Measurement of the Electric Form Factor of the Neutron through d-->(e-->,e'n)p at Q2 = 0.5 (GeV/c)2
Abstract
We report the first measurement using a solid polarized target of the neutron electric form factor GnE via d-->(e-->,e'n)p. GnE 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 GnE = 0.04632+/-0.00616(stat)+/-0.00341(syst) at Q2 = 0.495 (GeV/c)2.
- Publication:
-
Physical Review Letters
- Pub Date:
- August 2001
- DOI:
- 10.1103/PhysRevLett.87.081801
- arXiv:
- arXiv:nucl-ex/0105001
- Bibcode:
- 2001PhRvL..87h1801Z
- Keywords:
-
- Nuclear Experiment
- E-Print:
- Latex2e 5 pages, 3 figures