Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-11-06
NewJ.Phys.4:1,2002
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, 2 figures
Scientific paper
10.1088/1367-2630/4/1/301
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.
Diamandis G. A.
Georgalas B. C.
Kouroumalou P.
Lahanas A. B.
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