Multilepton production via top flavour-changing neutral couplings at the CERN LHC

摘要

Zt and gamma t production with Z -> l+ l- and t -> Wb -> l nu b provides thebest determination of top flavour-changing neutral couplings at the LHC. Thebounds on tc couplings eventually derived from these processes are similar tothose expected from top decays, while the limits on tu couplings are better bya factor of two. The other significant Z and W decay modes are alsoinvestigated.