We report a measurement of the asymmetry in spin-dependent quasielastic scattering of longitudinally polarized electrons from a polarized He3 gas target. The asymmetry is measured at kinematics sensitive to the transverse-longitudinal response function RTL(Q2,ω). The value of the neutron electric form factor GEn(Q2=0.16 (GeV/c2))=+0.070±0.100±0. 035 is extracted from the asymmetry using a Faddeev calculation of the He3 wave function.
ASJC Scopus subject areas
- Nuclear and High Energy Physics