RECOIL CORRECTION TO THE GROUND-STATE ENERGY OF HYDROGENLIKE ATOMS

The recoil correction to the ground-state energy of hydrogenlike atoms is calculated to all orders in alpha Z in the range Z=1-110. The nucl ear size corrections to the recoil effect are partially taken into acc ount. In the case of hydrogen, the relativistic recoil correction beyo nd the Salpeter contribution and the nonrelativistic nuclear size corr ection to the recoil effect amounts to -7.2(2) kHz. The total recoil c orrection to the groundstate energy in hydrogenlike uranium (U-238(91)) constitutes 0.46 eV.