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Measurements of the Electric Form Factor of the Neutron up to Q2=3.4 GeV2 using the Reaction He3(e,e'n)pp

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arxiv 1008.1738 v2 pith:I5RJW2BZ submitted 2010-08-10 nucl-ex

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keywords wereelectricelectronsfactorformgev2neutronpolarized
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The electric form factor of the neutron was determined from studies of the reaction He3(e,e'n)pp in quasi-elastic kinematics in Hall A at Jefferson Lab. Longitudinally polarized electrons were scattered off a polarized target in which the nuclear polarization was oriented perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons that were registered in a large-solid-angle detector. More than doubling the Q2-range over which it is known, we find GEn = 0.0225 +/- 0.0017 (stat) +/- 0.0024 (syst), 0.0200 +/- 0.0023 +/- 0.0018, and 0.0142 +/- 0.0019 +/- 0.0013 for Q2 = 1.72, 2.48, and 3.41 GeV2, respectively.

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Cited by 3 Pith papers

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  1. The nucleon structure from an AdS/QCD model in the Veneziano limit

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    Using the VQCD holographic model, the authors compute four sets of proton observables that match experiment and lattice data, but many inputs are fitted rather than predicted.

  2. Electromagnetic nucleon form factors in the extended vector meson dominance model

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    A six-parameter extended vector meson dominance model with four rho/omega radial excitations per channel is fitted to world data on nucleon form factors, giving a moderate but physically constrained description.

  3. Baryon Form Factors

    hep-ph 2024-12 accept novelty 2.0 of 10

    A review of baryon form factors summarizing the authors' dispersion-theoretical fits, which yield r_p^E = 0.840 fm, r_p^M = 0.849 fm, and r_n^M = 0.864 fm.

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