Studer D, Ulrich J, Braccini S, Carzaniga TS, Dressler R, Eberhardt K, Heinke R, Köster U, Raeder S, Wendt K. High-resolution laser resonance ionization spectroscopy of
143 - 147 Pm.
THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI 2020;
56:69. [PMID:
32684818 PMCID:
PMC7357814 DOI:
10.1140/epja/s10050-020-00061-8]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/07/2020] [Indexed: 06/11/2023]
Abstract
We present the results of high-resolution laser spectroscopy of the long-lived radioactive isotopes 143 - 147 Pm. The hyperfine structures and isotope shifts in two different atomic ground-state transitions at 452 nm and 468 nm were probed by in-source laser spectroscopy at the RISIKO mass separator in Mainz, using the PI-LIST ion source. From the hyperfine coupling constants the nuclear magnetic dipole and electric quadrupole moments for 143 - 147 Pm were derived, and the measured isotope shifts allowed the extraction of changes in nuclear mean square charge radii.
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