Probing Contact Interactions at High Energy Lepton Colliders
Abstract
Fermion compositeness and other new physics can be signalled by the presence of a strong four-fermion contact interaction. Here we present a study of qq and '' contact interactions using the reactions: + - '+'-,b b, c c at future e+e- linear colliders with s=0.5-5 TeV and μ+μ- colliders with s=0.5,4 TeV. We find that very large compositeness scales can be probed at these machines and that the use of polarized beams can unravel their underlying helicity structure.
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