Reducing heterotic M-theory to five dimensional supergravity on a manifold with boundary

Details Reducing heterotic M-theory to five dimensional supergravity on a manifold with boundary Reducing heterotic M-theory to five dimensional supergravity on a manifold with boundary

2011-08-27

arxiv.org/abs/1108.5456v1

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, RevTeX

Scientific paper

This paper constructs the reduction of heterotic $M$-theory in eleven dimensions to a supergravity model on a manifold with boundary in five dimensions using a Calabi-Yau three-fold. New results are presented for the boundary terms in the action and for the boundary conditions on the bulk fields. Some general features of dualisation on a manifold with boundary are used to explain the origin of some topological terms in the action. The effect of gaugino condensation on the fermion boundary conditions leads to a `twist' in the chirality of the gravitino which can provide an uplifting mechanism in the vacuum energy to cancel the cosmological constant after moduli stabilisation.

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