Soft-gluon resummation results for single top plus Z/photon production via anomalous FCNC couplings, showing large approximate NNLO K-factors, are presented for LHC energies.
FCNC top quark production via anomalous tqV couplings beyond leading order
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abstract
We calculate flavor-changing neutral-current (FCNC) processes involving top-quark production via anomalous tqV couplings at the Tevatron and HERA colliders. We cover the FCNC processes p pbar -> t Z, p pbar -> t gamma, p pbar -> t t, and e p -> e t. We go beyond leading order and include the effects of soft-gluon corrections through next-to-next-to-leading order. We demonstrate the stabilisation of the cross section with respect to the variation of QCD scale, and we investigate the reach of the Tevatron and HERA colliders.
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Soft-gluon corrections for single top quark production in association with electroweak bosons
Soft-gluon resummation results for single top plus Z/photon production via anomalous FCNC couplings, showing large approximate NNLO K-factors, are presented for LHC energies.