  We consider the physics reach at the high luminosity LHC (HL-LHC) using the
timing capability of a minimum ionizing particle (MIP) timing layer and the
electromagnetic calorimeter in the CMS experiment for a simplified right-handed
neutrino effective theory. In the simplified model, the lightest right-handed
neutrinos are produced through higgs decay with mean decay lengths of order
$\mathcal{O}(0.1~{\rm m}-100~{\rm m}$) and then subsequently decay into final
states that include electrons. We consider the effect of several different
kinematic cuts for a timing based analysis of this model. We demonstrate that
if timing information can be successfully incorporated into the event trigger,
it is possible to probe the higgs branching ratio to two right-handed neutrinos
to the order $\mathcal{O}(10^{-5}) $ for a range of different right-handed
neutrino lifetimes.
