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Measurement of the neutron electric form factor G[sub E][sup n] in D-vector(e-vector,e[sup [prime]]n)p quasi-elastic scattering at Q[sup 2] = 0.5(GeV/c)[sup 2]

Conference ·
OSTI ID:801489
We have determined the electric form factor of the neutron G{sup n}/{sub E} from the reaction D(e, e'n)p using a longitudinally polarized electron beam and a polarized deuterium target at Jefferson Lab's Hall C. The knocked out neutron was detected in coincidence with the electron in a shielded neutron detector. The beam-target asymmetry of quasi-elastically scattered electrons was measured for opposite orientations of the beam helicity which allowed the extraction of G{sup n}/{sub E}. This method is insensitive to the deuteron structure and avoids longitudinal/transverse Rosenbluth separation, both potential sources of large systematic errors. We present the results of a preliminary analysis for G{sup n}/{sub E} at Q{sup 2} = 0.5(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:
801489
Report Number(s):
JLAB-PHY-00-41; DOE/ER/40150-2173
Country of Publication:
United States
Language:
English