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Probing heavy charged fermions at $e^+e^-$ collider using the Optimal Observable Technique

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arxiv 2106.02846 v2 pith:UIQOTZXZ submitted 2021-06-05 hep-ph

classification hep-ph
keywords heavyobservablecolliderconsiderfermionsoptimalproductiontechnique
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abstract

In this work we study the production of color-neutral and singly-charged heavy leptons at the proposed International Linear Collider. We use the optimal observable technique to determine the statistical accuracy to which the coupling of such fermions to the $Z$ gauge boson (vector, axial or chiral) can be measured. We also consider a UV-complete model that contains these particles as well as a dark matter candidate, and consider some observable effects involving both; the correspondence to chargino production in supersymmetric models with heavy sleptons is briefly discussed.

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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. Gravitational Wave Probe of Singlet-Doublet Dark Matter Induced Radiative Neutrino Mass

    hep-ph 2025-11 conditional novelty 5.0 of 10

    A radiative-seesaw model with singlet-doublet dark matter can satisfy neutrino, muon, flavor, relic, and direct-detection constraints while producing a first-order electroweak phase transition with gravitational waves...

  2. Impact of conversion-driven processes on singlet-doublet Majorana dark matter relic

    hep-ph 2025-11 conditional novelty 4.0 of 10

    For Majorana singlet-doublet dark matter, including conversion-driven processes enlarges the relic-density- and direct-detection-allowed mixing range to sinθ≈2×10^-7–0.16 for M_DM up to ~1750 GeV.

  3. Single production of singlet vector-like leptons at the ILC

    hep-ph 2024-12 conditional novelty 4.0 of 10

    Projected 5-sigma discovery regions for singlet vector-like leptons at the 1 TeV ILC are derived, covering masses 300-700 GeV and coupling kappa down to about 0.026.

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