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Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections.

Broggio, Alessandro and Ferroglia, Andrea and Frederix, Rikkert and Pagani, Davide and Pecjak, Benjamin D. and Tsinikos, Ioannis (2019) 'Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections.', Journal of high energy physics., 2019 (8). 039.

Abstract

This work studies the associated production of a top-quark pair with a W, Z, or Higgs boson at the LHC. Predictions for the total cross sections as well as for several differential distributions of the massive particles in the final state are provided. These predictions, valid for the LHC operating at 13 TeV, include without any approximation all the NLO electroweak and QCD contributions of O (αsαj+1) with i + j = 2, 3. In addition, the predictions presented here improve upon the NLO QCD results by adding the effects of soft gluon emission corrections resummed to next-to-next-to-leading logarithmic accuracy. The residual dependence of the predictions on scale and PDF choices is analyzed.

Item Type:Article
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Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1007/JHEP08(2019)039
Publisher statement:This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:26 July 2019
Date deposited:20 August 2019
Date of first online publication:07 August 2019
Date first made open access:No date available

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