Constructing flat inflationary potentials in supersymmetry Academic Article uri icon

abstract

  • We show that in supersymmetry one can obtain inflationary potentials in the observable sector that are sufficiently flat at sub-Planckian field values. Structure of the supersymmetric scalar potential along a flat direction combined with the existence of higher order terms in an effective field theory expansion allows one to find scales below the effective field theory cutoff where two or a higher number of the potential derivatives may vanish. As an explicit example, we demonstrate that inflection point inflation within a broad range of scales O(TeV)Hinf<3×109GeV can be accommodated within weak scale supersymmetry. The fine tuning of model parameters needed for successful inflation is considerably improved in this scenario. © 2011 American Physical Society.

published proceedings

  • Physical Review D

author list (cited authors)

  • Allahverdi, R., Downes, S., & Dutta, B

citation count

  • 11

complete list of authors

  • Allahverdi, Rouzbeh||Downes, Sean||Dutta, Bhaskar

publication date

  • November 2011