Dimensional Reduction over Coset Spaces and Supersymmetry Breaking
نویسنده
چکیده
We address the question of supersymmetry breaking of a higher dimensional supersymmetric theory due to coset space dimensional reduction. In particular we study a ten-dimensional supersymmetric E8 gauge theory which is reduced over all six-dimensional coset spaces. We find that the original supersymmetry is completely broken in the process of dimensional reduction when the coset spaces are symmetric. On the contrary softly broken four-dimensional supersymmetric theories result when the coset spaces are non-symmetric. From our analysis two promising cases are emerging which lead to interesting GUTs with three fermion families in four dimensions, one being non-supersymmetric and the other softly broken supersymmetric. e-mail address: [email protected]. Supported by ΓΓET grand 97EΛ/71. e-mail address: [email protected]. Partially supported by EU under the RTN contract HPRN-CT-2000-00148 and the A.v.Humboldt Foundation.
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