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Electroweak and QCD Corrections to $Z$ and $W$ pole observables in the SMEFT

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arxiv 1909.02000 v4 pith:GS6SAAYH submitted 2019-09-04 hep-ph

classification hep-ph
keywords ordercorrectionselectroweaknext-to-leadingobservablespolesmeftassumptions
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We compute the next-to-leading order QCD and electroweak corrections to $Z$ and $W$ pole observables using the dimension-6 Standard Model effective field theory and present numerical results that can easily be included in global fitting programs. Limits on SMEFT coefficient functions are presented at leading order and at next-to-leading order under several assumptions.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. When Two Loops Matter: Electroweak Precision in the SMEFT

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    A modification to the top-Higgs Yukawa coupling in SMEFT induces a two-loop shift in the W mass through a large anomalous dimension, providing a new indirect probe via electroweak precision observables.

  2. An EWPD SMEFT likelihood for the LHC -- and how to improve it with measurements of W and Z boson properties

    hep-ph 2024-12 unverdicted novelty 6.0 of 10

    The work supplies a modular SMEFT likelihood for EWPD that includes NLO effects and five input schemes, then combines it with LHC measurements to tighten constraints on lepton-flavor universality and quark coupling as...

  3. The Higgs boson through the lens of electroweak precision data

    hep-ph 2026-07 accept novelty 5.0 of 10

    Updated Gfitter EW fit with new MW average yields SM-consistent indirect observables and, via kappa_V from oblique parameters plus LHC signal strengths, determines Gamma_H to ~10% precision under leading-log assumptions.

  4. Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark

    hep-ex 2026-04 accept novelty 5.0 of 10

    A simultaneous fit to multiple ATLAS datasets constrains 48 SMEFT Wilson coefficients and matches subsets to 2HDM and heavy-vector models, finding consistency with the Standard Model.

  5. The Spurion Massive EFT (SMEFT)

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    SMEFT contact terms are decomposed into spurion structures whose coefficients come from higher-order Higgs singlet combinations, with W/Z masses, mixing, and fermion couplings fully saturated by dimension-eight operators.

  6. Sensitivity to top-quark couplings in diboson production at lepton colliders

    hep-ph 2026-06 unverdicted novelty 4.0 of 10

    NLO EW corrections to WW production from SMEFT top operators yield competitive sensitivity at LEP3 and FCC-ee relative to ZH production and existing LEP/LHC bounds.

  7. Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark

    hep-ex 2026-04 conditional novelty 4.0 of 10

    Three nonlinear interacting dark energy models with a saturation ('sparseness') scale are constrained against late-time cosmological data, showing mild preference for nonzero sparseness but no decisive improvement over ΛCDM.

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