Abstract
Discrete R symmetries are interesting from a variety of points of view. They raise the specter, however, of domain walls, which may be cosmologically problematic. In this note, we describe some of the issues. In many schemes for supersymmetry breaking, as we explain, satisfying familiar constraints such as suppression of gravitino production, insures that the domain walls are readily inflated away. However, in others, they form after inflation. In these cases, it is necessary that they annihilate. We discuss possible breaking mechanisms for the discrete symmetries, and the constraints they must satisfy so that the walls annihilate effectively.
Original language | English |
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Article number | 3 |
Journal | Journal of High Energy Physics |
Volume | 2010 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Anomalies in field and string theories
- Cosmology of theories beyond the sm
- Discrete and Finite Symmetries
- Supergravity models
ASJC Scopus subject areas
- Nuclear and High Energy Physics