Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons

Abstract

We compute the contribution of order ${\alpha }_S^2{\alpha }^2$ to the cross section of a top-antitop pair in association with at least one heavy Standard Model boson -- $Z$, $W^{\pm }$, and Higgs -- by including all effects of QCD, QED, and weak origin and by working in the automated MadGraph5_aMC@NLO framework. This next-to-leading order contribution is then combined with that of order ${\alpha }_S^3\alpha$, and with the two dominant lowest-order ones, ${\alpha }_S^2\alpha$ and ${\alpha }_S{\alpha }^2$, to obtain phenomenological results relevant to a 8, 13, and 100~TeV $pp$ collider.

27 pages, 8 figures

References in corpus (13)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Jet substructure as a new Higgs search channel at the LHC
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• Jet substructure as a new Higgs search channel at the LHC
• Automation of next-to-leading order computations in QCD: the FKS subtraction
• t tbar W and t tbar Z Hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects
• QCD NLO and EW NLO corrections to $t\bar{t}H$ production with top quark decays at hadron collider
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Next-to-leading order QCD corrections to t-tbar-Z production at the LHC
• Weak corrections to Higgs hadroproduction in association with a top-quark pair
• Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method
• Search for $H\to \gamma \gamma$ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector
• Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at sqrt(s) = 8 TeV

Cited by in corpus (9)

• Resummation of soft and Coulomb corrections for $t\bar{t}h$ production at the LHC
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Soft gluon resummation at fixed invariant mass for associated $t\bar{t}H$ production at the LHC
• State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections
• Higgs-boson production in top-quark fragmentation
• Top-quark pair production at NNLO QCD and NLO EW accuracy
• NLO QCD + electroweak predictions for off-shell ttH production at the LHC
• Recola2: a one-loop matrix-element generator for BSM theories and SM effective field theory
• Top and Electroweak bosons and Higgs