High-precision measurements of the hyperfine structure of cobalt ions in the deep ultraviolet range

Á Koszorús; M Block; P Campbell; B Cheal; R P de Groote; W Gins; I D Moore; A Ortiz-Cortes; A Raggio; J Warbinek

doi:10.1038/s41598-023-31378-1

High-precision measurements of the hyperfine structure of cobalt ions in the deep ultraviolet range

Sci Rep. 2023 Mar 23;13(1):4783. doi: 10.1038/s41598-023-31378-1.

Authors

Á Koszorús^{1

2}, M Block^{3

4

5}, P Campbell⁶, B Cheal⁷, R P de Groote^{8

9}, W Gins⁸, I D Moore⁸, A Ortiz-Cortes^{8

10}, A Raggio⁸, J Warbinek³

Affiliations

¹ Department of Physics, University of Liverpool, Liverpool, L69 7ZE, United Kingdom. agota.koszorus@cern.ch.
² Experimental Physics Department, CERN, CH1211, Geneva 23, Switzerland. agota.koszorus@cern.ch.
³ GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany.
⁴ Helmholtz Institute Mainz, 55099, Mainz, Germany.
⁵ Department of Chemistry - TRIGA site, University of Mainz, 55099, Mainz, Germany.
⁶ Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom.
⁷ Department of Physics, University of Liverpool, Liverpool, L69 7ZE, United Kingdom.
⁸ Department of Physics, University of Jyväskylä, PB 35(YFL), 40351, Jyväskylä, Finland.
⁹ Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001, Leuven, Belgium.
¹⁰ Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen, France.

Abstract

High-precision hyperfine structure measurements were performed on stable, singly-charged [Formula: see text]Co ions at the IGISOL facility in Jyväskylä, Finland using the collinear laser spectroscopy technique. A newly installed light collection setup enabled the study of transitions in the 230 nm wavelength range from low-lying states below 6000 cm[Formula: see text]. We report a 100-fold improvement on the precision of the hyperfine A parameters, and furthermore present newly measured hyperfine B paramaters.

Abstract

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