Single Top Production at HERA and THERA

Abstract

We study the single top production mediated by flavor changing neutral current via both of the tqγt-q-\gamma and tqZt-q-Z vertices (here q represents c and u quarks) in ep collisions at two colliders HERA and THERA. Contribution of the second vertex becomes even more important as the couplings take more improved values provided by the higher luminosities of colliders. In addition to these improvements if the CM energy of the collider is increased, the production will be dominated by the anomaluos tqZt-q-Z vertex

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This paper was published in CERN Document Server.

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