Quantum electrodynamic corrections to the $1s3d$ states of the helium atom

Albert Wienczek, Krzysztof Pachucki, Mariusz Puchalski +2

We perform quantum electrodynamic calculations of the ionization energy of the $1s3d$ states of the ${}^4$He atom, including a complete evaluation of the $m{\alpha }^6$ correction. We find a…