O'R Inflation in $F$-term Supergravity
  The supersymmetric realization of inflation in $F$-term supergravity is
usually plagued by the well known "$\eta$" problem. In this paper, a broad
class of small-field examples is realized by employing general O' Raifeartaigh
superpotentials, where the moduli is identified as the massless inflaton. For
illustration we present the simplest example in detail, which can be considered
as a generalization of hybrid inflation.
