SO(10) domain-wall brane models
arXiv:0908.4122 · doi:10.1103/PhysRevD.80.125016
Abstract
We construct domain-wall brane models based on the grand-unification group SO(10), generalising the SU(5) model of Davies, George and Volkas. Motivated by the Dvali-Shifman proposal for the dynamical localisation of gauge bosons, the SO(10) symmetry is spontaneously broken inside the wall. We present two scenarios: in the first, the unbroken subgroup inside the wall is SU(5) x U(1)X, and in the second it is the left-right symmetry group SU(3) x SU(2)L x SU(2)R x U(1)B-L. In both cases we demonstrate that the phenomenologically-correct fermion zero modes can be localised to the wall, and we briefly discuss how the symmetry-breaking dynamics may be extended to induce breaking to the standard model group with subsequent electroweak breaking. Dynamically localised gravity is realised through the type 2 Randall-Sundrum mechanism.
16 pages, 2 figures A new section has been added on page 12. 3 new paragraphs have been added to the end of section (IV B) 'Localising Fermions' and 1 new paragraph has been added to section (IV C)'Adding Warped Gravity'. A new reference has been added to the bibliography at position [29]. The paper has been accepted in to Phys. Rev. D
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- Solutions for Intersecting Domain Walls with Internal Structure in Six Dimensions from a Z_2 x Z_2-invariant Action
- Unified Dark Matter from a Simple Gauge Group on a Domain-Wall Brane
- SM gauge fields localized on non-Abelian vortices in 6 dimensions