Seminar Ivonne Zavala

Speaker: 
Ivonne Zavala
Affiliation: 
Bonn University
Title: 
Moduli fixing and de Sitter Vacua in MSSM Heterotic Orbifolds
Abstract: 

I will discuss moduli stabilisation in explicit heterotic orbifold compactifications, which contain the MSSM spectrum. The 4D low energy effective action has contributions from various, computable, perturbative and non-perturbative effects. Hidden sector gaugino condensation and string worldsheet instantons result in a combination of racetrack and cusp-form contributions to the superpotential, which lift all the bulk moduli directions. I will present interesting de Sitter vacua and discuss their general properties.

Location: 
0511.0135
Date: 
Wednesday, June 8, 2011 - 12:30 - 13:30