Hidden sector axions: physics and cosmology
| dc.creator | Nilles, Hans Peter | |
| dc.date | 2003-07-25 | |
| dc.date.accessioned | 2026-07-07T03:50:13Z | |
| dc.date.available | 2026-07-07T03:50:13Z | |
| dc.description | Embedding hidden sector supergravity models in the framework of string theory leads to the appearance of axion-like degrees of freedom. Among them is the model independent axion of heterotic string theory. It has a decay constant of order of the Planck scale and could play the role of a quintessence field. In models allowing for the required $μ$ term in the TeV range, the hidden sector dynamics leads to a vacuum energy of $(0.003 {\rm eV})^4$ via a multiple see-saw effect. A solution to the strong CP-problem is provided by an additional hidden sector pseudoscalar with properties that make it an acceptable candidate for cold dark matter of the universe. | |
| dc.description | Contribution to the Proceedings of SUGRA20, International Conference 20 Years of SUGRA and Search for SUSY and Unification, Northeastern University, Boston, USA, March 2003 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0307312 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0307312 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42690 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.title | Hidden sector axions: physics and cosmology | |
| dc.type | text |