Two-fermion final states at International Linear Collider

TL;DR

This paper evaluates the potential of the International Linear Collider to discover or exclude new physics models through precise measurements of two-fermion final states, demonstrating significant future discovery prospects.

Contribution

It provides detailed calculations of $Z'$ model limits at various energies, utilizing existing simulation data to assess BSM search capabilities at future $e^+e^-$ colliders.

Findings

Large potential for BSM searches at future colliders

Calculated $Z'$ exclusion and discovery limits at multiple energies

Demonstrated the importance of precise measurements for new physics

Abstract

The pair productions of leptons and quarks at $e^+e^-$ Higgs factory are an important probe for new physics via precise measurements. The discovery and exclusion limits of $Z^\prime$ models at the International Linear Collider with $\sqrt{s} = 250$, 500 and 1000 GeV are calculated with selection efficiencies estimated in the existing full simulation studies. It shows a large potential of BSM searches with precise measurements at future energy-frontier $e^+e^-$ colliders.