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Search for single-top production with the ZEUS detector at HERA

Dominik Dannheim
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Abstract

A search for anomalous single-top production, ep -> etX, t -> Wb, has been made with the ZEUS detector at HERA using an integrated luminosity of 130 pb^-1. No evidence for top-quark production was found in either the leptonic or the hadronic decay channel of the W boson. The resulting constraints on single-top production via quark-flavour changing neutral current (FCNC) transitions exclude a substantial region in the FCNC t-u-gamma coupling not ruled out by other experiments.

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Dominik Dannheim. 2003-08-23. Search for single-top production with the ZEUS detector at HERA. https://arxiv.org/abs/hep-ex/0308058

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