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arXiv · 0711.1414

On the radion mediation of the Supersymmetry breaking in N=2, D=5 Supergravity Orbifolds

G. A. Diamandis·B. C. Georgalas·P. Kouroumalou·A. B. Lahanas
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Abstract

We discuss the on-shell N=1 Supersymmetric coupling of brane chiral multiplets in the context of N=2, D=5 Supergravity compactified on $S_1/Z_2$ orbifolds. Assuming a constant superpotential on the hidden brane we study the transmission of the supersymmetry breaking to the visible brane. We find that to lowest order in the five dimensional Newton's constant $k_5^2$ and gravitino mass $m_{3/2}^2$ the spinor field of the radion multiplet is responsible of inducing positive one-loop squared masses $m_ϕ^2 \sim {m_{3/2}^2} / (M_{Planck}^2 R^2)$ to the scalar fields which are localized on the visible brane with $R$ the length scale of the fifth dimension. Considering a cubic superpotential on the visible brane we also find that non-vanishing soft trilinear scalar couplings $A$ are induced given by $A=3m_ϕ^2/m_{3/2}$.

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G. A. Diamandis, B. C. Georgalas, P. Kouroumalou, A. B. Lahanas. 2008-01-11. On the radion mediation of the Supersymmetry breaking in N=2, D=5 Supergravity Orbifolds. https://doi.org/10.1016/j.physletb.2007.12.037

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