NLO QCD predictions for off-shell $t\bar{t}W$ production in association with a light jet at the LHC

Abstract

In view of the persisting tension between theoretical predictions and the LHC data for the $pp\to t\bar{t}{W}^{\pm }$ production process, we present the state-of-the-art full off-shell NLO QCD result for $pp\to t\bar{t}{W}^{+}j+X$. We concentrate on the multi-lepton decay channel at the LHC with $\sqrt{s}=13$ TeV. In our calculation off-shell top quarks and gauge bosons are described by Breit-Wigner propagators, furthermore, double-, single- as well as non-resonant top-quark contributions along with all interference effects are consistently incorporated at the matrix element level. We present results for both integrated and differential fiducial cross sections for various renormalisation and factorisation scale settings and different PDF sets. With a fairly inclusive choice of cuts and regardless of the scale and PDF choice, non-flat differential $\mathcal{K}$-factors are obtained for many observables that we have examined. Since from an experimental point of view, both processes $pp\to t\bar{t}{W}^{\pm }j+X$ and $pp\to t\bar{t}{W}^{\pm }+X$ consist of similar final states we investigate the effect of additional jet activity on the integrated and differential fiducial cross sections. For this purpose, the normalised differential distributions for $pp\to e^{+}{\nu }_e{\mu }^{-}{\bar{\nu }}_{\mu }{\tau }^{+}{\nu }_{\tau }b\bar{b}j+X$ and $pp\to e^{+}{\nu }_e{\mu }^{-}{\bar{\nu }}_{\mu }{\tau }^{+}{\nu }_{\tau }b\bar{b}+X$ are compared. The theoretical results for the latter process are also recalculated.

arXiv comment33 pages, 13 figures, 10 tables, a few typos corrected after proofreading, version to appear in JHEP

References in corpus (81)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• LHAPDF6: parton density access in the LHC precision era
• A General Algorithm for Calculating Jet Cross Sections in NLO QCD
• Parton distributions from high-precision collider data
• New parton distribution functions from a global analysis of quantum chromodynamics
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
• The Dipole Formalism for Next-to-Leading Order QCD Calculations with Massive Partons
• ROOT - A C++ Framework for Petabyte Data Storage, Statistical Analysis and Visualization
• CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes
• Parton distributions from LHC, HERA, Tevatron and fixed target data: MSHT20 PDFs
• A standard format for Les Houches Event Files
• Electroweak corrections to charged-current e+e- --> 4 fermion processes - technical details and further results
• Automation of one-loop QCD corrections
• N-Jettiness: An Inclusive Event Shape to Veto Jets
• Predictions for all processes e^+e^- -> 4 fermions + gamma
• OneLOop: for the evaluation of one-loop scalar functions
• Bosonic Supersymmetry? Getting Fooled at the LHC
• MINLO: Multi-scale improved NLO
• Assault on the NLO Wishlist: pp -> tt bb
• A First Top Partner Hunter's Guide
• t \bar{t} W production and decay at NLO
• Helac-nlo
• Automated one-loop calculations: a proof of concept
• Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order
• Higgs Production with a Central Jet Veto at NNLL+NNLO
• Signals for Minimal Supergravity at the CERN Large Hadron Collider II: Multilepton Channels
• HELAC: a package to compute electroweak helicity amplitudes
• Observable contributions of new exotic quarks to quark mixing
• Helac-Phegas: a generator for all parton level processes
• The PDF4LHC21 combination of global PDF fits for the LHC Run III
• t tbar W and t tbar Z Hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects
• Axigluon as Possible Explanation for $p\bar{p}\to t\bar{t}$ Forward-Backward Asymmetry
• Large NLO corrections in $t\bar{t}{W}^{\pm }$ and $t\bar{t}t\bar{t}$ hadroproduction from supposedly subleading EW contributions
• Polarizing the Dipoles
• NLO QCD corrections to off-shell top-antitop production with leptonic decays at hadron colliders
• Discovering the top partners at the LHC using same-sign dilepton final states
• NLL+NNLO predictions for jet-veto efficiencies in Higgs-boson and Drell-Yan production
• Factorization and NNLL Resummation for Higgs Production with a Jet Veto
• Effective description of quark mixing
• Constraints on top couplings in models with exotic quarks
• Associated production of a top-quark pair with vector bosons at NLO in QCD: impact on $t\bar{t}H$ searches at the LHC
• Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections
• Constraining heavy colored resonances from top-antitop quark events
• Ntuples for NLO Events at Hadron Colliders
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Discovering Supersymmetry with Like-sign Dileptons
• Phenomenological signatures of additional scalar bosons at the LHC
• On the computation of multigluon amplitudes
• Strong tW Scattering at the LHC
• Associated production of a top quark pair with a heavy electroweak gauge boson at NLO+NNLL accuracy
• Top-quark charge asymmetry and polarization in $t\bar{t}{W}^{\pm }$ production at the LHC
• Associated top quark pair production with a heavy boson: differential cross sections at NLO+NNLL accuracy
• FeynGame
• Multi-jet Production in Hadron Collisions
• The Complex-Mass Scheme and Unitarity in perturbative Quantum Field Theory
• Off-shell Top Quarks with One Jet at the LHC: A comprehensive analysis at NLO QCD
• Complete Nagy-Soper subtraction for next-to-leading order calculations in QCD
• Matching the Nagy-Soper parton shower at next-to-leading order
• On improving NLO merging for $t\bar{t}W$ production
• Mixing with vector-like quarks: constraints and expectations
• Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC
• Single production of doubly charged Higgs bosons at hadron colliders
• Supersymmetric NLO QCD Corrections to Resonant Slepton Production and Signals at the Tevatron and the LHC
• The emergence of multi-lepton anomalies at the LHC and their compatibility with new physics at the EW scale
• Anatomy of inclusive $t\overline{t}W$ production at hadron colliders
• Top-quark pair production in association with a $W^{\pm }$ gauge boson in the POWHEG-BOX
• The simplest of them all: $t\bar{t}{W}^{\pm }$ at NLO accuracy in QCD
• Like-sign dilepton signature for gluino production at LHC including top quark and higgs boson effects
• Same-sign dileptons as a signature for heavy Majorana neutrinos in hadron-hadron collisions
• Associated production of a top pair and a W boson at next-to-next-to-leading logarithmic accuracy
• Production and decay of the Higgs boson in association with top quarks
• Jet Veto Resummation with Jet Rapidity Cuts
• $t\bar{t}b\bar{b}$ at the LHC: On the size of corrections and $b$-jet definitions
• Combined NLO EW and QCD corrections to off-shell $\text{t}\overline{\text{t}}\text{W}$ production at the LHC
• Modeling uncertainties of $t\bar{t}{W}^{\pm }$ multilepton signatures
• NLO QCD corrections to off-shell $\text{t}\bar{\text{t}}{\text{W}}^{+}$ production at the LHC
• Constraints on a 2HDM with a singlet scalar and implications in the search for heavy bosons at the LHC
• NLO QCD corrections to full off-shell production of $t\bar{t}Z$ including leptonic decays
• Jet-veto resummation at N${}^3$LL${}_{\text{p}}$+NNLO in boson production processes

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