  We present for the first time the full automation of collider predictions
matched with parton showers at the next-to-leading accuracy in QCD within
non-trivial extensions of the Standard Model. The sole inputs required from the
user are the model Lagrangian and the process of interest. As an application of
the above, we explore scenarios beyond the Standard Model where new colored
scalar particles can be pair produced in hadron collisions. Using simplified
models to describe the new field interactions with the Standard Model, we
present precision predictions for the LHC within the MadGraph5 aMC@NLO
framework.
