Phys. Rev. Lett. 87, 081801 (2001) [4 pages]Measurement of the Electric Form Factor of the Neutron through d⃗(e⃗,e′n)p at Q2 = 0.5(GeV/c)2Received 26 March 2001; published 3 August 2001 We report the first measurement using a solid polarized target of the neutron electric form factor GEn via d⃗(e⃗,e′n)p. GEn was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ( 15ND3). The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility in quasifree kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find GEn = 0.04632±0.00616(stat)±0.00341(syst) at Q2 = 0.495(GeV/c)2. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.081801
DOI:
10.1103/PhysRevLett.87.081801
PACS:
13.40.Gp, 14.20.Dh
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