Probing Contact Interactions at High Energy Lepton Colliders

Details Probing Contact Interactions at High Energy Lepton Colliders Probing Contact Interactions at High Energy Lepton Colliders

1996-12-05

arxiv.org/abs/hep-ph/9612257v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pg, to appear in the {\it Proceedings of the 1996 DPF/DPB Summer Study on New Directions for High Energy Physics - Snowmass

Scientific paper

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 $\ell\ell qq$ and $\ell\ell\ell'\ell'$ contact interactions using the reactions: $\ell^+ \ell^- \to \ell'^+\ell'^-,b\bar b, c\bar c$ at future $e^+e^-$ linear colliders with $\sqrt s=0.5-5$ TeV and $\mu^+\mu^-$ colliders with $\sqrt s=0.5,4$ 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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