Nuclear Recoil Effect in the Lamb Shift of Light Hydrogenlike Atoms

Author(s): V. A. Yerokhin and V. M. Shabaev

The nuclear recoil correction in hydrogen-like atoms has been calculated nonperturbatively in the nuclear binding strength, $Z\alpha$, improving the numerical accuracy by more than two orders of magnitude.

[Phys. Rev. Lett. 115, 233002] Published Fri Dec 04, 2015