, Volume 127, Issue 1-4, pp 57-64

Hyperfine structure and \(\user1{g} \) factor measurements on Ba+ and Eu+ isotopes

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Paul and Penning ion traps have been used to determine hyperfine structure coupling constants as well as nuclear \(\user1{g} \) factors of Ba+ ions with great precision. Attempts are under way to measure both quantities for a long chain of Eu isotopes in order to determine differential hyperfine anomalies for a better understanding of the Bohr–Weisskopf effect.