Fast Electroweak Symmetry Breaking and Cold Electroweak Baryogenesis

Details Fast Electroweak Symmetry Breaking and Cold Electroweak Baryogenesis Fast Electroweak Symmetry Breaking and Cold Electroweak Baryogenesis

2010-05-05

arxiv.org/abs/1005.0752v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

13 pages, 5 figures. Section and extra checks added, conclusions unchanged. Published version

Scientific paper

We construct a model for delayed electroweak symmetry breaking that takes place in a cold Universe with T<<100 GeV and which proceeds by a fast quench rather than by a conventional, slow, phase transition. This is achieved by coupling the Standard Model Higgs to an additional scalar field. We show that the quench transition can be made fast enough for successful Cold Electroweak Baryogenesis, while leaving known electroweak physics unchanged.

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