Measurement of the electric form factor of the neutron through d-->(e-->,e(')n)p at Q2 = 0.5 (GeV/c)(2)

Measurement of the electric form factor of the neutron through d-->(e-->,e(')n)p at Q2 = 0.5 (GeV/c)(2)

We report the first measurement using a solid polarized target of the neutron electric form factor G(n)(E) via d-->(e-->,e(')n)p. G(n)(E) was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ( 15ND3). The m...

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Veröffentlicht in:Physical review letters 2001-08, Vol.87 (8), p.081801-081801
Hauptverfasser: Zhu, H, Ahmidouch, A, Anklin, H, Arenhövel, H, Armstrong, C, Bernet, C, Boeglin, W, Breuer, H, Brindza, P, Brown, D, Bültmann, S, Carlini, R, Chant, N, Cowley, A, Crabb, D, Danagoulian, S, Day, D B, Eden, T, Ent, R, Farah, Y, Fatemi, R, Garrow, K, Harris, C, Hauger, M, Honegger, A, Jourdan, J, Kaufmann, M, Khandaker, M, Kubon, G, Lichtenstadt, J, Lindgren, R, Lourie, R, Lung, A, Mack, D, Malik, S, Markowitz, P, McFarlane, K, McKee, P, McNulty, D, Milanovich, G, Mitchell, J, Mkrtchyan, H, Mühlbauer, M, Petitjean, T, Prok, Y, Rohe, D, Rollinde, E, Rondon, O A, Roos, P, Sawafta, R, Sick, I, Smith, C, Southern, T, Steinacher, M, Stepanyan, S, Tadevosyan, V, Tieulent, R, Tobias, A, Vulcan, W, Warren, G, Wöhrle, H, Wood, S, Yan, C, Zeier, M, Zhao, J, Zihlmann, B
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Sprache:eng
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Zusammenfassung:We report the first measurement using a solid polarized target of the neutron electric form factor G(n)(E) via d-->(e-->,e(')n)p. G(n)(E) was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ( 15ND3). 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(n)(E) = 0.04632+/-0.00616(stat)+/-0.00341(syst) at Q2 = 0.495 (GeV/c)(2).
ISSN:0031-9007