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arXiv · hep-ph/0211385

Dynamical Electroweak Symmetry Breaking by a Neutrino Condensate

Stefan Antusch·Joern Kersten·Manfred Lindner·Michael Ratz
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Abstract

We show that the electroweak symmetry can be broken in a natural and phenomenologically acceptable way by a neutrino condensate. Therefore, we assume as particle content only the chiral fermions and gauge bosons of the Standard Model and in addition right-handed neutrinos. A fundamental Higgs field is absent. We assume instead that new interactions exist that can effectively be described as four-fermion interactions and that can become critical in the neutrino sector. We discuss in detail the coupled Dirac-Majorana gap equations which lead to a neutrino condensate, electroweak symmetry breaking and via the dynamical see-saw mechanism to small neutrino masses. We show that the effective Lagrangian is that of the Standard Model with massive neutrinos and with a composite Higgs particle. The mass predictions are consistent with data.

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Stefan Antusch, Joern Kersten, Manfred Lindner, Michael Ratz. 2003-04-22. Dynamical Electroweak Symmetry Breaking by a Neutrino Condensate. https://doi.org/10.1016/s0550-3213(03)00188-3

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