Constructing flat inflationary potentials in supersymmetry

摘要: We show that in supersymmetry one can obtain inflationary potentials the observable sector are sufficiently flat at sub-Planckian field values. Structure of supersymmetric scalar potential along a direction combined with existence higher order terms an effective theory expansion allows to find scales below cut off where two or number derivatives may vanish. As explicit example, we demonstrate inflection point inflation within broad range O(TeV) << H < 3 x 10^9 GeV be accommodated weak scale supersymmetry. The fine tuning model parameters needed for successful is considerably improved this scenario.