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Measurement of the Electric Form Factor of the Neutron through d-vector(e-vector, e'n)p

Journal Article · · Physical Review Letters
We report the first measurement using a solid polarized target of the neutron electric form factor G{sup n}{sub E} via d-vector(e-vector, e'n)p. G{sup n}{sub E} was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ({sup 15}ND{sub 3}). 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 G{sup n}{sub E} = 0.04632{+-}0.00616(stat){+-}0.00341(syst) at Q{sup 2} = 0.495 (GeV/c){sup 2}.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
804112
Report Number(s):
JLAB-PHY-01-45; DOE/ER/40150-2328
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 87; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English