activity
20032026
most citedPredictive powers of chiral perturbation theory in Compton scattering off protons

99 citations · 977 across the 43 of their papers we have counts for

collaborators

43 papers

physics.atom-ph2026

Hadronic vacuum polarization in hydrogen-like atoms and ions amid the interplay of recoil and finite-size effects

Franziska Hagelstein, Vadim Lensky, Bogdan Malaescu +1

Hadronic vacuum polarization (hVP) enters simple atomic systems at a level that is small yet decisive for the precision spectroscopy now underway. We evaluate the hVP contributions…

nucl-th2023

Chiral perturbation theory of the hyperfine splitting in (muonic) hydrogen

Franziska Hagelstein, Vadim Lensky, Vladimir Pascalutsa

The ongoing experimental efforts to measure the hyperfine transition in muonic hydrogen prompt an accurate evaluation of the proton-structure effects. At the leading order in ,…

hep-ph2023

The QED of Bernabéu-Tarrach sumrule for electric polarizability and its implication for the Lamb shift

Volodymyr Biloshytskyi, Iulian Ciobotaru-Hriscu, Franziska Hagelstein +2

We attempt to rehabilitate a sum rule (proposed long ago by Bernabéu and Tarrach) which relates the electric polarizability of a particle to the total photoabsorption of quasi-real…

physics.atom-ph2022★ 52 cited

Comprehensive theory of the Lamb shift in light muonic atoms

K. Pachucki, V. Lensky, F. Hagelstein +3

A comprehensive theory of the Lamb shift in light muonic atoms such as H, D, He, and He is presented, with all quantum electrodynamic corrections included a…

nucl-th2022★ 1 cited

Muonic-Atom Spectroscopy and Impact on Nuclear Structure and Precision QED Theory

Aldo Antognini, Sonia Bacca, Andreas Fleischmann +10

Recent progress in laser and x-ray spectroscopy of muonic atoms offers promising long-term possibilities at the intersection of atomic, nuclear and particle physics. In muonic hydr…

hep-ph2022★ 1 cited

Theoretical discrepancies in the nucleon spin structure and the hyperfine splitting of muonic hydrogen

Vladimir Pascalutsa, Franziska Hagelstein, Vadim Lensky

Two groups, ours (Mainz) and Bochum, have recently been re-evaluating the spin polarizabilities and spin structure functions at low , using the baryon chiral perturbation theory…