Split Supersymmetry in an Orbifold GUT

Details Split Supersymmetry in an Orbifold GUT Split Supersymmetry in an Orbifold GUT

2004-10-07

arxiv.org/abs/hep-ph/0410104v2

Phys.Rev. D72 (2005) 035002

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages; Major revision with new references

Scientific paper

10.1103/PhysRevD.72.035002

We propose a supersymmetric SU(5) orbifold GUT in 5 dimensions in which supersymmetry breaking at the boundaries give rise to split supersymmetry spectrum. The extra dimension is compactified on a $S^1/Z_2 \times Z_2^\prime$ orbifold having two fixed points. The standard model fermions are localized in the standard model brane, where supersymmetry is broken by the nonvanishing of the F-term of a superfield X at some intermediate scale. All scalar superpartners acquires mass at this stage. The standard model gauginos and higgsinos remain light, since their masses are protected by R-symmetry and induced only by loop contributions and contact interaction in our brane. Usual features of orbifold GUTs are preserved in this scenario and proton decay and neutrino mass problems are solved.

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