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hep-ex2025
Demonstration of deuterium's enhanced sensitivity to symmetry violations governed by the Standard-Model Extension
Amit Nanda, Daniel Comparat, Olivier Dulieu +5
We have performed hyperfine spectroscopy of two transitions in ground-state deuterium and searched for violations of CPT and Lorentz symmetry that would manifest as sidereal variat…
hep-ex2024
CPT and Lorentz symmetry tests with hydrogen using a novel in-beam hyperfine spectroscopy method applicable to antihydrogen experiments
Lilian Nowak, Chloe Malbrunot, Martin C. Simon +8
We present a Rabi-type measurement of two ground-state hydrogen hyperfine transitions performed in two opposite external magnetic field directions. This puts first constraints at t…