English

Natural New Inflation in Broken Supergravity

High Energy Physics - Phenomenology 2011-07-19 v2

Abstract

We consider a natural new inflationary model in broken supergravity based on an R symmetry. The model predicts a concrete relation between the amplitude of primordial density fluctuations and the scale of supersymmetry breaking. The observed value of the density fluctuations is obtained for the gravitino mass of order the weak scale along with a power-law spectral index considerably less than one, which may be tested in future observations.

Keywords

Cite

@article{arxiv.hep-ph/9608359,
  title  = {Natural New Inflation in Broken Supergravity},
  author = {K. -I. Izawa and T. Yanagida},
  journal= {arXiv preprint arXiv:hep-ph/9608359},
  year   = {2011}
}

Comments

12 pages, latex

R2 v1 2026-07-22T14:32:53.358Z