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Impact of dimension-eight SMEFT operators in the EWPO and Triple Gauge Couplings analysis in Universal SMEFT

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arxiv 2304.03305 v1 pith:6ED56FDU submitted 2023-04-06 hep-ph

Tyler Corbett , Jay Desai , O. J. P. Eboli , M. C. Gonzalez-Garcia , Matheus Martines , Peter Reimitz This is my paper · ORCID
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keywords gaugeoperatorssmefttripleanalysisbosoncouplingsdata
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abstract

We perform a complete study of the electroweak precision observables and electroweak gauge boson pair production in terms of the SMEFT up to ${\cal O}(1/\Lambda^4)$ under the assumption of universal, C and P conserving new physics. We show that the analysis of data from those two sectors allows us to obtain closed constraints in the relevant parameter space in this scenario. In particular we find that the Large Hadron Collider data can independently constrain the Wilson coefficients of the dimension-six and -eight operators directly contributing to the triple gauge boson vertices. Our results show that the impact of dimension-eight operators in the study of triple gauge couplings is small.

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Cited by 3 Pith papers

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

  1. Anomalous triple gauge couplings in the light of dimension-8 operators in $W^+W^-$

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Bosonic dimension-8 operators in γγ-initiated WW production dominate over qqbar and set the practical EFT validity scale, yielding validity-aware constraints on dimension-6 Wilson coefficients.

  2. Electroweak Scalar Effects Beyond Dimension-6 in SMEFT

    hep-ph 2025-01 conditional novelty 6.0 of 10

    One-loop dimension-eight SMEFT matching is derived for complex triplet and two-Higgs-doublet scalar extensions, and the dimension-eight terms are shown to matter for GigaZ electroweak precision projections.

  3. Fingerprinting New Physics with Effective Field Theories

    hep-ph 2025-01 conditional novelty 2.0 of 10

    A thesis compiling published SMEFT global fits, automated UV-model constraints, and ML-based unbinned observables, with projections for HL-LHC, FCC-ee, and CEPC.

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