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MPINP:
Research group Z. Harman – Division C. H. Keitel
Abstract:
In this Bachelor thesis the energy shift in atoms due to hadronic vacuum polarization is
evaluated. A hadronic polarization function for the photon propagator is obtained from
experimental e-/ e+ → hadronic matter-collision data via the optical theorem and the
Kramers-Kronig relations. An effective central potential is calculated applying a parameterization
for this polarization function. The energy corrections to a Coulomb potential
originating from hadronic vacuum polarization are calculated using the analytical bound
Dirac-Coulomb wave functions, as well as relativistic bound wave functions considering
the finite nuclear size. These results are compared to results from a non-relativistic theory.
