Now showing items 1-3 of 3

• #### D-brane Deconstructions in IIB Orientifolds ﻿

(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 ﻿

(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 ﻿

(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. ...