SUSY breaking and moduli stabilization from fluxes in gauged 6D supergravity

We construct the 4D N = 1 supergravity which describes the low-energy limit of 6D supergravity compactified on a sphere with a monopole background à la Salam and Sezgin. This provides a simple setting sharing the main properties of realistic string compactifications such as flat 4D spacetime, chiral fermions and N = 1 supersymmetry as well as Fayet-Iliopoulos terms induced by the Green-Schwarz mechanism. The matter content of the resulting …