Constraints on New Heavy Gauge Bosons from e+e− → W +W −

Abstract

We discuss the potential of the International Linear Collider (ILC) to probe Z-Z' mixing and Z' mass by the reaction e+e− → W +W − with longitudinally polarized e+e− beams. We perform here a generic analysis of the deviations of the differential cross section from the Standard Model prediction, and apply it to a specific class of extended weak gauge models called as ‘minimal-Higgs’ models.