### Abstract

The construction is given for gauged N = 8 supergravity in five dimensions with gauge group SU(3,1). It is shown that this theory has an additional SU(2) global symmetry as well as a local composite USp(8) gauge symmetry. The scalar potential has a critical point which breaks the gauge symmetry down to SU(3)×U(1) and the supersymmetry down to N = 2, with the massless gravitinos transforming in a doublet of the global SU(2). The cosmological constant is zero, allowing compactification on a circle down to four dimensions. The relationship of this theory to IIB superstrings and to N = 2 Yang-Mills-Einstein supergravity theories is discussed.

Original language | English (US) |
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Pages (from-to) | 309-314 |

Number of pages | 6 |

Journal | Physics Letters B |

Volume | 164 |

Issue number | 4-6 |

DOIs | |

State | Published - Dec 12 1985 |

### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

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## Cite this

Günaydin, M., Romans, L. J., & Warner, N. P. (1985). IIB, or not IIB: That is the question.

*Physics Letters B*,*164*(4-6), 309-314. https://doi.org/10.1016/0370-2693(85)90332-6