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High Energy Physics - Phenomenology

arXiv:2409.06396 (hep-ph)
[Submitted on 10 Sep 2024]

Title:Polarized $W^+W^-$ pairs at the LHC: Effects from bottom-quark induced processes at NLO QCD+EW

Authors:Thi Nhung Dao, Duc Ninh Le
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Abstract:We investigate the effects of the bottom-quark induced processes on the doubly polarized cross sections of $W^+W^-$ pair production at the LHC. The method to extract the on-shell single-top contribution is provided. Results for phenomenological and experimental analyses are given at next-to-leading order (NLO) QCD+EW accuracy, with the leading contribution from the gluon-gluon and photon-photon fusion included. We found that the contribution of the bottom-quark induced processes, after the subtraction of the on-shell $tW$ channel, is largest for the doubly longitudinal polarization, being at the level of $9\%$ and $13\%$ (compared to the NLO value of the light-quark contribution, for integrated cross section) for two cut setups, with and without a jet veto, respectively. A bound of the $tW$ interference is calculated for various kinematic distributions, showing that this interference effect is, in general, smaller for the no jet veto case.
Comments: 22 pages, 8 figures, 4 tables
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:2409.06396 [hep-ph]
  (or arXiv:2409.06396v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2409.06396

Submission history

From: Duc Ninh Le [view email]
[v1] Tue, 10 Sep 2024 10:23:21 UTC (439 KB)
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