Inflation from fermions with curvature-dependent mass
  A model of inflation realization driven by fermions with curvature-dependent
mass is studied. Such a term is derived from the Covariant Canonical Gauge
Theory of gravity (CCGG) incorporating Dirac fermions. We obtain an initial de
Sitter phase followed by a successful exit, and moreover, we acquire the
subsequent thermal history, with an effective matter era, followed finally by a
dark-energy epoch. This behavior is a result of the effective `weakening' of
gravity at early times, due to the decreased curvature-dependent fermion mass.
Through the perturbation level, we obtain the scalar spectral index and the
tensor-to-scalar ratio, which are in agreement with the Planck observations.
The efficiency of inflation from fermions with curvature-dependent mass, at
both the background and perturbation level, reveals the capabilities of the
scenario and makes it a good candidate for the description of nature.
