Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-05-08
Nucl.Phys.B792:166-186,2008
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, no figures, matches version in Nucl. Phys. B
Scientific paper
10.1016/j.nuclphysb.2007.09.024
We consider the gravitino spectrum for the general warped solution in a specific six-dimensional gauged supergravity. We find that although the brane tensions introduced at the conical singularities break the bulk supersymmetry explicitly, massless modes of gravitino can exist with a nontrivial wave function profile, due to a nonzero U(1)_R gauge flux. We also compute the wave function and the mass spectrum of Kaluza-Klein massive modes of the gravitino explicitly. We show that the introduction of a gravitino mass term on a regularized brane can give a suppressed effective gravitino mass compared to the compactification scale, due to the delocalization of the wave function of the zero-mode gravitino.
Lee Hyun Min
Papazoglou Antonios
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