Volume 79, Number 5, September 2007
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||02 August 2007|
Phase structure and phase transitions of the symmetric scalar field theory
Department of Atomic Physics, Eötvös University - H-1117 Budapest, Hungary
2 Research Group for Statistical and Biological Physics of the Hungarian Academy of Sciences H-1117 Budapest, Hungary
3 Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences H-1525 Budapest, Hungary
Accepted: 9 July 2007
Radiatively induced symmetry breaking is shown to be a genuine feature of globally symmetric renormalisable field theories in the large-N limit, describing interaction of a complex doublet, -singlet field with an singlet, vector. Symmetry-breaking solutions are found even when all fields have positive renormalised squared mass. The emerging novel mechanism of symmetry breaking can reproduce with a choice of the standard range of the electroweak condensate and the Higgs mass occurring in the extended Higgs dynamics of an symmetric Gauge+Higgs model.
PACS: 11.10.Wx – Finite-temperature field theory / 11.10.Gh – Renormalization / 12.38.Cy – Summation of perturbation theory
© Europhysics Letters Association, 2007
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