Saracco, Fabio
*Patching up II A singularities.*
PhD Thesis thesis, Università degli Studi di Milano-Bicocca.
(2013)

## Abstract

In the context of supergravity, the Romans mass is a scalar flux which has been shown to have peculiar properties as avoiding uplifting to M-theory; moreover, in several models it has been used in order to fix moduli. We show that the singularity in SuperGravity due to the O6 plane, that for a vanishing Romas mass is resolved in M-theory, is canceled by the presence of the Romans mass. The result has been obtained using the Generalized Complex Geometry formalism in SuperGravity. The same phenomenon is shown from the gauge theory point of view: the metric near the O6 in the massless case is the moduli space of the Seiberg-Witten model reduced to 3 dimensions. The deformation induced by the Romans mass is introduced by a Chern-Simons term in the Lagrangian.

Item Type: | Thesis (PhD Thesis) |
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Uncontrolled Keywords: | Romans, mass, Supergravity, Generalized Complex Geometry, Seiberg-Witten, Chern-Simons, gauge theory, flux compactification, vacua configuration, string theory |

Subjects: | Q Science > QC Physics |

Research Area: | Economics and Institutional Change |

Depositing User: | Caterina Tangheroni |

Date Deposited: | 16 Nov 2015 15:52 |

Last Modified: | 16 Nov 2015 15:52 |

URI: | http://eprints.imtlucca.it/id/eprint/2906 |

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