In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 6 ( 2022-06-17)
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 + ν e μ − $$ \overline{\nu} $$ ν ¯ μ jj + X at leading orders $$ \mathcal{O} $$ O ( α 6 ), $$ \mathcal{O} $$ O ( α s α 5 ), $$ \mathcal{O} $$ O ( $$ {\alpha}_{\mathrm{s}}^2 $$ α s 2 α 4 ), supplemented by the loop-induced $$ \mathcal{O} $$ O ( $$ {\alpha}_{\mathrm{s}}^4 $$ α s 4 α 4 ) contribution, and at next-to-leading orders $$ \mathcal{O} $$ O ( α 7 )and $$ \mathcal{O} $$ O ( α s α 6 ) 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.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP06(2022)098
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2027350-2
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