Constraining dimension-6 SMEFT with higher-order predictions for $pp\to tW$

Abstract

We study single-top production in association with a $W$ boson at the Large Hadron Collider (LHC) as a probe of dimension-6 Standard Model effective field theory (SMEFT) at leading order, next-to-leading order, and approximate next-to-next-to-leading order accuracy in quantum chromodynamics (QCD). The process is sensitive to operators that modify the top-quark weak and chromomagnetic dipole interactions, and we perform three-parameter linear and quadratic SMEFT fits using doubly differential top-quark distributions in transverse momentum and rapidity for the Run II and Run III configurations at the LHC. We provide a detailed account of the uncertainties and quantify the impact of the different uncertainty components across bins and perturbative orders. We find that effective scales up to 2 TeV can be probed in nonmarginalized fits, while in marginalized fits the corresponding scales are around 0.5 and 1.5 TeV for linear and quadratic fits, respectively.

46 pages, 29 figures

References in corpus (43)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• LHAPDF6: parton density access in the LHC precision era
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Single-top hadroproduction in association with a W boson
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• NNLL resummation for s-channel single top quark production
• Single top quark production at the Tevatron: threshold resummation and finite-order soft gluon corrections
• A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Luminosity determination in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector at the LHC
• Compilation of low-energy constraints on 4-fermion operators in the SMEFT
• FeynCalc 10: Do multiloop integrals dream of computer codes?
• Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV
• High-pT Signatures in Vector-Leptoquark Models
• Higher-order soft gluon corrections in single top quark production at the LHC
• Higher-order corrections for $tW$ production at high-energy hadron colliders
• Measurement of differential $\text{t}\overline{\text{t}}$ production cross sections in the full kinematic range using lepton+jets events from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• SMEFT analysis of vector boson scattering and diboson data from the LHC Run II
• Role of dimension-eight operators in an EFT for the 2HDM
• Inclusive and differential cross-sections for dilepton $t\bar{t}$ production measured in $\sqrt{s}=13$TeV $pp$ collisions with the ATLAS detector
• Standard Model Effective Field Theory up to Mass Dimension 12
• Moments for positivity: using Drell-Yan data to test positivity bounds and reverse-engineer new physics
• Soft anomalous dimensions for single-top production at three loops
• Measurement of the ratio of the production cross sections times branching fractions of Bc+/- to J/psi pi+/- and B+/- to J/psi K+/- and B(Bc+/- to J/psi pi+/- pi+/- pi-/+)/B(Bc+/- to J/psi pi+/-) in pp collisions at sqrt(s) = 7 TeV
• Precision Electroweak Analysis after the Higgs Boson Discovery
• SmeftFR v3 -- Feynman rules generator for the Standard Model Effective Field Theory
• The physics potential of a reactor neutrino experiment with Skipper-CCDs: Searching for new physics with light mediators
• Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Measurement of the Z+b-jet cross-section in pp collisions at $\sqrt{s}=7\mathrm{Te}\mathrm{V}$ in the forward region
• Analytic two-loop master integrals for $tW$ production at hadron colliders: I
• Momentum-space threshold resummation in $tW$ production at the LHC
• Observation of tW production in the single-lepton channel in pp collisions at $\sqrt{s}$ = 13 TeV
• On partition functions and phases of scalars in AdS
• One-loop squared amplitudes for hadronic $tW$ production at next-to-next-to-leading order in QCD
• Analytic two-loop amplitudes for $tW$ production: leading color and light fermion-loop contributions
• A Renormalizable Supersymmetric SU(5) Model
• Measurement of inclusive and differential cross sections for single top quark production in association with a W boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• SMEFT chromomagnetic dipole operator contributions to $t\bar{t}$ production at approximate NNLO in QCD
• Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of inclusive and differential cross sections of single top quark production in association with a W boson in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
• Resummation for $s$-channel single-top production
• Next-to-next-to-leading order threshold soft function for $tW$ production