期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2009/03/135
关键词
Supergravity Models; Space-Time Symmetries; Global Symmetries
资金
- Studienstiftung des deutschen Volkes
- Albert-Einstein-Institut, Potsdam
- International Solvay Institute
- Brussels and of the Universite Libre de Bruxelles
The hidden on-shell E-7(7) symmetry of maximal supergravity is usually discussed in a truncation from D = 11 to four dimensions. In this article, we reverse the logic and start from a theory with manifest off-shell E-7(7) symmetry inspired by West's coset construction. Following de Wit's and Nicolai's idea that a 4+56 dimensional exceptional geometry underlies maximal supergravity, we construct the corresponding Lagrangian and the supersymmetry variations for the 56 dimensional subsector. We prove that both the dynamics and the supersymmetry coincide with D = 11 supergravity in a truncation to d = 7 in the expected way.
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