  The Standard Model extended with right-handed neutrinos whose masses are
below the electroweak scale provides a simultaneous solution for the origin of
neutrino masses and of the baryon asymmetry of the Universe, that can be tested
in current experiments. If three right-handed neutrinos participate to the
processes, their parameter space of solutions extends to very large mixing
angles, saturating the current experimental constraints. Solutions with
right-handed neutrino masses at the GeV scale can be probed in the decay of $B$
mesons at the LHC. For this channel the collision of isotopes of intermediate
mass such as Ar provides a better sensitivity per unit of running time compared
to collisions with protons.

High Energy Physics - Phenomenology;High Energy Physics - Experiment