Session OB11 - Minisymposium on the Structure of the Nucleon II.
ORAL session, Wednesday morning, March 24
Room 218E, GWCC

Hongguo Zhu (University of Virginia)

The form factors of the neutron and proton give information on fundamental properties of the nucleon, and provide a critical testing ground for models based on QCD. In late 1998, experiment E-93026 at Jefferson Lab has been carried out to determine nucleon form factors by measuring the spin dependent part of the elastic electron-nucleon cross section. A longitudinally polarized electron beam was scattered from polarized deuterated ammonia(ND3) target and the quasi-elastic electron was detected coincident with the knock out neutron and proton. The measurement has been completed successfully at Q2=0.5 GeV^2/c^2 and partially completed at Q2=1.0 GeV^2/c^2. The preliminary results of the measurements for both proton and neutron charge form factors and comparison to various models will be reported.

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