Probing Anomalous Top-Couplings at Polarized Linear Collider

TL;DR

This paper investigates the potential to detect anomalous top-quark couplings at future linear colliders by analyzing lepton energy spectra in top-antitop production with polarized beams, using a model-independent approach.

Contribution

It introduces a model-independent method to probe anomalous top-couplings through lepton spectra analysis at polarized linear colliders.

Findings

Lepton energy spectra are sensitive to anomalous top couplings.

Beam polarization enhances the detection sensitivity.

The approach is applicable for arbitrary polarization configurations.

Abstract

The energy spectra of the lepton(s) in eebar --> ttbar --> l^{+-}X/ l^+l^- X' at next linear colliders (NLC) are analyzed a model-independent way for arbitrary longitudinal beam polarizations as a general test of possible anomalous top-quark couplings.