Anomaly Cancellation On Manifolds Of G_2 Holonomy

Details Anomaly Cancellation On Manifolds Of G_2 Holonomy Anomaly Cancellation On Manifolds Of G_2 Holonomy

2001-08-22

arxiv.org/abs/hep-th/0108165v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pp

Scientific paper

Smooth manifolds of G_2 holonomy, used to compactify M-theory to four dimensions, give only abelian gauge groups without charged matter multiplets. But singular G_2-manifolds can give abelian or nonabelian gauge groups with chiral fermions. We describe the mechanism of anomaly cancellation in these models, which depends upon anomaly inflow from the bulk. We also compare the anomaly predictions to what has been learned by more explicit arguments in some special cases.

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