The Effective Action of N=8 Supergravity
Abstract
We present a simple form of the onshell gaugeinvariant 1loop effective action of N=8 supergravity which is manifestly N=8 supersymmetric at the linear level. By generalizing the dimensional arguments in superspace to nonlocal invariants, we show that the 1loop 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 1loop effective action of N=8 supergravity features a "dual" conformal symmetry in the momentum space.
 Publication:

arXiv eprints
 Pub Date:
 November 2007
 arXiv:
 arXiv:0711.2108
 Bibcode:
 2007arXiv0711.2108K
 Keywords:

 High Energy Physics  Theory
 EPrint:
 17 pages