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We propose a supersymmetric SU(5) orbifold GUT in 5 dimensions in whichsupersymmetry breaking at the boundaries give rise to split supersymmetryspectrum. 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 inthe standard model brane, where supersymmetry is broken by the nonvanishing ofthe F-term of a superfield X at some intermediate scale. All scalarsuperpartners acquires mass at this stage. The standard model gauginos andhiggsinos remain light, since their masses are protected by R-symmetry andinduced only by loop contributions and contact interaction in our brane. Usualfeatures of orbifold GUTs are preserved in this scenario and proton decay andneutrino mass problems are solved.Comment: 9 pages; Major revision with new reference

Split supersymmetry in an orbifold GUT