On the brane coupling of Unified orbifolds with gauge interactions in the bulk

Abstract

In the on-shell formulation of $D=5$, N=2 supergravity, compactified on $S^1/Z_2$, we extend the results of Mirabelli and Peskin describing the interaction of the bulk fields with matter which is assumed to be confined on the brane. The novel characteristics of this approach are : Propagation of both gravity and gauge fields in the bulk, which offers an alternative for a unified description of models in extra dimensions and use of the on-shell formulation avoiding the complexity of off-shell schemes which involve numerous auxiliary fields. We also allow for nontrivial superpotential interactions of the chiral matter fields. The method we employ uses the N{\" o}ther procedure and our findings are useful for building models advocating propagation of the gauge degrees of freedom in the bulk, in addition to gravity.

16 pages, no figures, Comments added. Final version to appear in Physics Letters B

References in corpus (5)

• SU(5) Grand Unification in Extra Dimensions and Proton Decay
• Split Multiplets, Coupling Unification and Extra Dimension
• A Warped Supersymmetric Standard Model
• Brane to brane gravity mediation of supersymmetry breaking
• Gravity-Mediated Supersymmetry Breaking in the Brane World

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• Options for Orbifold-GUT Model Building from Five-Dimensional Supergravity
• Six-dimensional origin of gravity mediated brane to brane supersymmetry breaking
• The soft supersymmetry breaking in D=5 supergravity compactified on S_1/Z_2 orbifolds
• Six-Dimensional Jordan Supergravity Models