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

doi:10.1088/1367-2630/4/1/301

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

High Energy Physics - Theory 2008-11-26 v1

Authors: 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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@article{arxiv.hep-th/0111046,
  title  = {On the Stability of the Classical Vacua in a Minimal SU(5) 5-D Supergravity Model},
  author = {G. A. Diamandis and B. C. Georgalas and P. Kouroumalou and A. B. Lahanas},
  journal= {arXiv preprint arXiv:hep-th/0111046},
  year   = {2008}
}

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24 pages, 2 figures

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

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