Brane-induced supersymmetry breaking

Abstract

We study spontaneous supersymmetry breaking induced by brane-localized dynamics in five-dimensional supergravity compactified on S^1/Z_2. We consider a model with gravity in the bulk and matter localized on tensionless branes at the orbifold fixed points. We assume that the brane dynamics give rise to effective brane superpotentials that trigger the supersymmetry breaking. We analyze in detail the super-Higgs effect. We compute the full spectrum and show that the symmetry breaking is spontaneous but nonlocal in the fifth dimension. We demonstrate that the model can be interpreted as a new, non-trivial implementation of a coordinate-dependent Scherk-Schwarz compactification.

15 pages. v2: improved treatment of brane actions, relation with conventional Scherk-Schwarz mechanism clarified, version to be published in JHEP

References in corpus (6)

• Supersymmetric theories with compact extra dimensions in N=1 superfields
• Finite Radiative Electroweak Symmetry Breaking from the Bulk
• Viable Ultraviolet-Insensitive Supersymmetry Breaking
• Generalized symmetry breaking on orbifolds
• Supersymmetric Radion in the Randall-Sundrum Scenario
• Four-Dimensional Supergravities from Five-Dimensional Brane Worlds

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