Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections
Alessandro BroggioINFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126, Milano, ItalyAndrea FerrogliaPhysics Department, New York City College of Technology, The City University of New York, 300 Jay Street, Brooklyn, NY, 11201, U.S.ARikkert FrederixTheoretical Particle Physics, Department of Astronomy and Theoretical Physics, Lund University, Sölvegatan 14A, SE-223 62, Lund, SwedenDavide PaganiTechnische Universität München, James-Franck-Str. 1, D-85748, Garching, GermanyBenjamin D. PecjakInstitute for Particle Physics Phenomenology, Ogden Centre for Fundamental Physics, Department of Physics, University of Durham, Science Laboratories, South Rd, Durham, DH1 3LE, U.KIoannis TsinikosTechnische Universität München, James-Franck-Str. 1, D-85748, Garching, Germany
2019en
ABI
Abstract
A bstract 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 (α s α 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.
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Cited by 20 references