Pseudonatural Inflation

Details Pseudonatural Inflation Pseudonatural Inflation

2003-02-06

arxiv.org/abs/hep-th/0302034v2

JCAP 0307:003,2003

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 2 figures. v2: minor changes, ref. added, accepted for JCAP

Scientific paper

10.1088/1475-7516/2003/07/003

We study how to obtain a sufficiently flat inflaton potential that is natural from the particle physics point of view. Supersymmetry, which is broken during inflation, cannot protect the potential against non-renormalizable operators violating slow-roll. We are therefore led to consider models based on non-linearly realized symmetries. The basic scenario with a single four-dimensional pseudo Nambu Goldstone boson requires the spontaneous breaking scale to be above the Planck scale, which is beyond the range of validity of the field theory description, so that quantum gravity corrections are not under control. A nice way to obtain consistent models with large field values is to consider simple extensions in extra-dimensional setups. We also consider the minimal structures necessary to obtain purely four-dimensional models with spontaneous breaking scale below M_P; we show that they require an approximate symmetry that is supplemented by either the little-Higgs mechanism or supersymmetry to give trustworthy scenarios.

Affiliated with

Also associated with

No associations

Rating

Pseudonatural Inflation 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 Pseudonatural Inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pseudonatural Inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-99637