Precise neutron magnetic form factors

Kubon, G.; Anklin, H.; Bartsch, P.; Baumann, D.; Boeglin, W.; Bohinc, Klemen; Böhm, R.; Distler, M. O.; Ewald, I.; Jm, Friedrich; Hauger, M.; Honegger, A.; Jennewein, P.; Jourdan, J.; Kahrau, M.; Krygier, K. W.; Liesenfeld, A.; Merkel, H.; Müller, U.; Neuhausen, R.; Normand, Ch.; Petitjean, T.; Pospischil, Th.; Potokar, M.; Rohe, D.; Rosner, G.; Schmieden, H.; Sick, I.; Širca, S.; Trueb, P.; Wagner, Andreas; Walcher, Th.; Warren, G.; Weis, M.; Wöhrle, H.; Zeier, M.; Zhao, J.; Zihlmann, B.

doi:10.1016/s0370-2693(01)01386-7

Cited by 186 publications

(124 citation statements)

References 24 publications

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“…The first contains values of proton magnetic form factor data tabulated in [77]. The second contains the proton data and the neutron magnetic form factor data tabulated in [78,79,80,81,82,83,84]. The third contains the proton and neutron data and the two-pion continuum data constructed from pion form factor data and a ππ → NN partial amplitude using (14).…”

Section: Discussionmentioning

confidence: 99%

Model independent extraction of the proton magnetic radius from electron scattering

2014

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We combine constraints from analyticity with experimental electron-proton scattering data to determine the proton magnetic radius without model-dependent assumptions on the shape of the form factor. We also study the impact of including electron-neutron scattering data, and ππ → NN data. Using representative datasets we find for a cut of Q 2 ≤ 0.5 GeV 2 , r p M = 0.91 +0.03 −0.06 ± 0.02 fm using just proton scattering data; r p M = 0.87 +0.04 −0.05 ± 0.01 fm adding neutron data; and r p M = 0.87 +0.02 −0.02 fm adding ππ data. We also extract the neutron magnetic radius from these data sets obtaining r n M = 0.89 +0.03 −0.03 fm from the combined proton, neutron, and ππ data.

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Section: Discussionmentioning

confidence: 99%

Model independent extraction of the proton magnetic radius from electron scattering

2014

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“…10 all G M n data obtained from cross section measurements are displayed, including the SLAC experiments [Roc92,Lun93], which measured inclusive quasi-elastic ed cross sections. The more recent ELSA [Bru95] and MAMI [Ank94,Ank98,Kub02] experiments are simultaneous measurements of the cross section for quasi elastic scattering on the neutron and proton in the deuteron, d(e, e ′ n)p and d(e, e ′ p)n; the systematics is then dominated by the uncertainty in the neutron detector efficiency; much attention was given to that calibration in these experiments. In the ELSA experiment [Bru95] protons and neutrons were detected in the same scintillator, and the neutron efficiency was determined in situ with the neutrons from 1 H(γ, π).…”

Section: Neutron Magnetic Form Factor Measurementsmentioning

confidence: 99%

Nucleon electromagnetic form factors

Perdrisat

Punjabi

Vanderhaeghen

2007

Progress in Particle and Nuclear Physics

469

583

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There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at MIT-Bates, MAMI, and JLab. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

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“…The G n E was extracted by comparing the corrected experimental asymmetry to the theoretical asymmetry averaged over the experimental acceptance under different assumptions about the size of the G n E . The extracted value was corrected for the deviation of the magnetic form factor G n M from the dipole parametrization [9] used in the theoretical calculations. The preliminary results are:…”

Section: Analysis and Resultsmentioning

confidence: 99%

A polarized target measurement of the electric form factor of the neutron at JLab

Savvinov¹

2004

Braz. J. Phys.

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The experiment E93-026 at the Thomas Jefferson National Accelerator Facility (JLab) determined the electric form factor of the neutron G n E through quasielastic d( e, e n)p scattering using a longitudinally polarized electron beam and a frozen polarized 15 N D3 target. The knocked out neutrons were detected in a segmented plastic scintillator detector in coincidence with the scattered electrons. The G n E was extracted by comparing the experimental beam-target asymmetry with full theoretical calculations based on different values of G n E . Preliminary results of the Fall 2001 run are reported.

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Precise neutron magnetic form factors

Cited by 186 publications

References 24 publications

Model independent extraction of the proton magnetic radius from electron scattering

Model independent extraction of the proton magnetic radius from electron scattering

Nucleon electromagnetic form factors

A polarized target measurement of the electric form factor of the neutron at JLab

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