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Theoretical Physycs Group at Scuola Normale Superiore
Piazza dei Cavalieri, 7
56100 Pisa PI - Italy
ph. +39 050 509203
ph. +39 050 509111

Wilfried Buchmuller (DESY)

Six-dimensional supergravity and the hierarchy problem

We discuss an orbifold compactification of six-dimensional supergravity with magnetic flux, which breaks supersymmetry and generates a multiplicity of quark-lepton families. In a simplified toy model we find that the magnetic flux protects a scalar mass from large quantum corrections.