Strong electroweak phase transitions without collider traces

Details Strong electroweak phase transitions without collider traces Strong electroweak phase transitions without collider traces

2009-04-02

arxiv.org/abs/0904.0353v2

JHEP 0907:086,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 6 figures, some comments and references added

Scientific paper

10.1088/1126-6708/2009/07/086

We discuss the question if the upcoming generation of collider and low-energy experiments can successfully probe the nature of the electroweak phase transition. In particular, we are interested in phase transitions strong enough for electroweak baryogenesis or even for a production of gravitational radiation observable by the Big Bang Observer. As an explicit example, we present an analysis in a singlet extension of the Standard Model. We focus on the region in parameter space where the model develops no significant deviation in its low energy phenomenology from the Standard Model. Nevertheless, this class of models can develop a very strong phase transition.

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