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On the Stability of the Classical Vacua in a Minimal SU(5) 5-D Supergravity Model

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

We consider a five-dimensional supergravity model with SU(5) gauge symmetry and the minimal field content. Studying the arising scalar potential we find that the gauging of the $U(1)_R$ symmetry of the five-dimensional supergravity causes instabilities. Lifting the instabilities the vacua are of Anti-de-Sitter type and SU(5) is broken along with supersymmetry. Keeping the $U(1)_R$ ungauged the potential has flat directions along which supersymmetry is unbroken.

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G. A. Diamandis, B. C. Georgalas, P. Kouroumalou, A. B. Lahanas. 2001-11-06. On the Stability of the Classical Vacua in a Minimal SU(5) 5-D Supergravity Model. https://doi.org/10.1088/1367-2630%2F4%2F1%2F301

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