Measurement of the Neutron Electromagnetic Form Factor at High Q²

The neutron electromagnetic form factors, G_Eⁿ and G_Mⁿ, give important insights into the neutron structure. In previous experiments the proton electromagnetic form factors, G_E^p, was measured up to Q² = 8.5 GeV², and G_M^p was measured up to Q² = 30 GeV², while G_Eⁿ has only been measured up to Q² = 3.4 GeV². The Super BigBite Spectrometer (SBS) program at JLab will measure the neutron form factor ratio, G_Eⁿ/G_Mⁿ, at Q² values of 2.9, 6.6, and 9.7 GeV² by colliding a polarized electron beam with a polarized ³He target, used here as an effective polarized neutron target, and measuring the double spin asymmetry of the cross section. These measurements are scheduled to be completed in March of 2023 and preliminary analysis is underway. Early analysis of our 2.9 and 6.6 Q² points will be presented.