuclear and High Energy PhysicsMuonIon beamField (physics)ScatteringChemistryCondensed Matter PhysicsResonance (particle physics)Atomic and Molecular Physics and OpticsEffective nuclear chargePhysics::Atomic PhysicsPhysical and Theoretical ChemistryAtomic physicsPerturbation theorySpectroscopy

description

The isotope shifts (IS) of the resonance lines 4s2S1/2−4p2PJin CaII (seven isotopes) have been measured by fast ion beam collinear laser spectroscopy (FIBCLS) with non-optical detection of the resonant laser-ion interaction. The electronic field shift factorF was derived from the experimental IS via a King plot procedure using the mean square nuclear charge radii from muon spectroscopy andelectron scattering. TheJ-independent resultF=−283(6) Mhz/fm2 was obtained. TheF-value resulting from extensive many body perturbation theory (MBPT) calculations, recently performed by Martensson-Pendrill et al., is in excellent agreement with the experimental value, confirming the reliability of the MBPT procedure.

https://doi.org/10.1007/bf00568146