Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-02-27
Phys.Lett.B602:112-122,2004
Physics
High Energy Physics
High Energy Physics - Theory
16 pages, no figures, Comments added. Final version to appear in Physics Letters B
Scientific paper
10.1016/j.physletb.2004.09.069
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.
Diamandis G. A.
Georgalas B. C.
Kouroumalou P.
Lahanas A. B.
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