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FIZIKA B 13 (2004) 2, 531-536
 
MEASUREMENT OF THE NEUTRON'S ELECTRIC FORM FACTOR GEn
VIA DOUBLY POLARIZED, QUASI-ELASTIC SCATTERING AT JEFFERSON LAB
FRANK R. WESSELMANN
University of Virginia, Charlottesville, Virginia 22904, USA
for the E93-026 Collaboration
Received 6 November 2003; Accepted 24 May 2004
Online 22 November 2004
We determined the electric form factor of the neutron GEn
via the reaction d(e,e¢n)p using a
longitudinally polarized electron beam and a frozen, polarized 15ND3
target at Jefferson Lab. The knocked out neutrons were detected in a segmented plastic
scintillator in coincidence with the quasi-elastically scattered electrons which were
tracked in Hall C's High Momentum Spectrometer. To extract GEn,
we compared the experimental beam-target asymmetry with theoretical calculations based on
different GEn models. We report the
results of the fall 2001 run at Q2=0.5 and 1.0 (GeV/c)2.
PACS numbers: 13.40.Gp, 14.20.Dh
UDC 539.12
Keywords: neutron, electric form factor, polarized electron beam, polarized 15ND3
target, neutron - electron coincidences
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