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

Authors

Alessandro Broggio, Università degli Studi di Milano-Bicocca
Andrea Ferroglia, CUNY Graduate CenterFollow
Rikkert Frederix, Lund University
Davide Pagani, Technische Universität München
Benjamin D. Pecjak, University of Durham
Ioannis Tsinikos, Technische Universität München

Document Type

Article

Publication Date

2019

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(αⁱ_sα^j+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.

Comments

This article was originally published in Journal of High Energy Physics, available at https://doi.org/10.1007/JHEP08(2019)039

This work is distributed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).