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Measurement of the electric form factor of the neutron at Q2=0.5 and 1.0 GeV2/c2.

Warren, G; Wesselmann, F; Zhu, H; McKee, P; Savvinov, N; Zeier, M; Aghalaryan, A; Ahmidouch, A; Arenhövel, H; Asaturyan, R; Ben-Dayan, I; Bloch, F; Boeglin, W; Boillat, B; Breuer, H; Brower, J; Carasco, C; Carl, M; Carlini, R; Cha, J; Chant, N; Christy, E; Cole, L; Coman, L; Coman, M; Crabb, D; Danagoulian, S; Day, D; Duek, K; Dunne, J; Elaasar, M; Ent, R; Farrell, J; Fatemi, R; Fawcett, D; Fenker, H; Forest, T; Garrow, K; Gasparian, A; Goussev, I; Gueye, P; Harvey, M; Hauger, M; Herrera, R; Hu, B; Jaegle, I; Jones, M; Jourdan, J; Keith, C; Kelly, J.

Phys Rev Lett ; 92(4): 042301, 2004 Jan 30.

Artículo en Inglés | MEDLINE | ID: mdl-14995367

RESUMEN

The electric form factor of the neutron was determined from measurements of the d-->(e-->,e'n)p reaction for quasielastic kinematics. Polarized electrons were scattered off a polarized deuterated ammonia (15ND3) target in which the deuteron polarization was perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle detector. We find G(n)(E)=0.0526+/-0.0033(stat)+/-0.0026(sys) and 0.0454+/-0.0054+/-0.0037 at Q(2)=0.5 and 1.0 (GeV/c)(2), respectively.

RESUMEN

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