New F-theory lifts II: Permutation orientifolds and enhanced singularities
Author:
Preprint
Abstract
In this paper, a procedure is developed to construct compact F-theory fourfolds corresponding to perturbative IIB O7/O3 models on CICY threefolds with permutation involutions. The method is explained in generality, and then applied to specific examples where the involution permutes two Del Pezzo surfaces. The fourfold construction is successfully tested by comparing the D3 charges predicted by F-theory and IIB string theory. The constructed smooth fourfolds are then taken to the locus in moduli space where they have enhanced SU(5) singularities. A general, intuitive method is developed for engineering the desired singularities in Weierstrass models for complicated D7-brane setups.Keywords
All Related Versions
This publication has 31 references indexed in Scilit:
- From local to global in F-theory model buildingJournal of Geometry and Physics, 2010
- A note on local GUT models in F-theoryNuclear Physics B, 2010
- Right-handed neutrinos in F-theory compactificationsNuclear Physics B, 2009
- GUTs in type IIB orientifold compactificationsNuclear Physics B, 2009
- GUT relations from string theory compactificationsNuclear Physics B, 2009
- D7-brane motion from M-theory cycles and obstructions in the weak coupling limitNuclear Physics B, 2008
- D-brane probes, RR tadpole cancellation and K-theory chargeNuclear Physics B, 2001
- Constraints on low-dimensional string compactificationsNuclear Physics B, 1996
- F-theory and orientifoldsNuclear Physics B, 1996
- Non-perturbative superpotentials in string theoryNuclear Physics B, 1996