We investigate codimension-one vacua arising from low energy effective actions inspired by string theory, with an eye to their consistency when localized sources are allowed in the equations of motion. We draw some inspiration from Sugimoto's USp(32) model, the simplest setting for brane supersymmetry breaking, and from the 0'B model, with their Dudas-Mourad solutions. Although the sources that one can thus identify do not have a clear role in string theory, this type of investigation is naturally suggested by the singularities that appear at the endpoints of internal intervals. We also discuss the introduction of sources in deformed D8-like solutions in type IIA, pointing out an analogy with one of the non-supersymmetric models. Finally, we show that an appropriate choice of frame can simplify computations in models with tadpole potentials.

On Codimension-one Vacua and String Theory

Raucci, Salvatore
2022

Abstract

We investigate codimension-one vacua arising from low energy effective actions inspired by string theory, with an eye to their consistency when localized sources are allowed in the equations of motion. We draw some inspiration from Sugimoto's USp(32) model, the simplest setting for brane supersymmetry breaking, and from the 0'B model, with their Dudas-Mourad solutions. Although the sources that one can thus identify do not have a clear role in string theory, this type of investigation is naturally suggested by the singularities that appear at the endpoints of internal intervals. We also discuss the introduction of sources in deformed D8-like solutions in type IIA, pointing out an analogy with one of the non-supersymmetric models. Finally, we show that an appropriate choice of frame can simplify computations in models with tadpole potentials.
2022
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
High Energy Physics - Theory; High Energy Physics - Theory; General Relativity and Quantum Cosmology; High Energy Physics - Phenomenology
   Supersymmetry Breaking with Fields, Strings and Branes. Cod. 2017CC72MK_001
   Ministero della pubblica istruzione, dell'università e della ricerca
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/143503
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