Paper
NLO predictions for t-channel production of single top and fourth generation quarks at hadron colliders
Authors
John M. Campbell, Rikkert Frederix, Fabio Maltoni, Francesco Tramontano
Abstract
We present updated NLO predictions for the electroweak t-channel production of heavy quarks at the Tevatron and at the LHC. We consider production of single top and fourth generation t' starting from both 2 to 2 and 2 to 3 Born processes. Predictions for tb' and t'b' cross sections at NLO are also given for the first time. A thorough study of the theoretical uncertainties coming from parton distribution functions, renormalisation and factorisation scale dependence and heavy quark masses is performed.