4 papers · 1 filter
Radiative Corrections to One-Photon Decays of Hydrogenic Ions
J. Sapirstein, K. Pachucki, K. T. Cheng
Radiative corrections to the decay rate of n=2 states of hydrogenic ions are calculated. The transitions considered are the M1 decay of the 2s state to the ground state and the E1(…
Vacuum polarization calculations for hydrogenlike and alkalilike ions
J. Sapirstein, K. T. Cheng
Complete vacuum polarization calculations incorporating finite nuclear size are presented for hydrogenic ions with principal quantum numbers n=1-5. Lithiumlike, sodiumlike, and cop…
Two-loop corrections to the decay rate of parapositronium
Gregory S. Adkins, Nathan M. McGovern, Richard N. Fell +1
Order corrections to the decay rate of parapositronium are calculated. A QED scattering calculation of the amplitude for electron-positron annihilation into two photons at th…
Radiative Corrections to Parity Nonconserving Transitions in Atoms
J. Sapirstein, K. Pachucki, A. Veitia +1
The matrix element of a bound electron interacting with the nucleus through exchange of a Z boson is studied for the gauge invariant case of transitions in hydr…