Supergravity loop contributions to brane world supersymmetry breaking
I. L. Buchbinder, S. James Gates, Hock-Seng Goh, W. D. Linch, Markus A. Luty, Siew-Phang Ng, J. Phillips
Abstract
We compute the supergravity loop contributions to the visible sector scalar masses in the simplest 5D `brane-world' model. Supersymmetry is assumed to be broken away from the visible brane and the contributions are UV finite due to 5D locality. We perform the calculation with N = 1 supergraphs, using a formulation of 5D supergravity in terms of N = 1 superfields. We compute contributions to the 4D effective action that determine the visible scalar masses, and we find that the mass-squared terms are negative.
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