Indirect sensitivity to Z's in high-energy e+e- collisions: a "standard" vs. "composite" study

TL;DR

This paper compares the phenomenology of minimal Z' models and composite Higgs models at future high-energy e+e- colliders, focusing on indirect sensitivity to new physics beyond direct detection capabilities.

Contribution

It provides a comparative analysis of how different new physics models can be indirectly probed at multi-TeV linear colliders.

Findings

Distinct indirect signatures for Z' and composite Higgs models identified.

Sensitivity estimates for future colliders to these models provided.

Highlights the importance of indirect measurements in new physics searches.

Abstract

We compare the phenomenology of two models, the so-called "minimal Z'" and an effective model an SM-like Higgs is realised as a composite state of a new strong interaction, at a multi-TeV linear collider in the hypothesis that the new physics is at a scale beyond the direct reach of the machine.