Precision determination of isotope shifts in ytterbium and implications for new physics
Atomic Physics
2022-02-18 v2
Abstract
We report measurements of isotope shifts for the five spinless Yb isotopes on the transition using Doppler-free two-photon spectroscopy. We combine these data with existing measurements on two transitions in Yb [Phys. Rev. Lett. 125, 123002 (2020)], where deviation from King-plot linearity showed hints of a new bosonic force carrier at the 3 level. The combined data strongly reduces the significance of the new-physics signal. We show that the observed nonlinearity in the joint Yb/Yb King-plot analysis can be accounted for by the deformation of the Yb nuclei.
Keywords
Cite
@article{arxiv.2111.01429,
title = {Precision determination of isotope shifts in ytterbium and implications for new physics},
author = {N. L. Figueroa and J. C. Berengut and V. A. Dzuba and V. V. Flambaum and D. Budker and D. Antypas},
journal= {arXiv preprint arXiv:2111.01429},
year = {2022}
}
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