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Probing top anomalous couplings at the LHC with trilepton signatures in the single top mode

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arxiv 1304.5551 v2 pith:FXQVE532 submitted 2013-04-19 hep-ph

Jean-Laurent Agram , Jeremy Andrea , Eric Conte , Benjamin Fuks , Denis Gelé , Pierre Lansonneur This is my paper · ORCID
classification hep-ph
keywords anomalouscouplingsquarkstrileptonfinalgluonsinteractionssingle
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We investigate trilepton final states to probe top anomalous couplings at the Large Hadron Collider. We focus on events originating from the associated production of a single top quark with a Z-boson, a channel sensitive to several flavor-changing neutral interactions of top and up/charm quarks. In particular, we explore a way to access simultaneously their anomalous couplings to Z-bosons and gluons and derive the discovery potential of trilepton final states to such interactions with 20 fb-1 of 8 TeV collisions. We show that effective coupling strengths of O(0.1-1) TeV-1 can be reached. Equivalently, branching fractions of top quarks into lighter quarks and gluons or Z-bosons can be constrained to be below O(0.1-1)%.

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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. Soft-gluon corrections for single top quark production in association with electroweak bosons

    hep-ph 2019-09 conditional novelty 3.0 of 10

    Soft-gluon resummation results for single top plus Z/photon production via anomalous FCNC couplings, showing large approximate NNLO K-factors, are presented for LHC energies.

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