Four-dimensional M-theory and supersymmetry breaking
نویسندگان
چکیده
We investigate compactifications of M -theory from 11 → 5 → 4 dimensions and discuss geometrical properties of 4-d moduli fields related to the structure of 5-d theory. We study supersymmetry breaking by compactification of the fifth dimension and find that an universal superpotential is generated for the axion-dilaton superfield S. The resulting theory has a vacuum with < S >= 1, zero cosmological constant and a gravitino mass depending on the fifth radius as m3/2 ∼ R 5 /MPl. We discuss phenomenological aspects of this scenario, mainly the string unification and the decompactification problem. CERN-TH/97-79 April 1997 e-mail addresses: [email protected] and [email protected]
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