Target Normal Single-Spin Asymmetry in Inclusive DIS

A proposal (P07--013) to measure the target normal single spin asymmetry $A^n_N$ in inclusive deep-inelastic $n^{\uparrow}(e,e')$ reaction with a vertically polarized $^3$He target has been conditionally approved to run during Jefferson Lab's Hall A neutron transversity experiments (E06--010) and (E06--011) in summer 2008. The expected accuracy of this measurement is $\delta A^n_N = 2$--$4\times 10^{-4}$ at four different values of the invariant mass. The normal spin asymmetry in DIS probes helicity--flip amplitudes at the quark level related to effects beyond the leading-twist picture of DIS. Preparations for this experiment will be discussed including the development of a secondary luminosity monitor for Hall A.