Resonances and Electroweak Observables at the ILC

TL;DR

This paper explores how precise electroweak measurements at the ILC can reveal new physics by relating resonance parameters to low-energy observables, enhancing our understanding of electroweak symmetry breaking.

Contribution

It derives generic relations between resonance parameters and low-energy observables, aiding the interpretation of ILC data in the context of new physics.

Findings

Relations between resonance parameters and electroweak observables derived

Implications for ILC's sensitivity to new physics in the electroweak sector

Guidance for combining ILC and LHC results in new physics searches

Abstract

Precise measurements of the interactions of electroweak vector bosons at the ILC yield information about the physics of electroweak symmetry breaking. In order to combine this with the possible observation of new resonances or the effects of new strong interactions at the LHC, we need to relate resonance parameters with low-energy observables. We derive these relations for a generic setup and draw conclusions about the new-physics reach of the ILC in the electroweak sector.