The proton structure in and out of muonic hydrogen
A Antognini, F Hagelstein… - Annual Review of …, 2022 - annualreviews.org
Laser spectroscopy of muonic atoms has been recently used to probe properties of light
nuclei with unprecedented precision. We introduce nuclear effects in hydrogen-like atoms …
nuclei with unprecedented precision. We introduce nuclear effects in hydrogen-like atoms …
Atomic structure and collision dynamics with highly charged ions
The research progresses on the investigations of atomic structure and collision dynamics
with highly charged ions based on the heavy ion storage rings and electron ion beam traps …
with highly charged ions based on the heavy ion storage rings and electron ion beam traps …
Collinear Laser Spectroscopy of Transitions in Helium-like
Transition frequencies and fine-structure splittings of the 2 S 1 3→ 2 P 3 J transitions in
helium-like C 4+ 12 were measured by collinear laser spectroscopy on a 1-ppb level …
helium-like C 4+ 12 were measured by collinear laser spectroscopy on a 1-ppb level …
Precision-spectroscopic determination of the binding energy of a two-body quantum system: The hydrogen atom and the proton-size puzzle
S Scheidegger, F Merkt - Physical Review Letters, 2024 - APS
Precision measurements in Rydberg states of H with principal quantum number n in the
range between 20 and 30 are reported. In the presence of homogeneous electric fields with …
range between 20 and 30 are reported. In the presence of homogeneous electric fields with …
Direct laser cooling of calcium monohydride molecules
We demonstrate optical cycling and laser cooling of a cryogenic buffer-gas beam of calcium
monohydride (CaH) molecules. We measure vibrational branching ratios for laser cooling …
monohydride (CaH) molecules. We measure vibrational branching ratios for laser cooling …
Deuterium spectroscopy for enhanced bounds on physics beyond the standard model
We consider the impact of combining precision spectroscopic measurements made in
atomic hydrogen with similar measurements made in atomic deuterium on the search for …
atomic hydrogen with similar measurements made in atomic deuterium on the search for …
Ramsey Spectroscopy of the Hyperfine Interval in Atomic Hydrogen
RG Bullis, C Rasor, WL Tavis, SA Johnson… - Physical Review Letters, 2023 - APS
The 2 S 1/2 hyperfine interval in atomic hydrogen was measured using Ramsey
spectroscopy with a thermal beam cooled to cryogenic temperatures. The measured value is …
spectroscopy with a thermal beam cooled to cryogenic temperatures. The measured value is …
Self-consistent extraction of spectroscopic bounds on light new physics
Fundamental physical constants are determined from a collection of precision
measurements of elementary particles, atoms, and molecules. This is usually done under …
measurements of elementary particles, atoms, and molecules. This is usually done under …
Toward XUV frequency comb spectroscopy of the 1 S–2 S transition in
The energy levels of hydrogen-like atoms and ions are accurately described by bound-state
quantum electrodynamics (QED). He+ ions have a doubly charged nucleus, which …
quantum electrodynamics (QED). He+ ions have a doubly charged nucleus, which …
Comprehensive theory of the Lamb shift in light muonic atoms
A comprehensive theory of the Lamb shift in light muonic atoms such as μ H, μ D, μ 3 He+,
and μ 4 He+ is presented, with all quantum electrodynamic corrections included at the …
and μ 4 He+ is presented, with all quantum electrodynamic corrections included at the …