Abstract
High resolution collinear laser spectroscopy has been performed on singly charged ions of \(^{50,51}\)V at the IGISOL facility of the Accelerator Laboratory, University of Jyväskylä, Finland. Eleven ionic transitions were investigated in the ultraviolet wavelength range, improving the precision of the known hyperfine parameters and providing newly measured values. We report also the isotope shifts between the two natural isotopes for five of the studied transitions. These results provide benchmark data for the electronic structure of vanadium and open the way for future studies of nuclear-structure phenomena along the vanadium isotopic chain using laser spectroscopy techniques.
Data availability
The data supporting this study, together with additional notes on the analysis, are available in the Zenodo repository: https://doi.org/10.5281/zenodo.17910031. Further questions regarding the data or analysis can be addressed to the corresponding author.
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Funding
This project has received funding from the Academy of Finland under project number 339245, from KU Leuven internal fund GZU-E6026-KAC+/24/005 annex C14/22/104, and from the UK Science and Technology Facilities Council (STFC) under grant number ST/Y000242/1. A.K. acknowledges funding support from the Research Foundation – Flanders (FWO) through a travel grant supporting research at the University of Jyväskylä.
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A.K. prepared the manuscript, A.K, A.R., S.C., D.B. and J.W. conducted the experiment, A.K. analyzed the results, Á.K., R.d.G., P.C, I.D.M and B.C contributed to the preparation of the manuscript. All authors reviewed the manuscript.
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Karadimas, A., Bettaney, D., Campbell, P. et al. High precision measurements of the hyperfine structure of Vanadium ions in the ultraviolet range. Sci Rep (2026). https://doi.org/10.1038/s41598-026-44426-3
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DOI: https://doi.org/10.1038/s41598-026-44426-3
