Phenomenology of the minimal inflation scenario: inflationary
  trajectories and particle production
  We discuss the phenomenology of the minimal inflation scenario. We
concentrate on two aspects: inflationary trajectories and particle production.
Our findings can be summarized in two main results: first, that inflationary
trayectories that are very flat and provide enough number of e-foldings are
natural in the scenario without fine tunning. We present a general formalism to
identify attractors in multi-field inflation regardless of trajectories
fulfilling the slow-roll conditions. We then explore particle production in the
model and show how the inflaton naturally transmutes into a dark matter
particle. One interesting feature of our model is that it provides a novel
mechanism to generate particles and entropy in the universe: the filling of the
Fermi sphere up to a given momentum p_F due to the sea of goldstinos that are
an important part of the matter generated after inflation. With this mechanism
in hand we predict that the gravitino should have a mass of > 100-1000 TeV.
Another interesting feature of our model is that the predicted level of gravity
waves is r=0.1 - 0.001, which is in the range of detectability from Planck and
upcoming CMB polarization experiments.
