Jones-Woodward, C.E.Beise, E.J.Belz, J.E.Carr, R.W.Filippone, B.W.Lorenzon, W.McKeown, R.D.Mueller, B.A.O'Neill, T.G.Dodson, G.Dow, K.Farkhondeh, M.Kowalski, S.Lee, K.Makins, N.Milner, R.Thompson, A.Teiger, D.van den Brand, J.F.L.Young, A.Yu, X.Zumbro, J.D.We report a measurement of the asymmetry in spin-dependent quasielastic scattering of longitudinally polarized electrons from a polarized 3He 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 3He wave function.PhysicsElectronsArticle