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High-resolution laser resonance ionization spectroscopy of 143 - 147 Pm.

Dominik StuderJiri UlrichSaverio BracciniTommaso Stefano CarzanigaRugard DresslerKlaus EberhardtReinhard HeinkeUlli KösterSebastian RaederKlaus Wendt
Published in: The European physical journal. A, Hadrons and nuclei (2020)
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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