Measurement of the Neutron ($^3$He) Spin Structure Functions at low $Q^{2}$

Experiment E97-110 was performed at Jefferson Lab in Hall A to examine the neutron and $^{3}$He spin structure. A longitudinally-polarized electron beam (1.1 $\leq E \leq$ 4.4 GeV) was scattered from a longitudinally or transversely polarized $^{3}$He target. Polarized cross-section differences were measured to extract the spin structure functions $g_{1}(x,Q^{2})$ and $g_{2}(x,Q^{2})$. The extended Gerasimov-Drell-Hearn integral and the moments of the neutron and $^{3}$He spin structure functions were extracted at very low momentum transfers (0.02 $< Q^{2} <$ 0.3 GeV$^{2}$). This $Q^{2}$ range allows us to make a benchmark-check of chiral perturbation theory calculations. The experimental details will be discussed and results on moments of the spin structure functions will be presented.