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Updated: Jul 2, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Spontaneous Hopf Fibration in the Two-Higgs-Doublet Model
1Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom.
Abstract:
We show that energetic considerations enforce a Hopf fibration of the standard model topology within the 2HDM whose potential has either an SO(3) or U(1) Higgs-family symmetry. This can lead to monopole and vortex solutions. We find these solutions, characterize their basic properties and demonstrate the nature of the fibration along with the connection to Nambu's monopole solution. We point out that breaking of the U(1)_{EM} in the core of the defect can be a feature which leads to a nonzero photon mass there.
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