27 citations · 74 across the 5 of their papers we have counts for
5 papers · 1 filter
String-Like Lagrangians from a Generalized Geometry
Stephen Morris
This note will use Hitchin's generalized geometry and a model of axionic gravity developed by Warren Siegel in the mid-nineties to show that the construction of Lagrangians based o…
Non-perturbative vacua for M-theory on G2 manifolds
Beatriz de Carlos, Andre Lukas, Stephen Morris
We study moduli stabilization in the context of M-theory on compact manifolds with G2 holonomy, using superpotentials from flux and membrane instantons, and recent results for the…
Kahler Potential for M-theory on a G_2 Manifold
Andre Lukas, Stephen Morris
We compute the moduli Kahler potential for M-theory on a compact manifold of G_2 holonomy in a large radius approximation. Our method relies on an explicit G_2 structure with small…
Towards a Realistic Picture of CP Violation in Heterotic String Models
Oleg Lebedev, Stephen Morris
We find that dilaton dominated supersymmetry breaking and spontaneous CP violation can be achieved in heterotic string models with superpotentials singular at the fixed points of t…
CP Violation and Dilaton Stabilization in Heterotic String Models
S. Khalil, O. Lebedev, S. Morris
We study the possibility of spontaneous CP violation in string models with the dilaton field stabilized at a phenomenologically acceptable value. We consider three mechanisms to st…