The Effective Action of N=8 Supergravity

Details The Effective Action of N=8 Supergravity The Effective Action of N=8 Supergravity

2007-11-14

arxiv.org/abs/0711.2108v1

Physics

High Energy Physics

High Energy Physics - Theory

17 pages

Scientific paper

We present a simple form of the on-shell gauge-invariant 1-loop effective action of N=8 supergravity which is manifestly N=8 supersymmetric at the linear level. By generalizing the dimensional arguments in superspace to non-local invariants, we show that the 1-loop effective action does not contain any contributions from bubble and triangle diagrams. The absence of bubbles implies the absence of conformal and axial anomalies. We also show that the 1-loop effective action of N=8 supergravity features a "dual" conformal symmetry in the momentum space.

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