One Loop Superstring Effective Actions and d = 4 Supergravity
Abstract
We review our recent work on the existence of a new independent R4 term, at one loop, in the type IIA and heterotic effective actions, after reduction to four dimensions, besides the usual square of the Bel-Robinson tensor. We discuss its supersymmetrization.
- Publication:
-
Geometry and Physics
- Pub Date:
- June 2008
- DOI:
- 10.1063/1.2958174
- arXiv:
- arXiv:0711.3228
- Bibcode:
- 2008AIPC.1023..192M
- Keywords:
-
- 04.65.+e;
- 11.25.Mj;
- 02.40.Ky;
- 02.10.Yn;
- Supergravity;
- Compactification and four-dimensional models;
- Riemannian geometries;
- Matrix theory;
- High Energy Physics - Theory
- E-Print:
- 1+7 pages. Work presented at the XVI International Fall Workshop on Geometry and Physics, Lisbon, Portugal, September 2007