Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-01-20
Physics
High Energy Physics
High Energy Physics - Theory
Prepared for the XIV Mexican School on Particles and Fields, Morelia, Mexico, Nov. 4-12, 2010; 9 pages, 3 figures. v2: minor c
Scientific paper
Heterotic orbifold compactifications yield a myriad of models that reproduce many properties of the supersymmetric extension of the standard model and provide potential solutions to persisting problems of high energy physics, such as the origin of the neutrino masses and the strong CP problem. However, the details of the phenomenology in these scenarios rely on the assumption of a stable vacuum, characterized by moduli fields. In this note, we drop this assumption and address the problem of moduli stabilization in realistic orbifold models. We study their qualities and their 4D effective action, and discuss how nonperturbative effects indeed lift all bulk moduli directions. The resulting vacua, although still unstable, are typically de Sitter and there are generically some quasi-flat directions which can help to deal with cosmological challenges, such as inflation.
No associations
LandOfFree
Moduli fixing in semirealistic string compactifications does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Moduli fixing in semirealistic string compactifications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moduli fixing in semirealistic string compactifications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-332894