Double-pole approximation for leading-order semi-leptonic vector-boson scattering at the LHC

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Autori principali: Denner, Ansgar, Lombardi, Daniele, Schwan, Christopher
Natura: Preprint
Pubblicazione: 2024
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author Denner, Ansgar
Lombardi, Daniele
Schwan, Christopher
author_facet Denner, Ansgar
Lombardi, Daniele
Schwan, Christopher
contents Measuring vector-boson scattering beyond the fully-leptonic final state is becoming possible at the LHC, which demands to have a solid control on the theory predictions for all final states of this class of processes. In this work we present a full off-shell leading-order calculation for the process $\mathrm{p}\mathrm{p} \to \ell ν_\ell + 4\mathrm{j}$ in two fiducial regions which are particularly relevant for its experimental measurement. In addition to the fully electroweak order, i.e. $\mathcal{O}(α^6)$, we complement our results with $\mathcal{O}(α_\mathrm{s}α^5)$ and $\mathcal{O}(α_\mathrm{s}^2α^4)$ for inclusive predictions. At $\mathcal{O}(α^6)$ we present for the first time a systematic treatment of the process in double-pole approximation and we perform a detailed study of its range of validity by considering inclusive and differential predictions compared to the full off-shell calculation.
format Preprint
id arxiv_https___arxiv_org_abs_2406_12301
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Double-pole approximation for leading-order semi-leptonic vector-boson scattering at the LHC
Denner, Ansgar
Lombardi, Daniele
Schwan, Christopher
High Energy Physics - Phenomenology
Measuring vector-boson scattering beyond the fully-leptonic final state is becoming possible at the LHC, which demands to have a solid control on the theory predictions for all final states of this class of processes. In this work we present a full off-shell leading-order calculation for the process $\mathrm{p}\mathrm{p} \to \ell ν_\ell + 4\mathrm{j}$ in two fiducial regions which are particularly relevant for its experimental measurement. In addition to the fully electroweak order, i.e. $\mathcal{O}(α^6)$, we complement our results with $\mathcal{O}(α_\mathrm{s}α^5)$ and $\mathcal{O}(α_\mathrm{s}^2α^4)$ for inclusive predictions. At $\mathcal{O}(α^6)$ we present for the first time a systematic treatment of the process in double-pole approximation and we perform a detailed study of its range of validity by considering inclusive and differential predictions compared to the full off-shell calculation.
title Double-pole approximation for leading-order semi-leptonic vector-boson scattering at the LHC
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2406.12301