  We propose a simple model of extra-dimensional radius stabilization in a
supersymmetric Randall-Sundrum model. In our model, we introduce only a bulk
hypermultiplet and source terms (tadpole terms) on each boundary branes. With
appropriate choice of model parameters, we find that the radius can be
stabilized by supersymmetric vacuum conditions. Since the radion mass can be
much larger than the gravitino mass and even the original supersymmetry
breaking scale, radius stability is ensured even in the presence of
supersymmetry breaking. We find a parameter region in which unwanted scalar
masses induced by quantum corrections through the bulk hypermultiplet and a
bulk gravity multiplet are suppressed and the anomaly mediation contribution
dominates.

High Energy Physics - Theory;High Energy Physics - Phenomenology