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

H. Zhu, A. Ahmidouch, H. Anklin, H. Arenhövel, C. Armstrong, C. Bernet, W. Boeglin, H. Breuer, P. Brindza, D. Brown, S. Bültmann, R. Carlini, N. Chant, A. Cowley, D. Crabb, S. Danagoulian, D. B. Day, T. Eden, R. Ent, Y. FarahR. Fatemi, K. Garrow, C. Harris, M. Hauger, A. Honegger, J. Jourdan, M. Kaufmann, M. Khandaker, G. Kubon, J. Lichtenstadt, R. Lindgren, R. Lourie, A. Lung, D. Mack, S. Malik, P. Markowitz, K. McFarlane, P. McKee, D. McNulty, G. Milanovich, J. Mitchell, H. Mkrtchyan, M. Mühlbauer, T. Petitjean, Y. Prok, D. Rohe, E. Rollinde, O. A. Rondon, P. Roos, R. Sawafta, I. Sick, C. Smith, T. Southern, M. Steinacher, S. Stepanyan, V. Tadevosyan, R. Tieulent, A. Tobias, W. Vulcan, G. Warren, H. Wöhrle, S. Wood, C. Yan, M. Zeier, J. Zhao, B. Zihlmann

Research output: Contribution to journalArticlepeer-review


We report the first measurement using a solid polarized target of the neutron electric form factor GnE via d(e, e′n)p. GnE 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 GnE = 0.04632 ±0.00616(stat)±0.00341(syst) at Q2 = 0.495 (GeV/c)2.

Original languageEnglish
Pages (from-to)81801-1-81801-4
JournalPhysical Review Letters
Issue number8
StatePublished - 20 Aug 2001


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