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arXiv · 1509.02077

Spin Polarisation of $t\bar{t}γγ$ production at NLO+PS with GoSam interfaced to MadGraph5_aMC@NLO

Hans van Deurzen·Rikkert Frederix·Valentin Hirschi·Gionata Luisoni·Pierpaolo Mastrolia·Giovanni Ossola
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Abstract

We present an interface between the multipurpose NLO Monte Carlo tool MadGraph5_aMC@NLO and the automated one-loop amplitude generator GoSam. As a first application of this novel framework, we compute the NLO corrections to $pp \to t\bar{t}H$ and $pp \to t\bar{t}γγ$ matched 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.

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Hans van Deurzen, Rikkert Frederix, Valentin Hirschi, Gionata Luisoni, Pierpaolo Mastrolia, Giovanni Ossola. 2017-07-18. Spin Polarisation of $t\bar{t}γγ$ production at NLO+PS with GoSam interfaced to MadGraph5_aMC@NLO. https://doi.org/10.1140/epjc%2Fs10052-016-4048-2

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