The supersymmetric Georgi-Machacek model

  • Roberto Vega
  • Roberto Vega-Morales
  • Keping Xie
Open Access
Regular Article - Theoretical Physics


We show that the well known Georgi-Machacek (GM) model can be realized as a limit of the recently constructed Supersymmetric Custodial Higgs Triplet Model (SCTM) which in general contains a significantly more complex scalar spectrum. We dub this limit of the SCTM, which gives a weakly coupled origin for the GM model at the electroweak scale, the Supersymmetric GM (SGM) model. We derive a mapping between the SGM and GM models using it to show how a supersymmetric origin implies constraints on the Higgs potential in conventional GM model constructions which would generically not be present. We then perform a simplified phenomenological study of diphoton and ZZ signals for a pair of benchmark scenarios to illustrate under what circumstances the GM model can mimic the SGM model and when they should be easily distinguishable.


Supersymmetry Phenomenology 


Open Access

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  • Roberto Vega
    • 1
  • Roberto Vega-Morales
    • 2
  • Keping Xie
    • 1
  1. 1.Department of PhysicsSouthern Methodist UniversityDallasU.S.A.
  2. 2.Departamento de Física Teórica y del CosmosUniversidad de GranadaGranadaSpain

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