SU(5) grand unification on a domain-wall brane from an E_6-invariant action

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dc.creatorDavidson, Aharon
dc.creatorGeorge, Damien P.
dc.creatorKobakhidze, Archil
dc.creatorVolkas, Raymond R.
dc.creatorWali, Kameshwar C.
dc.date2007-10-18
dc.date2008-03-26
dc.date.accessioned2026-07-07T11:38:12Z
dc.date.available2026-07-07T11:38:12Z
dc.descriptionAn SU(5) grand unification scheme for effective 3+1-dimensional fields dynamically localised on a domain-wall brane is constructed. This is achieved through the confluence of the clash-of-symmetries mechanism for symmetry breaking through domain-wall formation, and the Dvali-Shifman gauge-boson localisation idea. It requires an E_6 gauge-invariant action, yielding a domain-wall solution that has E_6 broken to differently embedded SO(10) x U(1) subgroups in the two bulk regions on opposite sides of the wall. On the wall itself, the unbroken symmetry is the intersection of the two bulk subgroups, and contains SU(5). A 4+1-dimensional fermion family in the 27 of E_6 gives rise to localised left-handed zero-modes in the 5^* + 10 + 1 + 1 representation of SU(5). The remaining ten fermion components of the 27 are delocalised exotic states, not appearing in the effective 3+1-dimensional theory on the domain-wall brane. The scheme is compatible with the type-2 Randall-Sundrum mechanism for graviton localisation; the single extra dimension is infinite.
dc.description21 pages, 9 figures. Minor changes to text and references. To appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0710.3432
dc.identifierhttp://arxiv.org/abs/0710.3432
dc.identifierPhys.Rev.D77:085031,2008
dc.identifierdoi:10.1103/PhysRevD.77.085031
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199476
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleSU(5) grand unification on a domain-wall brane from an E_6-invariant action
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