17 citations · 48 across the 6 of their papers we have counts for
5 papers · 1 filter
Nuclear Predictions for Spectroscopy without Nuclear Errors
C. P. Burgess, P. Hayman, Markus Rummel +1
Nuclear-structure effects often provide an irreducible theory error that prevents using precision atomic measurements to test fundamental theory. We apply newly developed effective…
Precision Nuclear-Spin Effects in Atoms: EFT Methods for Reducing Theory Errors
L. Zalavari, C. P. Burgess, P. Hayman +1
We use effective field theory to compute the influence of nuclear structure on precision calculations of atomic energy levels. As usual, the EFT's effective couplings correspond to…
Reduced Theoretical Error for QED Tests with 4He+ Spectroscopy
C. P. Burgess, P. Hayman, Markus Rummel +1
We apply point-particle effective field theory (PPEFT) to electronic and muonic 4He+ ions, and use it to identify linear combinations of spectroscopic measurements for which the th…
Point-Particle Effective Field Theory III: Relativistic Fermions and the Dirac Equation
C. P. Burgess, Peter Hayman, Markus Rummel +1
We formulate point-particle effective field theory (PPEFT) for relativistic spin-half fermions interacting with a massive, charged finite-sized source using a first-quantized effec…
The Proton Radius Problem and Point-Particle Effective Field Theory
C. P. Burgess, Peter Hayman, Markus Rummel +1
We argue that the proton's charge-radius contributes differently to shifts of Hydrogen-like energy levels than naively expected due to an incorrect choice for the boundary conditio…