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arXiv · hep-ph/9606419

Spin Correlations in Top-Quark Pair Production at $e^+e^-$ Colliders

Stephen Parke·Yael Shadmi
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Abstract

We show that top-quark pairs are produced in an essentially unique spin configuration in polarized $e^+e^-$ colliders at all energies above the threshold region. Since the directions of the electroweak decay products of polarized top-quarks are strongly correlated to the top-quark spin axis, this unique spin configuration leads to a distinctive topology for top-quark pair events which can be used to constrain anomalous couplings to the top-quark. A significant interference effect between the {\it longitudinal} and {\it transverse} W-bosons in the decay of polarized top-quarks is also discussed. These results are obtained at leading order in perturbation theory but radiative corrections are expected to be small.

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Stephen Parke, Yael Shadmi. 1996-08-30. Spin Correlations in Top-Quark Pair Production at $e^+e^-$ Colliders. https://doi.org/10.1016/0370-2693(96)00998-7

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