Journal of High Energy Physics

, 2011:156 | Cite as

Searching for third-generation composite leptoquarks at the LHC

  • Ben Gripaios
  • Andreas Papaefstathiou
  • Kazuki Sakurai
  • Bryan Webber
Open Access


Fermion masses may arise via mixing of elementary fermions with composite fermions of a strong sector in scenarios of strongly-coupled electroweak symmetry breaking. The strong sector may contain leptoquark states with masses as light as several hundred GeV. In the present study we focus on the scalar modes of such leptoquarks since their bosonic couplings are determined completely and hence their production cross sections only depend on their masses. We study all the possible gauge-invariant non-derivative and single-derivative couplings of the scalar leptoquarks to the quarks and leptons, which turn out to be, predominantly, of the third generation. We examine their phenomenology and outline search strategies for their dominant decay modes at the LHC.


Beyond Standard Model Hadronic Colliders Technicolor and Composite Models 


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Copyright information

© The Author(s) 2011

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • Ben Gripaios
    • 1
  • Andreas Papaefstathiou
    • 2
  • Kazuki Sakurai
    • 2
    • 3
  • Bryan Webber
    • 2
  1. 1.CERN PH-THGeneva 23Switzerland
  2. 2.Cavendish LaboratoryUniversity of CambridgeCambridgeU.K.
  3. 3.Department of Applied Mathematics and Theoretical PhysicsUniversity of CambridgeCambridgeU.K.

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