On gauged maximal d = 8 supergravities

Abstract:

We study the gauging of maximal d = 8 supergravity using the embedding tensor formalism. We focus on SO(3) gaugings, study all the possible choices of gauge fields and construct explicitly the bosonic actions (including the complicated Chern-Simons terms) for all these choices, which are parametrized by a parameter associated to the 8-dimensional SL duality group that relates all the possible choices which are, ultimately, equivalent from the purely 8-dimensional point of view. Our result proves that the theory constructed by Salam and Sezgin by Scherk-Schwarz compactification of d = 11 supergravity and the theory constructed in Alonso-Alberca (2001 Nucl. Phys. B 602 329) by dimensional reduction of the so called 'massive 11-dimensional supergravity' proposed by Meessen and Ortin in (1999 Nucl. Phys. B 541 195) are indeed related by an SL duality even though they have two completely different 11-dimensional origins.

Año de publicación:

2018

Keywords:

• Supergravity
• duality
• embedding tensor
• gauged supergravity

Fuente:

scopus