Speaker
Description
Parity-violating asymmetries (PVAs) at low energies provide clean and sensitive probes of physics beyond the Standard Model. We discuss the importance of higher-order electroweak effects for these observables in the Standard Model using a low-energy effective field theory approach, which allows the resummation of all large logarithms arising in the perturbative regime between the electroweak scale and the low-energy scale relevant for the experiment. Within this framework, we present the NLO electroweak contributions at leading-logarithmic (LL) accuracy to the left-right PVA in low-energy Møller scattering, combined with QED corrections at NNLO and hadronic effects. The results are implemented in the Monte Carlo framework McMule, providing fully differential predictions tailored to the MOLLER experiment. We also comment on the size and phenomenological relevance of higher-order logarithmic corrections at NLL accuracy.