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Total Drell-Yan in the flavorful SMEFT

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arxiv 2502.12250 v2 pith:AGCB4WCR submitted 2025-02-17 hep-ph

classification hep-ph
keywords limitscouplingsdatadrell-yanflavorglobalreachsmeft
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We perform a global analysis of Drell-Yan production of charged leptons and dineutrinos, the latter in missing energy plus jet events, in proton-proton collisions within the Standard Model Effective Field Theory (SMEFT). The combination allows for the removal of flat directions, sharper limits and to probe more couplings than the individual observables, which we show performing a fit to LHC-data. We also find that limits have only mild dependence on lepton flavor patterns; hierarchies in quark flavors are driven by the parton distribution functions. The strongest constraints are on couplings involving the first and second generation quarks, exceeding 10 TeV. Combining flavor and high-$p_T$ data, the limits on electroweak and gluon dipole operators can be improved, by up to a factor of three, highlighting once more that a more global approach increases sensitivities significantly. We also estimate the improvements in reach over existing data for the high-luminosity LHC (HL-LHC) by $\sim 1.5$, and future collider options such as the high-energy LHC (HE-LHC) by $\sim 3$ and FCC-hh by $\sim 8$. To maximize the new physics reach kinematic cuts and binning needs to be adjusted to each quark-flavor separately.

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Cited by 2 Pith papers

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

  1. Counting b-jets at the FCC-ee as a probe of top-quark flavor physics

    hep-ph 2026-07 accept novelty 5.5 of 10

    FCC-ee at 240 GeV can probe Λ_eff ∼ 7–13 TeV for scalar, vector and tensor eetu/eetc operators by counting b_P-odd single-b-jet multi-jet events.

  2. Flavor physics at the EIC with b-jet tagging

    hep-ph 2026-01 conditional novelty 5.0 of 10

    Single b-jet counting in charged-current events at the EIC could probe new flavor-changing physics up to Λ_eff ≈ 5 TeV, about 30 times the collider energy, assuming tight b-tagging and polarized beams.

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