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Updated: Sep 17, 2025

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Nonlinear Calcium King Plot Constrains New Bosons and Nuclear Properties.

Alexander Wilzewski1, Lukas J Spieß1, Malte Wehrheim1

  • 1Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.

Physical Review Letters
|June 27, 2025
PubMed
Summary

King plots reveal nonlinearities in calcium isotope shifts, potentially indicating beyond-standard-model physics. These nonlinearities, however, are largely explained by nuclear polarization within the standard model, not new physics.

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