Surveying the scope of the SU(2) L scalar septet sector

  • C. Alvarado
  • L. Lehman
  • B. OstdiekEmail author
Open Access


Extending the Standard Model by adding a scalar field transforming as a septet under SU(2) L preserves the ρ parameter at tree level and can satisfy experimental constraints on the electroweak parameters S and T. This work presents the first fully general phenomenological study of such an extension. We examine constraints on the septet model couplings based on electroweak and Higgs observables, and use LHC searches for new physics to bound the mass of the septet to be above ~ 400 GeV at a 95% CL.


Higgs Physics Beyond Standard Model 


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) 2014

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of Notre DameNotre DameUnited States

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