On Anomaly-free Supergravity as an Effective String Theory

Details On Anomaly-free Supergravity as an Effective String Theory On Anomaly-free Supergravity as an Effective String Theory

1992-10-27

arxiv.org/abs/hep-th/9210139v1

Phys.Lett. B300 (1993) 61-65

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, Latex, CERN-TH.6686/92

Scientific paper

10.1016/0370-2693(93)90749-8

The equations of motion of anomaly-free supergravity are shown to fulfil (to all orders in $\alpha'$) a differential condition corresponding to the one relating the Weyl anomaly coefficients for a non-linear sigma model representing a (heterotic) string propagating in a non-trivial background. This supports the possibility that anomaly-free supergravity could provide the complete massless effective theory for the heterotic string.

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