Composite Higgs models and $t\bar t$ production at future $e^+e^-$ colliders

TL;DR

This paper explores how future electron-positron colliders can test composite Higgs models by detecting deviations in top-antitop production observables across different energies.

Contribution

It analyzes potential deviations in $t\bar t$ production at future colliders as a way to probe composite Higgs scenarios, extending previous theoretical work.

Findings

Deviations in $t\bar t$ observables can signal composite Higgs models.

Sensitivity varies with collider energy and luminosity.

Future colliders can effectively test composite Higgs hypotheses.

Abstract

The study of the top quark properties will be an integral part of any particle physics activity at future leptonic colliders. In this proceeding we discuss the possibility of testing composite Higgs scenarios at $e^+e^-$ prototypes through deviations from the Standard Model predictions in $t\bar t$ production observables for various centre of mass energies, ranging from 370 GeV up to 1 TeV. This proceedings draws from Ref. arXiv:1504.05407