Polarization Asymmetries in $\gamma e$ Collisions and Triple Gauge Boson Couplings Revisited

TL;DR

This paper reviews how polarized gamma-electron collisions at the NLC can effectively constrain anomalous triple gauge boson couplings, complementing LHC measurements.

Contribution

It demonstrates the potential of polarization asymmetries in gamma-electron collisions to set strong bounds on anomalous gauge couplings, enhancing existing collider constraints.

Findings

Polarization asymmetries provide sensitive probes of anomalous couplings.

Combined measurements significantly tighten bounds on $ ext{CP}$-conserving couplings.

Constraints are complementary to LHC data, improving overall sensitivity.

Abstract

The capability of the NLC run in the $\gamma e$ collision mode to probe the CP-conserving $\gamma WW$ and $\gamma ZZ$ anomalous couplings through the use of the polarization asymmetry is reviewed. When combined with other measurements, very strong constraints on both varieties of anomalous couplings can be obtained. We show that these bounds are complementary to those that can be extracted from data taken at the LHC.