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Exploring the SMEFT at dimension-8 with Drell-Yan transverse momentum measurements

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arxiv 2207.01703 v1 pith:CRB4CI4F submitted 2022-07-04 hep-ph

Radja Boughezal , Yingsheng Huang , Frank Petriello This is my paper · ORCID
classification hep-ph
keywords smeftoperatorsdatadimension-8drell-yanfieldhl-lhcmeasurements
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We demonstrate that measurements of the neutral-current Drell-Yan transverse momentum distribution binned in invariant mass are sensitive to unexplored dimension-8 parameters of the Standard Model Effective Field Theory (SMEFT). These distributions are sensitive to four-fermion operators with additional QCD field strength tensors. The determination of the Wilson coefficients of these operators provides a useful diagnostic tool that distinguishes possible ultraviolet completions of the SMEFT. We study how well these effects can be probed by current LHC data, and explore the sensitivity of the future high-luminosity LHC (HL-LHC) to these operators. We find that the HL-LHC data has the potential to strongly probe this sector of 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. EFT Validity and Truncation Uncertainty from few Nuisance Parameters

    hep-ph 2026-07 accept novelty 7.0 of 10

    SMEFT truncation uncertainty at O(Λ^{-4}) can be modeled by K≪N representative Wilson coefficients plus a decorrelated α=√2 PCA prior that covers full next-order effects in DY, Zh, and VBF.

  2. On the EFT validity for Drell-Yan tails at the LHC

    hep-ph 2024-12 conditional novelty 6.0 of 10

    For t-channel mediators such as the U1 leptoquark, Drell-Yan EFT bounds are accurate at the 10% level for masses above about 1.5 TeV when the series is truncated at amplitude level, while s-channel mediators need E mu...

  3. A tale of $Z$+jet: SMEFT effects and the Lam-Tung relation

    hep-ph 2024-12 conditional novelty 5.0 of 10

    Light-quark dipole operators cannot explain the observed violation of the Lam-Tung relation once SLC/LEP and LHC data are used to bound the Wilson coefficients.

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