Radiative and photon-exchange corrections to new-physics contributions to energy levels in few-electron ions

The influence of hypothetical new interactions beyond the Standard Model on atomic spectra has attracted recent interest. In present work, interelectronic photon-exchange corrections and radiative quantum electrodynamic to contribution energy levels few-electron ions from a interaction are calculated. $1s$, $2s$ $2p_{1/2}$ ground states H-like, Li-like B-like considered, as motivated by proposals use isotope shift spectroscopy in order set stringent constraints interactions. It is shown that, for light ions, comparable or even larger, up several orders magnitude, than leading one-electron interaction, when latter mediated heavy bosons.