Abstract
Experiment E02‐013 at Thomas Jefferson National Accelerator Facility will extend the measured range of the neutron electric form factor GEn to Q2=3.4 (GeV/c)2 through a measurement of the cross section asymmetry in the reaction 3He(e,e′n). Recent theoretical investigations, motivated by the results on the ratio of the proton electric and magnetic form factor, predict higher values of GEn compared to older predictions. The experiment utilizes a polarized 3He target and the polarized CEBAF electron beam. Scattered electrons will be detected in the BigBite spectrometer, recoiling neutrons in an array of scintillators. The experimental and theoretical developments needed to perform the measurement and to extract GEn from 3He will be described. Concepts of extending the measurement of GEn to even higher momentum transfers will be discussed.
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