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

We simulate the hadroproduction of a t t-bar pair in association with a b b-bar 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. (paper)