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arXiv · hep-ph/9501379

Probing Strongly-interacting Electroweak Dynamics through $W^+W^-/ZZ$ Ratios at Future $e^+e^-$ Colliders

V. Barger·Kingman Cheung·T. Han·R. J. N. Phillips
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Abstract

We point out that the ratio of $W^+ W^- \to W^+ W^-$ and $W^+W^- \to ZZ$ cross sections is a sensitive probe of the dynamics of electroweak symmetry breaking, in the CM energy region $\sqrt {s_{\rm ww}^{}} \agt 1$~TeV where vector boson scattering may well become strong. We suggest ways in which this ratio can be extracted at a 1.5 TeV $e^+e^-$ linear collider, using $W^\pm,Z \to jj$ hadronic decays and relying on dijet mass resolution to provide statistical discrimination between $W^\pm$ and $Z$. $WW$ fusion processes studied here are unique for exploring scalar resonances of mass about 1 TeV and are complementary to studies via the direct channel $e^+ e^- \rightarrow W^+W^-$ for the vector and non-resonant cases. With an integrated luminosity of 200 fb$^{-1}$, the signals obtained are statistically significant. Comparison with a study of $e^-e^- \rightarrow ννW^-W^-$ process is made. Enhancements of the signal rate from using a polarized electron beam, or at a 2 TeV $e^+e^-$ linear collider and possible higher energy $μ^+μ^-$ colliders, are also presented.

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V. Barger, Kingman Cheung, T. Han, R. J. N. Phillips. 1995-01-25. Probing Strongly-interacting Electroweak Dynamics through $W^+W^-/ZZ$ Ratios at Future $e^+e^-$ Colliders. https://doi.org/10.1103/physrevd.52.3815

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