Hadroproduction of t anti-t pair with a b anti-b pair with PowHel

Abstract

We simulate the hadroproduction of a top-antitop pair in association with a bottom-antibottom pair at 14 TeV LHC using the PowHel package. We use the generated events, stored according to the Les-Houches event format, to make predictions for differential distributions formally at the next-to-leading order (NLO) accuracy and we compare these to existing predictions accurate at NLO.

Comments: 11 pages, 8 figures, bug fixed in analysis code resulting in change in conclusion, version published in Journal of Physics G