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arXiv · 2202.01668

Tests of physics beyond the Standard Model with single-electron ions

Vincent Debierre·Christoph H. Keitel·Zoltan Harman
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Abstract

A highly effective approach to the search for hypothetical new interactions through isotope shift spectroscopy of hydrogen-like ions is presented. A weighted difference of the g factor and ground-state energy is shown to assist in the suppression of detrimental uncertainties from nuclear structure, while preserving the hypothetical contributions from new interactions. Experimental data from only a single isotope pair is required. Account is taken of the small, subleading nuclear corrections, allowing to show that, provided feasible experimental progress is achieved in UV/X-ray spectroscopy, the presented approach can yield competitive bounds on New Physics electron coupling parameters improved by more than an order of magnitude compared to leading bounds from atomic physics.

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Vincent Debierre, Christoph H. Keitel, Zoltan Harman. 2022-02-03. Tests of physics beyond the Standard Model with single-electron ions. https://arxiv.org/abs/2202.01668

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