Logarithmic EW corrections at two-loop
Abstract We present the implementation of next-to-next-to-leading order (NNLO) electroweak (EW) virtual corrections at next-to-leading logarithmic (NLL) accuracy in the amplitude generator . The implementation covers the automated computation of processes involving massless fermions and transversely polarised vector bosons. For energies above the EW scale, logarithmic EW corrections are strongly enhanced in the tails of kinematic distributions of key LHC processes, reaching several tens of percent at NLO and several percent at NNLO. The two-loop implementation is validated against analytical results from the literature. We present phenomenological results for representative LHC processes and discuss the role of two-loop EW corrections in reducing theoretical uncertainties from missing higher-order contributions.
Authors
- Jonas M. Lindert (ORCID: https://orcid.org/0000-0001-6936-998X)
- Lorenzo Mai (ORCID: https://orcid.org/0009-0007-6209-9658)
Institutions
- University of Sussex (GB)
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova (IT)
Publication Details
- Journal
- The European Physical Journal C
- Published
- 2026-07-30
- DOI
- https://doi.org/10.1140/epjc/s10052-026-16141-w
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- European Commission
- Science and Technology Facilities Council