The α²(Zα)⁴m contributions to the Lamb shift and the fine structure in light muonic atoms

الأصل · EN

Corrections to energy levels in light muonic atoms are investigated in order α²(Zα)⁴m. We pay attention to corrections which are specific for muonic atoms and include the electron vacuum polarization loop. In particular, we calculate relativistic and relativistic-recoil two-loop electron vacuum polarization contributions. The results are obtained for the levels with n=1,2 and in particular for the Lamb shift (2p₁/₂-2s₁/₂) and fine-structure intervals (2p₃/₂-2p₁/₂) in muonic hydrogen, deuterium, and muonic helium ions.