Neutron Magnetic Structure

New data from CLAS in Hall B probe the magnetic structure of the neutron at large momentum transfers, or small distances, with high precision. The magnetic form factor of the neutron, G_Mⁿ, has been extracted from measurements of the ratio of quasi-elastic, electron-neutron to electron-proton scattering in deuterium over a Q² range of 0.5-4.8 (GeV/c)². The CLAS detector enabled the use of a combination of experimental techniques that allowed unprecedented precision to be achieved at Q² ≥ 1 (GeV/c)². Preliminary results of these measurements are compared to previous data in the figure at right. These data will provide stringent tests of nucleon structure models and allow for more precise extractions of other nucleon structure information.