Abstract
We present the full next-to-leading-order electroweak and QCD corrections to vector-boson scattering into a pair of off-shell opposite-sign W bosons decaying into leptons of different flavour at the LHC. We include full leading-order predictions for the irreducible background. Explicitly, we investigate the process pp → e+νeμ−\( \overline{\nu} \)μjj + X at leading orders \( \mathcal{O} \)(α6), \( \mathcal{O} \)(αsα5), \( \mathcal{O} \)(\( {\alpha}_{\mathrm{s}}^2 \)α4), supplemented by the loop-induced \( \mathcal{O} \)(\( {\alpha}_{\mathrm{s}}^4 \)α4) contribution, and at next-to-leading orders \( \mathcal{O} \)(α7)and \( \mathcal{O} \)(αsα6) in two setups providing fiducial cross sections as well as differential distributions. We take full account of photon-induced next-to-leading-order contributions, which prove to be non negligible. With −11.4% and −6.7% in the two setups, the electroweak corrections are smaller than for other vector-boson-scattering processes. This can be traced back to the presence of the Higgs-boson resonance in the fiducial phase space, whose effects we analyse within an additional unphysical, but manifestly gauge-invariant setup. The QCD corrections amount to −5.1% and −21.6% in the two setups. The large size of the latter correction, compared to other vector-boson scattering processes, is explained by a very restrictive definition of its fiducial phase space.
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Denner, A., Franken, R., Schmidt, T. et al. NLO QCD and EW corrections to vector-boson scattering into W+W− at the LHC. J. High Energ. Phys. 2022, 98 (2022). https://doi.org/10.1007/JHEP06(2022)098
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DOI: https://doi.org/10.1007/JHEP06(2022)098