On Moduli Stabilisation and dS Vacua in MSSM Heterotic Orbifolds

by Susha Parameswaran (Uppsala University)

Monday 11 Oct 2010, 13:30 → 14:30 Europe/Stockholm

CoPS group room (A5:1041)

Heterotic orbifold compactifications have long been studied as a starting point for string phenomenology. Explicit models containing the exact MSSM spectrum have now been built, and we can begin to study their dynamical properties. I will present recent work on moduli stabilization and dS vacua in concrete MSSM-like models. After introducing the framework, I will show how to compute the low energy 4D effective theory, which describes the compactifications. I will then describe its implications for moduli stabilization, considering all the bulk moduli. We find dS vacua, but so far they are all unstable.