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Top and Beauty synergies in SMEFT-fits at present and future colliders

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arxiv 2012.10456 v2 pith:5X4H47SY submitted 2020-12-18 hep-ph

Stefan Bi{ss}mann , Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger This is my paper · ORCID
classification hep-ph
keywords futurebeautycollidercombiningfitsgloballeptonrightarrow
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abstract

We perform global fits within Standard Model Effective Field Theory (SMEFT) combining top-quark pair production processes and decay with $b\rightarrow s$ flavor changing neutral current transitions and $Z \to b \bar b$ in three stages: using existing data from the LHC and $B$-factories, using projections for the HL-LHC and Belle II, and studying the additional new physics impact from a future lepton collider. The latter is ideally suited to directly probe $\ell^+\ell^-\rightarrow t\bar t$ transitions. We observe powerful synergies in combining both top and beauty observables as flat directions are removed and more operators can be probed. We find that a future lepton collider significantly enhances this interplay and qualitatively improves global SMEFT fits.

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Cited by 4 Pith papers

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

  1. Agentic Re-Casting using Agentic Re-Simulations

    hep-ph 2026-07 conditional novelty 6.0 of 10

    An agentic AI system with a physicist in the loop re-casts an ATLAS ttZ measurement into a global top-quark SMEFT fit and recovers injected coloron Wilson coefficients in a repeatable benchmark.

  2. 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.

  3. Accuracy complements energy: electroweak precision tests at Tera-Z

    hep-ph 2024-12 conditional novelty 5.0 of 10

    Z-pole precision at a Tera-Z factory gives projected sensitivities to Higgs and gauge SMEFT operators that are competitive with, and complementary to, higher-energy runs such as WW and ZH.

  4. 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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