Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed
  Neutrinos
  We show that, leaving aside accelerated cosmic expansion, all experimental
data in high energy physics that are commonly agreed to require physics beyond
the Standard Model can be explained when completing it by three right handed
neutrinos that can be searched for using current day experimental techniques.
The model that realises this scenario is known as Neutrino Minimal Standard
Model (\nu MSM). In this article we give a comprehensive summary of all known
constraints in the \nu MSM, along with a pedagogical introduction to the model.
We present the first complete quantitative study of the parameter space of the
model where no physics beyond the \nu MSM is needed to simultaneously explain
neutrino oscillations, dark matter and the baryon asymmetry of the universe.
This requires to track the time evolution of left and right handed neutrino
abundances from hot big bang initial conditions down to temperatures below the
QCD scale. We find that the interplay of resonant amplifications, CP-violating
flavour oscillations, scatterings and decays leads to a number of previously
unknown constraints on the sterile neutrino properties. We furthermore
re-analyse bounds from past collider experiments and big bang nucleosynthesis
in the face of recent evidence for a non-zero neutrino mixing angle
\theta_{13}. We combine all our results with existing constraints on dark
matter properties from astrophysics and cosmology. Our results provide a
guideline for future experimental searches for sterile neutrinos. A summary of
the constraints on sterile neutrino masses and mixings has appeared in
arXiv:1204.3902 [hep-ph]. In this article we provide all details of our
calculations and give constraints on other model parameters.
