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High Energy Physics - Phenomenology

arXiv:2109.14336 (hep-ph)
[Submitted on 29 Sep 2021 (v1), last revised 17 Feb 2022 (this version, v3)]

Title:Polarised W+j production at the LHC: a study at NNLO QCD accuracy

Authors:Mathieu Pellen, Rene Poncelet, Andrei Popescu
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Abstract:We study polarisation of W-bosons produced in association with one jet at the LHC. In particular, we provide all necessary theoretical ingredients for the precise extraction of polarisation fractions. To that end, we present new polarised predictions up to NNLO QCD accuracy employing the narrow-width approximation, in two phase spaces: inclusive and fiducial. We compare results in the fiducial phase space to a full off-shell computation as well as experimental data. Finally, we fit the polarisation fractions using shape templates and show that NNLO corrections significantly improve their determination.
Comments: corrected typos, applied referee's comments, i.e reviewed the discussion of fits to data, etc; matches JHEP published version
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Report number: CAVENDISH-HEP-21/13, FR-PHENO-2021-11
Cite as: arXiv:2109.14336 [hep-ph]
  (or arXiv:2109.14336v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2109.14336
Related DOI: https://doi.org/10.1007/JHEP02%282022%29160

Submission history

From: Andrei Popescu [view email]
[v1] Wed, 29 Sep 2021 10:42:02 UTC (6,147 KB)
[v2] Fri, 8 Oct 2021 12:00:23 UTC (6,148 KB)
[v3] Thu, 17 Feb 2022 15:20:18 UTC (6,604 KB)
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