University of Hertfordshire

From the same journal

By the same authors

Exceptional generalised geometry for massive IIA and consistent reductions

Research output: Contribution to journalArticle

Documents

View graph of relations
Original languageEnglish
Article number74
Number of pages65
JournalJHEP
Volume2016
Issue8
Early online date10 Aug 2016
DOIs
Publication statusE-pub ahead of print - 10 Aug 2016

Abstract

We develop an exceptional generalised geometry formalism for massive type IIA supergravity. In particular, we construct a deformation of the generalised Lie derivative, which generates the type IIA gauge transformations as modified by the Romans mass. We apply this new framework to consistent Kaluza-Klein reductions preserving maximal supersymmetry. We find a generalised parallelisation of the exceptional tangent bundle on S^6, and from this reproduce the consistent truncation ansatz and embedding tensor leading to dyonically gauged ISO(7) supergravity in four dimensions. We also discuss closely related hyperboloid reductions, yielding a dyonic ISO(p,7-p) gauging. Finally, while for vanishing Romans mass we find a generalised parallelisation on S^d, d=4,3,2, leading to a maximally supersymmetric reduction with gauge group SO(d+1) (or larger), we provide evidence that an analogous reduction does not exist in the massive theory.

Notes

© The Author(s) 2016.

ID: 16189554