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Publication: Spontaneous symmetry breaking in a two-doublet lattice Higgs model

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Title Spontaneous symmetry breaking in a two-doublet lattice Higgs model
Authors/Editors* Randy Lewis, R. M. Woloshyn
Where published* Physical Review D
How published* Journal
Year* 2010
Volume 82
Number 034513
Pages 11
Publisher American Physical Society
Keywords
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Abstract
An SU(2) lattice gauge theory with two doublets of complex scalar fields is considered. All continuous symmetries are identified and, using the nonperturbative methods of lattice field theory, the phase diagram is mapped out by direct numerical simulation. Two-doublet models contain phase transitions that separate qualitatively distinct regions of the parameter space. In some regions global symmetries are spontaneously broken. For some special choices of the model parameters, the symmetry-breaking order parameter is calculated. The pattern of symmetry breaking is verified further through observation of Goldstone bosons.
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