Preprint
Nov 2026
Precise and accurate nuclear electric quadrupole moment of $^{223}$Ra from molecular spectroscopy
Nuclear electric quadrupole moments of unstable isotopes are commonly extracted from laser spectroscopy of the atomic hyperfine structure, where the accuracy is limited to the several-percent level by the available electric-field-gradient (EFG) calculations. In this study, we determine the spectroscopic quadrupole mome...
C. M. Fajardo-Zambrano, M. Athanasakis-Kaklamanakis, L. Lalanne et al.
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