An effective field theory approach for electroweak interactions in the high energy limit

TL;DR

This paper develops an effective field theory framework for electroweak interactions at high energies, enabling more accurate calculations of scattering amplitudes in the Regge limit within the Standard Model.

Contribution

It introduces gauge invariant Wilson lines and effective emission vertices to describe reggeized electroweak bosons, extending previous results to higher-order calculations.

Findings

Reproduces known leading logarithmic electroweak Regge trajectories.

Derives interaction kernels for electroweak bosons.

Establishes a foundation for higher-order perturbative calculations.

Abstract

We present an effective action for the electroweak sector of the Standard Model valid for the calculation of scattering amplitudes in the high energy (Regge) limit. Gauge invariant Wilson lines are introduced to describe reggeized degrees of freedom whose interactions are generated by effective emission vertices. From this approach previous results at leading logarithmic accuracy for electroweak boson Regge trajectories are reproduced together with the corresponding interaction kernels. The proposed framework lays the path for calculations at higher orders in perturbation theory.