F-Term Hybrid Inflation and SUSY Breaking
C. Pallis
Full text: pdf
Pre-published on: December 09, 2025
Published on: December 10, 2025
Abstract
We consider F-term hybrid inflation and supersymmetry breaking in
the context of a model which largely respects a global U(1) R
symmetry. The Kaehler potential parameterizes the Kaehler manifold
with an enhanced U(1)_Rx(SU(1,1)/U(1)) symmetry, where the scalar
curvature of the second factor is determined by the achievement of
a supersymmetry-breaking de Sitter vacuum without ugly tuning. The
magnitude of the emergent soft tadpole term for the inflaton can
be adjusted in the range (1.2-460) TeV -- increasing with the
dimensionality of the representation of the waterfall fields -- so
that the inflationary observables are in agreement with the
observational requirements. The mass scale of the supersymmetric
partners turns out to lie in the region (0.09-253) PeV which is
compatible with high-scale supersymmetry and the results of LHC on
the Higgs boson mass. The mu parameter can be generated by
conveniently applying the Giudice-Masiero mechanism and assures
the out-of-equilibrium decay of the R saxion at a low reheat
temperature Trh<163 GeV.
DOI: https://doi.org/10.22323/1.490.0115
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