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Higgs Decays to $ZZ$ and $Z\gamma$ in the SMEFT: an NLO analysis

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arxiv 1801.01136 v4 pith:KBS4MIIJ submitted 2018-01-03 hep-ph

Sally Dawson , Pier Paolo Giardino This is my paper · ORCID
classification hep-ph
keywords rightarrowsmeftcorrectionscalculationcompletecontributionsdecaysfinite
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We calculate the complete one-loop electroweak corrections to the inclusive $H\rightarrow ZZ$ and $H\rightarrow Z\gamma$ decays in the dimension-$6$ extension of the Standard Model Effective Field Theory (SMEFT). The corrections to $H\rightarrow ZZ$ are computed for on-shell $Z$ bosons and are a precursor to the physical $H\rightarrow Z f {\overline{f}}$ calculation. We present compact numerical formulas for our results and demonstrate that the logarithmic contributions that result from the renormalization group evolution of the SMEFT coefficients are larger than the finite NLO contributions to the decay widths. As a by-product of our calculation, we obtain the first complete result for the finite corrections to $G_\mu$ in the SMEFT.

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

    hep-ph 2019-09 conditional novelty 7.0 of 10

    The complete NLO electroweak and QCD corrections to Z and W pole observables in the SMEFT shift fitted Wilson coefficient bounds by 5 to 10 percent and introduce 22 new operator dependencies.

  2. Precision tests of third-generation four-quark operators: $gg \to h$ and $h \to \gamma \gamma$

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Two-loop SMEFT corrections from third-generation four-quark operators to gg to h and h to gamma gamma are computed with full mass dependence, including new two-loop anomalous dimensions.

  3. NLO SMEFT Electroweak Corrections to Higgs Decays to 4 Leptons in the Narrow Width Approximation

    hep-ph 2024-11 conditional novelty 5.0 of 10

    A complete NLO SMEFT electroweak prediction for H to 4 leptons via narrow width approximation, with new operator effects and correlations relevant to LHC fits.

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