Spontaneous symmetry breaking in a two-doublet lattice Higgs model
arXiv:1005.5420 · doi:10.1103/PhysRevD.82.034513
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.
24 pages, 13 figures, references added, published version
References in corpus (6)
- Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
- The phase structure of a chirally invariant lattice Higgs-Yukawa model - numerical simulations
- Lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model with overlap fermions
- Chiral Lattice Gauge Theories and The Strong Coupling Dynamics of a Yukawa-Higgs Model with Ginsparg-Wilson Fermions
- Vortices, Symmetry Breaking, and Temporary Confinement in SU(2) Gauge-Higgs Theory
- Effect of Multiple Higgs Fields on the Phase Structure of the SU(2)-Higgs Model