Journal of High Energy Physics

, 2015:120 | Cite as

Interpretation of vector-like quark searches: heavy gluons in composite Higgs models

  • Juan Pedro Araque
  • Nuno Filipe Castro
  • José Santiago
Open Access
Regular Article - Theoretical Physics


Pair production of new vector-like quarks in pp collisions is considered model independent as it is usually dominated by QCD production. We discuss the interpretation of vector-like quark searches in the case that QCD is not the only relevant production mechanism for the new quarks. In particular we consider the effect of a new massive color octet vector boson with sizeable decay branching ratio into the new quarks. We pay special attention to the sensitivity of the Large Hadron Collider experiments, both in run-1 and early run-2, to differences in the kinematical distributions from the different production mechanisms. We have found that even though there can be significant differences in some kinematical distributions at the parton level, the differences are washed out at the reconstruction level. Thus, the published experimental results can be reinterpreted in models with heavy gluons by simply rescaling the production cross section.


Beyond Standard Model Technicolor and Composite Models 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Juan Pedro Araque
    • 1
  • Nuno Filipe Castro
    • 1
    • 2
  • José Santiago
    • 3
  1. 1.LIP, Departamento de Física, Escola de CiênciasUniversidade do MinhoBragaPortugal
  2. 2.Departamento de Física e Astronomia, Faculdade de CiênciasUniversidade do PortoPortoPortugal
  3. 3.CAFPE and Departamento de Física Teórica y del CosmosUniversidad de GranadaGranadaSpain

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