The Uehling correction to the energy levels in a pionic atom
Atomic Physics
2009-11-11 v2
Abstract
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 and the pion-to-electron mass ratio. Certain asymptotics of the result are also presented.
Cite
@article{arxiv.physics/0510079,
title = {The Uehling correction to the energy levels in a pionic atom},
author = {S. G. Karshenboim and E. Yu. Korzinin and V. G. Ivanov},
journal= {arXiv preprint arXiv:physics/0510079},
year = {2009}
}