Special embedding of the composite axion and QCD gauge groups into a larger product gauge group reduces the domain wall number to unity and induces a controlled bias term from UV instantons that destabilizes the walls.
Yamatsu,Finite-Dimensional Lie Algebras and Their Representations for Unified Model Building,1511.08771
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A 6D SO(20) gauge theory with one spinorial fermion unifies three SM generations and the Higgs after compactification to 5D.
A 6D SO(16) GUT model unifies SM gauge groups with SU(3) family symmetry by placing three chiral generations into one spinor representation, canceling anomalies via vectorlike 6D fermions and fixed-point localized states while noting asymptotic freedom of the SO(16) coupling.
A pedagogical review that reproduces step-by-step calculations of beta-function coefficients for RGEs from known formulae in the literature.
citing papers explorer
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Specially Embedding a Composite Axion Model
Special embedding of the composite axion and QCD gauge groups into a larger product gauge group reduces the domain wall number to unity and induces a controlled bias term from UV instantons that destabilizes the walls.
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Family Unification in a Six Dimensional Theory with an Orthogonal Gauge Group
A 6D SO(20) gauge theory with one spinorial fermion unifies three SM generations and the Higgs after compactification to 5D.
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Family Unification in $SO(16)$ Grand Unification
A 6D SO(16) GUT model unifies SM gauge groups with SU(3) family symmetry by placing three chiral generations into one spinor representation, canceling anomalies via vectorlike 6D fermions and fixed-point localized states while noting asymptotic freedom of the SO(16) coupling.
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Calculating $\beta$-function coefficients of Renormalization Group Equations
A pedagogical review that reproduces step-by-step calculations of beta-function coefficients for RGEs from known formulae in the literature.