Hierarchies from D-brane instantons in globally defined Calabi-Yau orientifolds
We construct the first globally consistent semirealistic type I string vacua on an elliptically fibered manifold where the zero modes of the Euclidean D1-instanton sector allow for the generation of nonperturbative Majorana masses of an intermediate scale. In another class of global models, a D1-bra...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
24 June 2008
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| In: |
Physical review letters
Year: 2008, Jahrgang: 100, Heft: 25 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.100.251601 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.100.251601 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.100.251601 
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| Verfasserangaben: | Mirjam Cvetič and Timo Weigand |
| Zusammenfassung: | We construct the first globally consistent semirealistic type I string vacua on an elliptically fibered manifold where the zero modes of the Euclidean D1-instanton sector allow for the generation of nonperturbative Majorana masses of an intermediate scale. In another class of global models, a D1-brane instanton can generate a Polonyi-type superpotential breaking supersymmetry at an exponentially suppressed scale. |
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| Beschreibung: | Gesehen am 09.01.2018 |
| Beschreibung: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.100.251601 |