In supersymmetric theories, the
R symmetry plays a unique role in
suppressing a constant term in the superpotential. In single chiral field
models of spontaneous breaking of a discrete
R symmetry, an
R-breaking
field can be a good candidate for an inflaton in new inflation models. In this
paper, we revisit the compatibility of the single-field
R-breaking new
inflation model with the
... [Show full abstract] results of the Planck experiment. As a result, we find
that the model predicts a lower limit on the gravitino mass,
TeV. This lower limit is consistent with the observed Higgs mass of 126 GeV
when the masses of the stops are of order the gravitino mass scale.