Electroweak phase transition in ultraminimal technicolor
- University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)
- Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen O (Denmark)
We unveil the temperature-dependent electroweak phase transition in new extensions of the standard model in which the electroweak symmetry is spontaneously broken via strongly coupled, nearly conformal dynamics achieved by the means of multiple matter representations. In particular, we focus on the low energy effective theory introduced to describe ultra minimal walking technicolor at the phase transition. Using the one-loop effective potential with ring improvement, we identify regions of parameter space, which yield a strong first-order transition. A striking feature of the model is the existence of a second phase transition associated to the electroweak-singlet sector. The interplay between these two transitions leads to an extremely rich phase diagram.
- OSTI ID:
- 21308450
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 9; Other Information: DOI: 10.1103/PhysRevD.79.095008; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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