Non-Supersymmetric New Physics from Moeller Scattering

TL;DR

This paper investigates how new physics models with extra Z' bosons or doubly charged scalars influence polarized Moeller scattering, providing constraints from past and future experiments to test these theories.

Contribution

It offers a comprehensive effective operator analysis of new physics effects on Moeller scattering, including Wilson coefficients and experimental constraints for various models.

Findings

Constraints on coupling constants and mixing angles derived from SLAC E158 data.

Projected sensitivity improvements from future JLAB experiments.

Identification of parameter space regions compatible with current and future measurements.

Abstract

We study in an effective operator approach how the effects of new physics from various scenarios containing extra $Z'$ gauge bosons or doubly charged scalars can affect, and thus be tested by the precision polarized Moeller scattering experiment. We give Wilson coefficients for various classes of models, and we deduce constraints on the parameter space of the relevant coupling constants and mixing angles from the results of the SLAC E158 experiment, and that projected from the future high precision JLAB experiment.