I present a brief theoretical update on top quark pair production at the Tevatron and give values of the NNLO-NNNLL cross section for both m_t=175 and 178 GeV. I then present a calculation of the cross section for charged Higgs production in association with a top quark at the LHC, including NNLO soft-gluon corrections.
Kidonakis N. 2005. Top quark and charged higgs production at hadron colliders. AIP Conf.Proc. 792(hep-ph/0505271):643,646. 6 p.