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arXiv · 1502.01213

Wbbj production at NLO with POWHEG+MiNLO

Gionata Luisoni·Carlo Oleari·Francesco Tramontano
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Abstract

We present a next-to-leading order plus parton-shower event generator for the production of a W boson plus two bottom quarks and a jet at hadron colliders, implemented in the POWHEG BOX framework. Bottom-mass effects and spin correlations of the decay products of the W boson are fully taken into account. The code has been automatically generated using the two available interfaces to MadGraph4 and GoSam, the last one updated to a new version. We have applied the MiNLO prescription to our Wbbj calculation, obtaining a finite differential cross section also in the limit of vanishing jet transverse momentum. Furthermore, we have compared several key distributions for Wbbj production with those generated with a next-to-leading order plus parton-shower event generator for Wbb production, and studied their factorization- and renormalization-scale dependence. Finally, we have compared our results with recent experimental data from the ATLAS and CMS Collaborations.

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Gionata Luisoni, Carlo Oleari, Francesco Tramontano. 2015-04-28. Wbbj production at NLO with POWHEG+MiNLO. https://doi.org/10.1007/jhep04(2015)161

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