Searching for new physics scenarios at e+e- linear colliders with polarized beams

Abstract

Four-fermion contact interactions can manifest themselves through deviations of observables from the standard model (SM) predictions. Wc consider a number of such nonstandard scenarios, and discuss their identification as sources of deviations in fermion-pair production processes at the International Linear Collider (ILC) with high energy √s = 1 TeV and time-integrated luminosity Zint = 1000 fb-1. respectively. if they were observed. The availability of initial beams longitudinal polarization is also taken into account in the analysis.