NLO merging in tt+jets

Abstract

In this talk the application of the recently introduced methods to merge NLO calculations of successive jet multiplicities to the production of top pairs in association with jets will be discussed, in particular a fresh look is taken at the top quark forward-backward asymmetries. Emphasis will be put on the achieved theoretical accuracy and the associated perturbative and non-perturbative error estimates.

Comments: 6 pages, 3 figures, proceedings contribution for EPS 2013, Stockholm, 17-24 July