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arXiv · hep-ph/9612257

Probing Contact Interactions at High Energy Lepton Colliders

K. Cheung·S. Godfrey·J. Hewett
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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 $\ell\ell qq$ 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 $μ^+μ^-$ 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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K. Cheung, S. Godfrey, J. Hewett. 1996-12-05. Probing Contact Interactions at High Energy Lepton Colliders. https://arxiv.org/abs/hep-ph/9612257

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