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We present an interface between the multipurpose Monte Carlo toolMadGraph5_aMC@NLOand the automated amplitude generator GoSam. As a first application of this novel framework, we compute the NLO corrections topp→t ̄tHandpp→t ̄tγγmatched to a parton shower. In the phenomenological analyses of these processes, we focus our attention on observables which are sensitive to the polarisation of the top quarks.


This article was originally published in the European Physical Journal C, available at DOI 10.1140/epjc/s10052-016-4048-2.

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (



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