Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-02-01
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, no figure. Typos corrected. References added. Version accepted for publication.
Scientific paper
A very large extra dimension may contain many localized branes. We discuss the possibility to formulate such models as a spin system where each spin indicates the supersymmetry direction preserved by the corresponding brane. In the evolution of the universe, the extra dimensions might have ended into a vacuum made of patches with different orientation of the spins, responsible for the observed breaking of supersymmetry. We discuss the limit where the separation of these patches is by very thin defects described as localization of gravitino masses.
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