NLO predictions for t-channel production of single top and fourth generation quarks at hadron colliders

作者:Campbell John M*; Frederix Rikkert; Maltoni Fabio; Tramontano Francesco
来源:The Journal of High Energy Physics, 2009, 2009(10): 042.
DOI:10.1088/1126-6708/2009/10/042

摘要

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 -> 2 and 2 -> 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.

  • 出版日期2009-10