  Precise measurement of the neutrino mixing angle $\theta_{13}$ is the primary
goal of the Double Chooz Experiment (DC), which is located in Chooz, France.
The inverse beta decay process provides a unique signature of reactor
anti-neutrino interactions, giving prompt signals from positron annihilation
and delayed signals from neutron capture by either Gadolinium (Gd) or Hydrogen
(H). This paper is dedicated to the latest nH analysis in Double Chooz.
Typically, The Gd analysis is primary since fewer background events are
involved. However, with accurate estimates of backgrounds and a precise
reconstruction of energy, the nH analysis gives a powerful independent
measurement of $\theta_{13}$.
