Hyperfine spectroscopy of antihydrogen, hydrogen, and deuterium

Abstract

The prospects of tests of CPT symmetry using precision spectroscopy of antihydrogen are discussed with special emphasis on the ground-state hyperfine structure, a measurement of which is the aim of the ASACUSA collaboration at the AD/ELENA facility of CERN. Ongoing parallel experiments using hyperfine spectroscopy of hydrogen and deuterium aiming at studying Lorentz invariance by determining coefficients of the Standard Model Extension framework are described.

8 pages 2 figures, Physics of Elementary Particles and Atomic Nuclei, in print, as part of the proceedings of the International Conference on Precision Physics and Fundamental Physical Constants, FFK2021

References in corpus (3)

• Proton structure corrections to electronic and muonic hydrogen hyperfine splitting
• The anti-proton charge radius
• A hydrogen beam to characterize the ASACUSA antihydrogen hyperfine spectrometer