How to halve maximal supergravity
High Energy Physics - Theory
2011-06-15 v3
Abstract
We work out the truncation from maximal to half-maximal supergravity in four dimensions. In particular, we determine the explicit constraints on the embedding tensors of both theories. These tensors specify the complete theories, including gauge groups and scalar potentials. Firstly, we find the linear constraint on N=8 theories to allow for a truncation to N=4. Secondly, we determine the additional N=4 quadratic constraints following from N=8. Finally, we comment on a brane interpretation as tadpole conditions for the latter.
Keywords
Cite
@article{arxiv.1104.3587,
title = {How to halve maximal supergravity},
author = {Giuseppe Dibitetto and Adolfo Guarino and Diederik Roest},
journal= {arXiv preprint arXiv:1104.3587},
year = {2011}
}
Comments
15 pages, 1 figure. v3: minor clarifications, typos corrected - published version