Measurements of the Electric Form Factor of the Neutron at High Momentum 
Transfer

Seamus Riordan
Carnegie Mellon University/University of Virginia
for the Jefferson Lab Hall A and E02-013 Collaborations

Session: Spin Structure of Nucleons

The electric and magnetic form factors of the nucleons parameterize elastic 
scattering in the one photon exchange approximation and provide a experimental 
access to the underlying charge and magnetic moment distributions of quarks.  
E02-013 measured the electric form factor of the neutron at four kinematic 
points between 1.2 and 3.5 $\mathrm{GeV}^2$.  This greatly extends the momentum
 transfer region where this quantity had previously been measured, providing 
new information on the structure of the neutron.  Preliminary results for 
$G_E^n$ at $Q^2$ = 1.7 and 3.5 $\mathrm{GeV}^2$ will be compared with QCD-based
 models and phenomenological approaches.