385 citations · 2.6k across the 90 of their papers we have counts for
4 papers · 1 filter
New Measurement of the 2S Hyperfine Interval in Atomic Hydrogen
N. Kolachevsky, A. Matveev, J. Alnis +3
An optical measurement of the 2S hyperfine interval in atomic hydrogen using two-photon spectroscopy of the 1S-2S transition gives a value of 177 556 834.3(6.7) Hz. The uncertainty…
K0 meson physics in the gravitation field: a constraint on the equivalence principle
Savely G. Karshenboim
K0-K0bar oscillations are extremely sensitive to the K0 and K0bar energy at rest. Even assuming m_K0=m_K0bar, the energy is not granted to be the same if gravitational effects on K…
A constraint on antigravity of antimatter from precision spectroscopy of simple atoms
Savely G. Karshenboim
Consideration of antigravity for antiparticles is an attractive target for various experimental projects. There are a number of theoretical arguments against it but it is not quite…
Hadronic Light-by-Light Scattering in the Muonium Hyperfine Splitting
S. G. Karshenboim, V. A. Shelyuto, A. I. Vainshtein
We consider an impact of hadronic light-by-light scattering on the muonium hyperfine structure. A shift of the hyperfine interval is calculated with…