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<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>α</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo mathvariant="bold" stretchy="false">(</mml:mo><mml:mi>Z</mml:mi><mml:mi>α</mml:mi><mml:msup><mml:mo mathvariant="bold" stretchy="false">)</mml:mo><mml:mn>4</mml:mn></mml:msup><mml:mi>m</mml:mi></mml:math>contributions to the Lamb shift and the fine structure in light muonic atoms
Corrections to energy levels in light muonic atoms are investigated in order $\alpha^2(Z\alpha)^4m$. 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 …