Now showing items 1-3 of 3

    • D-brane Deconstructions in IIB Orientifolds 

      Collinucci, Andres; Denef, Frederik; Esole, Mboyo (Institute of Physics, 2009)
      With model building applications in mind, we collect and develop basic techniques to analyze the landscape of D7-branes in type IIB compact Calabi-Yau orientifolds, in three different pictures: F-theory, the D7 worldvolume ...
    • F-theory and Neutrinos: Kaluza-Klein Dilution of Flavor Hierarchy 

      Bouchard, Vincent; Heckman, Jonathan; Seo, Jihye; Vafa, C. (Springer Verlag, 2010)
      We study minimal implementations of Majorana and Dirac neutrino scenarios in F-theory GUT models. In both cases the mass scale of the neutrinos \(m_{\nu} \sim M_{weak}^2/\land_{UV}\) arises from integrating out Kaluza-Klein ...
    • T-Branes and Monodromy 

      Cecotti, Sergio; Cordova, Clay Alexander; Heckman, Jonathan; Vafa, C. (Springer Verlag, 2011)
      We introduce T-branes, or "triangular branes," which are novel non-abelian bound states of branes characterized by the condition that on some loci, their matrix of normal deformations, or Higgs field, is upper triangular. ...