4 Result(s)
within
Sebastian Schwieger
Elementary Particles, Quantum Field Theory
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Article
Open AccessOn E 8 and F-theory GUTs
We study correlations between the massless field spectra of F-theory fibrations supporting an SU(5) gauge symmetry extended by Abelian symmetries and the spectra that arise from the group E ...
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Article
Open AccessT-branes and α ′ -corrections
We study α’-corrections in multiple D7-brane configurations with non-commuting profiles for their transverse position fields. We focus on T-brane systems, crucial in F-theory GUT model building. There α ...
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Article
Open AccessCompact T-branes
We analyse global aspects of 7-brane backgrounds with a non-commuting profile for their worldvolume scalars, also known as T-branes. In particular, we consider configurations with no poles and globally well-de...
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Article
Open AccessT-branes and defects
We study T-branes on compact Kähler surfaces, in the presence of fields localised at curves. If such fields are treated as defects, their vevs induce delta-function sources for the 7-brane background, possibly...
