3 papers
hep-ex2026
A determination of the backscattering probability of low-energy antiprotons
GBAR Collaboration, K. Park, E. Perez +42
It is commonly assumed that antiprotons impinging on a material surface annihilate promptly with the nuclei of the material. However, at kinetic energies of a few keV, this assumpt…
physics.atom-ph2026
Spectroscopy of the Hyperfine Structure of HD in Rotationally Excited States with 10-ppb Uncertainty
D. Kliukin, V. Barbé, T. Klijn Velderman +5
We report the first measurement of the total hyperfine interval in the manifold of the () rovibrational state of HD using microwave spectroscopy of HD ions in a li…
physics.atom-ph2025
Determination of a set of fundamental constants from molecular hydrogen ion spectroscopy: a modeling study
J. -Ph Karr, S. Schiller, V. I. Korobov +1
The rovibrational transition frequencies of molecular hydrogen ions (MHI) can be accurately computed using ab initio nonrelativistic quantum electrodynamics. A subset of the fundam…