Search for new physics indirect effects in e + e − → W + W − at linear colliders with polarized beams
Abstract
We discuss the potential of a
0.5TeV
linear collider to explore manifestations of extended (or alternative) electroweak models of current interest, through measurements of the reaction
e
+
e
−
→
W
+
W
−
with both initial and final states polarization. Specifically, we consider the possibility to put stringent constraints on lepton mixing (or extended lepton couplings) and
Z−
Z
′
mixing, showing in particular the usefulness of polarization in order to disentangle these effects.