Vacuum alignment and lattice artifacts: Wilson fermions
arXiv:1401.0356 · doi:10.1103/PhysRevD.89.054501
Abstract
Confinement in asymptotically free gauge theories is accompanied by the spontaneous breaking of the global flavor symmetry. If a subgroup of the flavor symmetry group is coupled weakly to additional gauge fields, the vacuum state tends to align such that the gauged subgroup is unbroken. Independently, a lattice discretization of the continuum theory typically reduces the manifest flavor symmetry, and, in addition, can give rise to new lattice-artifact phases with spontaneously broken symmetries. Here, we study the interplay of these two phenomena for Wilson fermions, using chiral lagrangian techniques. We consider two examples: electromagnetic corrections to QCD, and a prototype composite-Higgs model.
Revtex, 18 pages. This replacement corrects a few minor errors in the published version
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Cited by in corpus (13)
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- Lattice tests of beyond Standard Model dynamics
- Fermion mass without symmetry breaking
- Top quark induced effective potential in a composite Higgs model
- Spectroscopy of SU(4) gauge theory with two flavors of sextet fermions
- Effective potential in ultraviolet completions for composite Higgs models
- Radiative contribution to the composite-Higgs potential in a two-representation lattice model
- Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory
- Helical spin texture of surface states in topological superconductors
- Phase diagram of non-degenerate twisted mass fermions
- Vacuum alignment and lattice artifacts: staggered fermions
- Impact of electromagnetism on phase structure for Wilson and twisted-mass fermions including isospin breaking
- Phase diagram of non-degenerate Wilson and twisted mass fermions