Physics – Atomic Physics
Scientific paper
2005-10-10
Physics
Atomic Physics
Scientific paper
10.1139/P06-010
We consider a correction to energy levels in a pionic atom induced by the
Uehling potential, i.e., by a free electron vacuum-polarization loop. The
calculation is performed for circular states (l=n-1). The result is obtained in
a closed analytic form as a function of $ Z\alpha$ and the pion-to-electron
mass ratio. Certain asymptotics of the result are also presented.
Ivanov Vladimir G.
Karshenboim Savely G.
Korzinin Evgeny Yu.
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