Speaker
Jan Piclum
(University of Siegen)
Description
The total top-antitop production cross section at hadron colliders is
one of the key observables of the Standard Model. Comparisons of LHC
measurements with theoretical calculations are being used to determine
the top-quark mass and the strong coupling and are included in global
PDF fits. These applications are currently based on calculations at
the next-to-next-to-leading order (NNLO) in QCD supplemented by
soft-gluon resummation at the next-to-next-to-leading logarithmic
order. In this talk I will present recent developments in computing
the cross section beyond NNLO, which is necessary to keep up with the
ever increasing experimental accuracy.
Author
Jan Piclum
(University of Siegen)
