Parton distributions in the SMEFT from high-energy Drell-Yan tails

Abstract

The high-energy tails of charged- and neutral-current Drell-Yan processes provide important constraints on the light quark and anti-quark parton distribution functions (PDFs) in the large-x region. At the same time, short-distance new physics effects such as those encoded by the Standard Model Effective Field Theory (SMEFT) would induce smooth distortions to the same high-energy Drell-Yan tails. In this work, we assess for the first time the interplay between PDFs and EFT effects for high-mass Drell-Yan processes at the LHC and quantify the impact that the consistent joint determination of PDFs and Wilson coefficients has on the bounds derived for the latter. We consider two well-motivated new physics scenarios: $1)$ electroweak oblique corrections $(\hat{W},\hat{Y})$ and $2)$ four-fermion interactions potentially related to the LHCb anomalies in $R(K^{(\ast )})$. We account for available Drell-Yan data, both from unfolded cross sections and from searches, and carry out dedicated projections for the High-Luminosity LHC. Our main finding is that, while the interplay between PDFs and EFT effects remains moderate for the current dataset, it will become a significant challenge for EFT analyses at the HL-LHC.

arXiv comment64 pages, 29 figures

References in corpus (99)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Parton distributions for the LHC Run II
• Dimension-Six Terms in the Standard Model Lagrangian
• Parton distributions from high-precision collider data
• The Strongly-Interacting Light Higgs
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
• Renormalization Group Evolution of the Standard Model Dimension Six Operators II: Yukawa Dependence
• Renormalization Group Evolution of the Standard Model Dimension Six Operators I: Formalism and lambda Dependence
• Electroweak symmetry breaking after LEP1 and LEP2
• The Standard Model as an Effective Field Theory
• Parton distributions from LHC, HERA, Tevatron and fixed target data: MSHT20 PDFs
• Combining QCD and electroweak corrections to dilepton production in FEWZ
• APFEL: A PDF Evolution Library with QED corrections
• Fully differential NNLO computations with MATRIX
• Confronting lepton flavor universality violation in B decays with high-$p_T$ tau lepton searches at LHC
• The automation of next-to-leading order electroweak calculations
• Heavy quarks in deep-inelastic scattering
• U(2) and Minimal Flavour Violation in Supersymmetry
• A posteriori inclusion of parton density functions in NLO QCD final-state calculations at hadron colliders: The APPLGRID Project
• The Effective Chiral Lagrangian for a Light Dynamical "Higgs Particle"
• The SMEFTsim package, theory and tools
• Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
• Strong Double Higgs Production at the LHC
• The Chiral Approach to the Electroweak Interactions
• Illuminating the photon content of the proton within a global PDF analysis
• General Minimal Flavor Violation
• The Structure of the Proton in the LHC Precision Era
• High-$p_T$ dilepton tails and flavour physics
• A Higgs-Higgs bound state due to New Physics at a TeV
• A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
• O new physics, where art thou? A global search in the top sector
• Energy helps accuracy: electroweak precision tests at hadron colliders
• The Drell-Yan cross section to third order in the strong coupling constant
• Right-handed charged currents in the era of the Large Hadron Collider
• A Geometric Formulation of Higgs Effective Field Theory: Measuring the Curvature of Scalar Field Space
• Non-standard Charged Current Interactions: beta decays versus the LHC
• The Mono-Tau Menace: From $B$ Decays to High-$p_T$ Tails
• Parton Distribution Benchmarking with LHC Data
• HEPData: a repository for high energy physics data
• Fitting Parton Distribution Data with Multiplicative Normalization Uncertainties
• Anomalous Triple Gauge Couplings in the Effective Field Theory Approach at the LHC
• SMEFTsim 3.0 -- a practical guide
• Precision phenomenology with MCFM
• Is SMEFT Enough?
• Global constraints on anomalous triple gauge couplings in effective field theory approach
• With or without U(2)? Probing non-standard flavor and helicity structures in semileptonic B decays
• The Leptoquark Hunter's Guide: Large Coupling
• Diboson Interference Resurrection
• Hadronic tau decays as New Physics probes in the LHC era
• Charged Current Drell-Yan Production at N3LO
• Global Effective-Field-Theory analysis of New-Physics effects in (semi)leptonic kaon decays
• An NLO QCD effective field theory analysis of $W_{}^{+}{W}_{}^{-}$ production at the LHC including fermionic operators
• Can New Physics hide inside the proton?
• Novel angular dependence in Drell-Yan lepton production via dimension-8 operators
• Pinning down the large-x gluon with NNLO top-quark pair differential distributions
• Flavour symmetries in the SMEFT
• Hunting leptoquarks in monolepton searches
• Charm Physics Confronts High-$p_T$ Lepton Tails
• Global Constraints on Lepton-Quark Contact Interactions
• Precision NNLO determination of alpha_s(M_Z) using an unbiased global parton set
• APFELgrid: a high performance tool for parton density determinations
• Effective theories of universal theories
• Towards Ultimate Parton Distributions at the High-Luminosity LHC
• Catching a New Force by the Tail
• Parton distributions with threshold resummation
• Precision determination of the strong coupling constant within a global PDF analysis
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Top and Beauty synergies in SMEFT-fits at present and future colliders
• Global and optimal probes for the top-quark effective field theory at future lepton colliders
• Fitting Higgs Data with Nonlinear Effective Theory
• Lepton Flavor Violation and Dilepton Tails at the LHC
• NLO QCD corrections to SM-EFT dilepton and electroweak Higgs boson production, matched to parton shower in POWHEG
• Validity of SMEFT studies of VH and VV Production at NLO
• Anticipating Non-Resonant New Physics in Dilepton Angular Spectra at the LHC
• Diboson at the LHC vs LEP
• STrEAMlining EFT Matching
• SMEFT analysis of vector boson scattering and diboson data from the LHC Run II
• The Flavor of UV Physics
• The Strangest Proton?
• SuperTracer: A Calculator of Functional Supertraces for One-Loop EFT Matching
• Precision Probes of QCD at High Energies
• The $\hat{H}$-Parameter: An Oblique Higgs View
• Sigma Decomposition
• Bottom-Flavored Mono-Tau Tails at the LHC
• Phenomenology of NNLO jet production at the LHC and its impact on parton distributions
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Constraining anomalous gluon self-interactions at the LHC: a reappraisal
• Indirect and monojet constraints on scalar leptoquarks
• Giving top quark effective operators a boost
• Precision determination of alpha_s using an unbiased global NLO parton set
• Searching for New Physics with $b\bar{b}{\ell }^{+}{\ell }^{-}$ Contact Interactions
• Consistent Searches for SMEFT Effects in Non-Resonant Dijet Events
• Constraining the SMEFT with Bayesian reweighting
• LHC dijet angular distributions as a probe for the dimension-six triple gluon vertex
• SM EFT effects in Vector-Boson Scattering at the LHC
• New Physics from High Energy Tops

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