Hierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds

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dc.creatorCvetic, Mirjam
dc.creatorWeigand, Timo
dc.date2007-11-02
dc.date2008-08-14
dc.date.accessioned2026-07-07T11:38:30Z
dc.date.available2026-07-07T11:38:30Z
dc.descriptionWe construct the first globally consistent semi-realistic Type I string vacua on an elliptically fibered manifold where the zero modes of the Euclidean D1-instanton sector allow for the generation of non-perturbative 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.
dc.description4 pages, 4 tables, uses revtex; v2: Discussion of instanton curves improved, typos fixed, references added; v3: version published in PRL
dc.identifierhttps://arxiv.org/abs/0711.0209
dc.identifierhttp://arxiv.org/abs/0711.0209
dc.identifierPhys.Rev.Lett.100:251601,2008
dc.identifierdoi:10.1103/PhysRevLett.100.251601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199586
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHierarchies from D-brane instantons in globally defined Calabi-Yau Orientifolds
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