Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-07-21
AIPConf.Proc.881:144-155,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages including 1 figure, uses aipproc.cls, references added, talk given at Cairo International Conference on High Energy P
Scientific paper
10.1063/1.2435289
Supersymmetric Peccei-Quinn models which provide a suitable candidate for the curvaton field are studied. These models also solve the mu problem, while generating the Peccei-Quinn scale dynamically. The curvaton is a pseudo Nambu-Goldstone boson corresponding to an angular degree of freedom orthogonal to the axion. Its order parameter increases substantially following a phase transition during inflation. This results in a drastic amplification of the curvaton perturbations. Consequently, these models are able to accommodate low-scale inflation with Hubble parameter at the TeV scale such as modular inflation. We find that modular inflation with the orthogonal axion as curvaton can indeed account for the observations for natural values of the parameters. In particular, the spectral index can easily be made adequately lower than unity in accord with the recent data.
No associations
LandOfFree
Modular inflation and the curvaton 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 Modular inflation and the curvaton, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular inflation and the curvaton will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-169160