H. Spiesberger

The $\gamma Z$-box correction and its impact on parity-violating deep-inelastic scattering

The $\gamma Z$-box correction is an important electroweak contribution to precision parity-violation measurements, but its conventional low-energy treatment relies on an ambiguous effective quark-mass prescription. We revisit this correction using a finite-mass calculation that provides a well-defined perturbative cont...