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A vector-like fourth generation with a discrete symmetry from Split-UED

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arxiv 1004.4635 v1 pith:6THSVEGN submitted 2010-04-26 hep-ph

Kyoungchul Kong , Seong Chan Park , Thomas G. Rizzo This is my paper · ORCID
classification hep-ph
keywords allowsdiscretefourthgenerationsplit-uedstatessymmetryvector-like
verification ladder T0 review T1 audit T2 compute T3 formal
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Split-UED allows for the possibility that the lowest lying KK excitations of the Standard Model fermions can be much lighter than the corresponding gauge or Higgs KK states. This can happen provided the fermion bulk masses are chosen to be large, in units of the inverse compactification radius, 1/R, and negative. In this setup, all of the other KK states would be effectively decoupled from low energy physics. Such a scenario would then lead to an apparent vector-like fourth generation with an associated discrete symmetry that allows us to accommodate a dark matter candidate. In this paper the rather unique phenomenology presented by this picture will be examined.

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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. Revisiting Universal Extra-Dimension Model with Gravity Mediated Decays

    hep-ph 2024-12 conditional novelty 5.0 of 10

    Existing LHC data exclude fat-brane mUED compactification scales below about 3 TeV, and ML-tagged searches at 500 fb^-1 could extend the reach to roughly 3.2 to 3.4 TeV.

  2. Searching for vector-like leptons decaying into an electron and missing transverse energy in e$^{+}$e$^{-}$ collisions with $\sqrt{s} = 240$ GeV at the FCC-ee

    hep-ex 2026-04 unverdicted novelty 4.0 of 10

    Monte Carlo projections for FCC-ee at 240 GeV set 95% CL exclusion limits on vector-like lepton mass and Yukawa coupling in a lepton-portal scalar dark-matter scenario if no signal appears.

  3. Prospects for probing neutral vector-like leptons via pair production at muon collider

    hep-ph 2026-06 unverdicted novelty 3.0 of 10

    Simulations indicate a 6 TeV muon collider with 4 ab^{-1} can reach >5σ significance for neutral doublet VLLs of 1.3-3 TeV mass using 4j2μ and 2ℓ2μ + missing energy channels under polarized beams.

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