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Analysis reveals potential for measuring electric dipole moments in light radioactive nuclei, suggesting a new direction in nuclear physics research.
We discuss a search for the electric dipole moment (EDM) of a light beta-radioactive ion using a compact ion trap by adapting the "frozen-spin" method. The measurement will be done on ions stripped of their valence electrons, thereby bypassing the significant Schiff screening that hinders the application of successful contemporary EDM searches using heavy neutral atoms and molecules to light nuclei. We identified ⁸Li as the most promising candidate for a proof-of-concept EDM search and we estimate that the current indirect proton EDM limit of a few 10⁻²⁵ e·cm set by ¹⁹⁹Hg measurements can be surpassed with a week of measurement time at existing facilities.
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Dutsov et al. (2025) studied this question.
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