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Search: authors:"Marco Zaro"

3 papers found.
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Top-pair production at the LHC through NNLO QCD and NLO EW

Abstract In this work we present for the first time predictions for top-quark pair differential distributions at the LHC at NNLO QCD accuracy and including EW corrections. For the latter we include not only contributions of \( \mathcal{O}\left({\alpha}_s^2\alpha \right) \), but also those of order \( \mathcal{O}\left({\alpha}_s{\alpha}^2\right) \) and \( \mathcal{O}\left({\alpha...

Large NLO corrections in $$ t\overline{t}{W}^{\pm } $$ and tt¯tt¯$$ t\overline{t}t\overline{t} $$ hadroproduction from supposedly subleading EW contributions

Abstract We calculate the complete-NLO predictions for \( t\overline{t}{W}^{\pm } \) and \( t\overline{t}t\overline{t} \) production in proton-proton collisions at 13 and 100 TeV. All the non-vanishing contributions of \( \mathcal{O}\left({\alpha}_s^i{\alpha}^j\right) \) with i + j = 3, 4 for \( t\overline{t}{W}^{\pm } \) and i + j = 4, 5 for \( t\overline{t}t\overline{t} \) are...

Lepton-pair production in association with a \( b\overline{b} \) pair and the determination of the W boson mass

Abstract We perform a study of lepton-pair production in association with bottom quarks at the LHC based on the predictions obtained at next-to-leading order in QCD, both at fixed order and matched with a QCD parton shower. We consider a comprehensive set of observables and estimate the associated theoretical uncertainties by studying the dependence on the perturbative QCD scales...